US3645147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Individual
•
Filing: 1969-11-10
•
Granted: 1972-02-29
•
Expires: 1989-11-10
Abstract
Abstract A transmission including a die cast transmission housing which is readily convertible for use with three-, four-, or five-speed, sliding gear, fully synchronized transmission assemblies, which assemblies may be accomplished on the motor vehicle, thereby eliminating the need for separate transmission assembly facilities, and, when used as a five-speed transmission, including a novel first and reverse duplex gear arrangement in the rear extension housing.
Inventors
- 👤 James W Fodrea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:39
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/033; F16H2057/02039; F16H2057/02043; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/091; F16H3/0915; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19242; Y10T74/19377; Y10T74/19414; Y10T74/1947; Y10T74/19474; Y10T74/19479
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
373 words
In a transmission; a clutch housing including a rear wall, an input shaft aperture and a support shaft aperture formed in said rear wall; an input shaft having an input gear, an internal pilot bearing formed in said input gear; a bearing rotatably supporting and axially locating said input shaft in said input shaft aperture with said input gear outside of said rear wall of said clutch housing; an output shaft aligned with and operatively connected to said input shaft; a plurality of output gears rotatably mounted on said output shaft, a plurality of clutching means each operatively connected between one of said output gears and said output shaft and said output shaft and said input gear being selectively operable to provide each of a plurality of ratio drives; a cluster gear having a driven gear for meshing with sad input gear and a driving gear for meshing with each of said output gears, bearing means and a support shaft rotatably supporting through said bearing means said cluster gear for rotation on said support shaft; and idler gear and idler shaft with said idler gear being mounted on said idler shaft; a transmission housing having a smooth internal surface which tapers from a smaller portion at the base to A larger opening at the lip thereof so that said internal surface is readily draftable with a one-piece core and an external surface of said transmission housing which is readily castable; said transmission housing having a rear wall, an output shaft aperture, an idler shaft aperture and a support shaft aperture formed in said rear wall of said transmission housing; said support shaft being mounted in said support shaft apertures in said rear walls of said clutch housing and said transmission housing; means axially and rotatably fixing said support shaft on said rear wall and said support shaft extending a predetermined distance into said support shaft aperture in said rear wall of said clutch housing; bearing means rotatably mounting and axially positioning said output shaft in said output shaft aperture in said rear wall of said transmission housing; said output shaft having an external front pilot portion extending into said internal pilot bearing of said clutch housing a distance less than said predetermined distance.
Claim 2
Dependent Claim
373 words
In a transmission; a clutch housing including a rear wall, an input shaft aperture and a support shaft aperture formed in said rear wall; an input shaft having an input gear, an internal pilot bearing formed in said input gear; a bearing rotatably supporting and axially locating said input shaft in said input shaft aperture with said input gear outside of said rear wall of said clutch housing; an output shaft aligned with and operatively connected to said input shaft; a plurality of output gears rotatably mounted on said output shaft, a plurality of clutching means each operatively connected between one of said output gears and said output shaft and said output shaft and said input gear being selectively operable to provide each of a plurality of ratio drives; a cluster gear having a driven gear for meshing with sad input gear and a driving gear for meshing with each of said output gears, bearing means and a support shaft rotatably supporting through said bearing means said cluster gear for rotation on said support shaft; and idler gear and idler shaft with said idler gear being mounted on said idler shaft; a transmission housing having a smooth internal surface which tapers from a smaller portion at the base to A larger opening at the lip thereof so that said internal surface is readily draftable with a one-piece core and an external surface of said transmission housing which is readily castable; said transmission housing having a rear wall, an output shaft aperture, an idler shaft aperture and a support shaft aperture formed in said rear wall of said transmission housing; said support shaft being mounted in said support shaft apertures in said rear walls of said clutch housing and said transmission housing; means axially and rotatably fixing said support shaft on said rear wall and said support shaft extending a predetermined distance into said support shaft aperture in said rear wall of said clutch housing; bearing means rotatably mounting and axially positioning said output shaft in said output shaft aperture in said rear wall of said transmission housing; said output shaft having an external front pilot portion extending into said internal pilot bearing of said clutch housing a distance less than said predetermined distance.
Claim 3
Dependent Claim
320 words
For use with a motor vehicle clutch mechanism including a clutch housing, a multispeed ratio transmission comprising a transmission case mounted on said clutch housing such that the outermost portion of said clutch housing forms the forward wall of said transmission case, first and second openings formed in said outermost portion of said clutch housing, an extension housing mounted on said transmission case such that the outermost portion of said transmission case forms the front wall of said extension housing, first and second openings formed in said outermost portion of said transmission case and axially aligned with said first and second openings, respectively, in said outermost portion of said clutch housing, a main shaft having a front portion mounted through said first opening in said clutch housing and a rear portion mounted through said first opening in said transmission case, an input gear and first, second and third ratio output gears mounted on said main shaft, retaining means for preventing rearward movement of said rear portion of said main shaft, bearing means adjacent the forward end of said rear portion for absorbing the forward thrust of said main shaft rear portion, a countershaft mounted in said aligned second openings, a drive gear and first, second and third input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, a third opening formed in said outermost portion of said transmission case, a reverse idler shaft mounted through said third opening, first and second reverse idler gears mounted on said reverse idler shaft, one in said transmission case and the other in said extension housing, a reverse output gear mounted on said main shaft in said extension housing for at times meshing with said second reverse idler gear, and shifter means mounted on said extension housing for at times sliding said reverse output gear into mesh with said second reverse idler gear.
Claim 4
Dependent Claim
320 words
For use with a motor vehicle clutch mechanism including a clutch housing, a multispeed ratio transmission comprising a transmission case mounted on said clutch housing such that the outermost portion of said clutch housing forms the forward wall of said transmission case, first and second openings formed in said outermost portion of said clutch housing, an extension housing mounted on said transmission case such that the outermost portion of said transmission case forms the front wall of said extension housing, first and second openings formed in said outermost portion of said transmission case and axially aligned with said first and second openings, respectively, in said outermost portion of said clutch housing, a main shaft having a front portion mounted through said first opening in said clutch housing and a rear portion mounted through said first opening in said transmission case, an input gear and first, second and third ratio output gears mounted on said main shaft, retaining means for preventing rearward movement of said rear portion of said main shaft, bearing means adjacent the forward end of said rear portion for absorbing the forward thrust of said main shaft rear portion, a countershaft mounted in said aligned second openings, a drive gear and first, second and third input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, a third opening formed in said outermost portion of said transmission case, a reverse idler shaft mounted through said third opening, first and second reverse idler gears mounted on said reverse idler shaft, one in said transmission case and the other in said extension housing, a reverse output gear mounted on said main shaft in said extension housing for at times meshing with said second reverse idler gear, and shifter means mounted on said extension housing for at times sliding said reverse output gear into mesh with said second reverse idler gear.
Claim 5
Dependent Claim
230 words
A multispeed ratio transmission comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as the forward wall of the transmission case and having first and second openings formed therein, said transmission case serving as the front wall of the extension housing and having first and second openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft mounted through said aligned first openings, a countershaft mounted in said aligned second openings, a first pocket formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said opening in said extension housing, a first speed ratio input gear formed on said extension shaft, a third opening formed in said transmission case, a second pocket formed in said extension housing and aligned with said third opening, a reverse idler shaft rotatably mounted in said third opening and said second pocket, a reverse idler gear mounted on said reverse idler shaft, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said first speed ratio input gear and said reverse idler gear.
Claim 6
Dependent Claim
230 words
A multispeed ratio transmission comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as the forward wall of the transmission case and having first and second openings formed therein, said transmission case serving as the front wall of the extension housing and having first and second openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft mounted through said aligned first openings, a countershaft mounted in said aligned second openings, a first pocket formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said opening in said extension housing, a first speed ratio input gear formed on said extension shaft, a third opening formed in said transmission case, a second pocket formed in said extension housing and aligned with said third opening, a reverse idler shaft rotatably mounted in said third opening and said second pocket, a reverse idler gear mounted on said reverse idler shaft, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said first speed ratio input gear and said reverse idler gear.
Claim 7
Dependent Claim
277 words
A multispeed ratio transmission comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as the forward wall of the transmission case and having first and second openings formed therein, a cylindrical throwout bearing support sleeve formed around said first opening and extending into said clutch housing, said transmission case serving as the front wall of the extension housing and having first and second openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft mounted through said aligned first openings, an input gear and second, third and fourth ratio output gears mounted on said main shaft, a countershaft mounted in said aligned second openings, a drive gear and second, third and fourth ratio input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, an opening formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said opening in said extension housing, a first speed ratio input gear formed on said extension shaft, a reverse idler gear assembly rotatably mounted through said front wall of said extension housing and having an idler gear adjacent each face of said front wall, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said first speed ratio input gear and said reverse idler gear in said extension housing.
Claim 8
Dependent Claim
277 words
A multispeed ratio transmission comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as the forward wall of the transmission case and having first and second openings formed therein, a cylindrical throwout bearing support sleeve formed around said first opening and extending into said clutch housing, said transmission case serving as the front wall of the extension housing and having first and second openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft mounted through said aligned first openings, an input gear and second, third and fourth ratio output gears mounted on said main shaft, a countershaft mounted in said aligned second openings, a drive gear and second, third and fourth ratio input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, an opening formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said opening in said extension housing, a first speed ratio input gear formed on said extension shaft, a reverse idler gear assembly rotatably mounted through said front wall of said extension housing and having an idler gear adjacent each face of said front wall, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said first speed ratio input gear and said reverse idler gear in said extension housing.
Claim 9
Dependent Claim
234 words
For use with a motor vehicle including a clutch mechanism, a multispeed ratio transmission comprising a main housing, a main shaft extending through said housing and operatively connected to said clutch mechanism, an input gear, second, third and fourth ratio output gears secured to said main shaft, a second-third synchronizing device and a fourth-fifth synchronizing device secured to said main shaft for selectively engaging said output gears, an extension housing mounted adjacent said main housing, said main shaft extending through said extension housing, a combination reverse and first ratio output gear slidably mounted on said main shaft in said extension housing, a countershaft fixed in said main housing and extending into a pocket formed in said extension housing, a drive gear and a second, third and fourth ratio input gear cluster rotatably mounted on said fixed countershaft in said main housing, a first ratio input gear rotatably mounted on said countershaft in said extension housing and connected to said gear cluster, a reverse idler gear shaft rotatably mounted in said extension housing and having a first reverse idler gear formed on the end thereof in said main housing and a second reverse idler gear mounted thereon in said extension housing, a reverse-first shifter device operatively connected to said combination reverse and first gear for permitting alternate slidable engagement of said combination gear with said first ratio input gear and said second reverse idler gear.
Claim 10
Dependent Claim
234 words
For use with a motor vehicle including a clutch mechanism, a multispeed ratio transmission comprising a main housing, a main shaft extending through said housing and operatively connected to said clutch mechanism, an input gear, second, third and fourth ratio output gears secured to said main shaft, a second-third synchronizing device and a fourth-fifth synchronizing device secured to said main shaft for selectively engaging said output gears, an extension housing mounted adjacent said main housing, said main shaft extending through said extension housing, a combination reverse and first ratio output gear slidably mounted on said main shaft in said extension housing, a countershaft fixed in said main housing and extending into a pocket formed in said extension housing, a drive gear and a second, third and fourth ratio input gear cluster rotatably mounted on said fixed countershaft in said main housing, a first ratio input gear rotatably mounted on said countershaft in said extension housing and connected to said gear cluster, a reverse idler gear shaft rotatably mounted in said extension housing and having a first reverse idler gear formed on the end thereof in said main housing and a second reverse idler gear mounted thereon in said extension housing, a reverse-first shifter device operatively connected to said combination reverse and first gear for permitting alternate slidable engagement of said combination gear with said first ratio input gear and said second reverse idler gear.
Claim 11
Dependent Claim
12 words
The transmission described in claim 5, wherein said first gear is nonsynchronized.
Claim 12
Dependent Claim
13 words
The transmission described in claim 5, wherein said first gear is fully synchronized.
Claim 13
Dependent Claim
350 words
For use with a motor vehicle clutch mechanism including a clutch housing, a multispeed ratio transmission comprising a transmission casE mounted on said clutch housing such that the outermost portion of said clutch housing forms the forward wall of said transmission case, first and second openings formed in said outermost portion of said clutch housing, an extension housing mounted on said transmission case such that the outermost portion of said transmission case forms the front wall of said extension housing, first and second openings formed in said outermost portion of said transmission case and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft having a front portion mounted through said first opening in said clutch housing and a rear portion mounted through said first opening in said transmission case, an input gear and second, third and fourth ratio output gears mounted on said rear portion of said main shaft, retaining means for preventing rearward movement of said rear portion of said main shaft, bearing means adjacent the forward end of said rear portion for absorbing the forward thrust of said rear portion, a countershaft mounted in said aligned second openings, a drive gear and second, third and fourth ratio input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, an aperture formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said aperture in said extension housing, an input gear formed on said extension shaft, a third opening formed in said outermost portion of said transmission case, a reverse idler shaft mounted through said third opening, first and second reverse idler gears mounted on said reverse idler shaft, one in said transmission case and the other in said extension housing, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said last-mentioned input gear and said second reverse idler gear.
Claim 14
Dependent Claim
350 words
For use with a motor vehicle clutch mechanism including a clutch housing, a multispeed ratio transmission comprising a transmission casE mounted on said clutch housing such that the outermost portion of said clutch housing forms the forward wall of said transmission case, first and second openings formed in said outermost portion of said clutch housing, an extension housing mounted on said transmission case such that the outermost portion of said transmission case forms the front wall of said extension housing, first and second openings formed in said outermost portion of said transmission case and axially aligned with said first and second openings, respectively, in said clutch housing, a main shaft having a front portion mounted through said first opening in said clutch housing and a rear portion mounted through said first opening in said transmission case, an input gear and second, third and fourth ratio output gears mounted on said rear portion of said main shaft, retaining means for preventing rearward movement of said rear portion of said main shaft, bearing means adjacent the forward end of said rear portion for absorbing the forward thrust of said rear portion, a countershaft mounted in said aligned second openings, a drive gear and second, third and fourth ratio input gears mounted on said countershaft, synchronizing means operatively connected to said input gears for manually selecting a desired gear ratio, an aperture formed in said extension housing and aligned with said aligned second openings, an extension shaft splined at one end to said countershaft and having the other end thereof mounted in said aperture in said extension housing, an input gear formed on said extension shaft, a third opening formed in said outermost portion of said transmission case, a reverse idler shaft mounted through said third opening, first and second reverse idler gears mounted on said reverse idler shaft, one in said transmission case and the other in said extension housing, and a reverse and first ratio duplex output gear mounted on said main shaft in said extension housing for alternately meshing with said last-mentioned input gear and said second reverse idler gear.
Claim 15
Dependent Claim
217 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein axially aligned with said axially aligned second and fourth openings, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein axially aligned with said fifth opening, said first and second solid portions serving to adapt a conventional three-speed transmission for use as a four- and/or five-speed transmission.
Claim 16
Dependent Claim
217 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein axially aligned with said axially aligned second and fourth openings, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein axially aligned with said fifth opening, said first and second solid portions serving to adapt a conventional three-speed transmission for use as a four- and/or five-speed transmission.
Claim 17
Dependent Claim
56 words
The transmission described in claim 9, and a reverse idler extension shaft extending from said reverse idler shaft into said second shaft-supporting pocket, a second reverse idler ear mounted on said reverse idler extension shaft, and a reverse output gear mounted on said mainshaft in said extension housing for meshing with said second reverse idler gear.
Claim 18
Dependent Claim
323 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein, said first shaft-supporting pocket to be axially aligned with said axially aligned second and fourth openings, a first extension shaft adapted to be splined at one end thereof to said countershaft and to have the other end thereof mounted in said first shaft-supporting pocket in said extension housing, a first speed ratio input gear adapted to be mounted on said extension shaft, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a first reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein, said second shaft-supporting pocket to be axially aligned with said fifth opening, a reverse idler extension shaft adapted to extend from said reverse idler shaft into said second shaft-supporting pocket, a second reverse idler gear adapted to be mounted on said reverse idler shaft, and a reverse and first ratio duplex output gear adapted to be mounted on said mainshaft in said extension housing for alternately meshing with said first speed ratio input gear and said second reverse idler gear.
Claim 19
Dependent Claim
323 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein, said first shaft-supporting pocket to be axially aligned with said axially aligned second and fourth openings, a first extension shaft adapted to be splined at one end thereof to said countershaft and to have the other end thereof mounted in said first shaft-supporting pocket in said extension housing, a first speed ratio input gear adapted to be mounted on said extension shaft, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a first reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein, said second shaft-supporting pocket to be axially aligned with said fifth opening, a reverse idler extension shaft adapted to extend from said reverse idler shaft into said second shaft-supporting pocket, a second reverse idler gear adapted to be mounted on said reverse idler shaft, and a reverse and first ratio duplex output gear adapted to be mounted on said mainshaft in said extension housing for alternately meshing with said first speed ratio input gear and said second reverse idler gear.
Claim 20
Dependent Claim
302 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein axially aligned with said axially aligned second and fourth openings, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein axially aligned with said fifth opening, said first and second solid portions serving to adapt a conventional three-speed transmission for use as a four- and/or five-speed transmission, and a reverse idler extension shaft extending from said reverse idler shaft into said second shaft-supporting pocket, a second reverse idler gear mounted on said reverse idler extension shaft, an extension shaft extending from said countershaft into said first shaft-supporting pocket, a first speed ratio input gear mounted on said extension shaft, and a reverse and first ratio duplex output gear mounted on said mainshaft in said extension housing for alternately meshing with said first speed ratio input gear and said second reverse idler gear.
Claim 21
Dependent Claim
302 words
A transmission adaptable for multispeed ratios comprising a die cast clutch housing, a die cast transmission case mounted on said clutch housing, a die cast extension housing mounted on said transmission case, said clutch housing serving as a forward wall of said transmission case and having first and second openings formed therein, said transmission case serving as the front wall of said extension housing and having third and fourth openings formed therein and axially aligned with said first and second openings, respectively, in said clutch housing, a mainshaft mounted through said axially aligned first and third openings, a countershaft mounted in said axially aligned second and fourth openings, a first solid portion formed in said extension housing suitable for the formation of a first shaft-supporting pocket therein axially aligned with said axially aligned second and fourth openings, a fifth opening formed in said transmission case, a reverse idler shaft rotatably mounted in said fifth opening, a reverse idler gear mounted on said reverse idler shaft and operatively connected to said countershaft, a second solid portion formed in said extension housing suitable for the formation of a second shaft-supporting pocket therein axially aligned with said fifth opening, said first and second solid portions serving to adapt a conventional three-speed transmission for use as a four- and/or five-speed transmission, and a reverse idler extension shaft extending from said reverse idler shaft into said second shaft-supporting pocket, a second reverse idler gear mounted on said reverse idler extension shaft, an extension shaft extending from said countershaft into said first shaft-supporting pocket, a first speed ratio input gear mounted on said extension shaft, and a reverse and first ratio duplex output gear mounted on said mainshaft in said extension housing for alternately meshing with said first speed ratio input gear and said second reverse idler gear.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |