US3858455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmissions
Assignee: Doosan Bobcat North America Inc
•
Filing: 1973-08-27
•
Granted: 1975-01-07
•
Expires: 1993-08-27
Abstract
Abstract A family of multispeed constant-mesh-gear reversible transmissions has a basic structure that includes five drivingly connected shafts, with all of these shafts lying in a common plane. A plurality of gear trains selectively drives the output shaft at various speed ratios, and pluralities of clutches are used for connecting several of the shafts and for connecting various ones of the gears to various shafts for conjoint rotation therewith. Several embodiments of connecting means are used for connecting the output shaft with at least one of the several gears.
Inventors
- 👤 Ronald L Sisson
- 👤 James E Shellberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:54
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; F16H2003/0936; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19233; Y10T74/19377; Y10T74/19386; Y10T74/19405
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
297 words
A transmission comprising: a. an input shaft; b. a first gear fixed to said input shaft; c. a first shaft lying in a common plane with said input shaft; d. a second gear journalled for rotation on said first shaft and drivingly connected with said first gear; e. a second shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said second shaft; g. second clutch means for connecting said second gear to said first shaft for conjoint rotation therewith; h. a third gear fixed to said second shaft; i. a fourth gear fixed to said first shaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first and second shafts: k. third clutch means for connecting said fifth gear to one of said first and second shafts for conjoint rotation therewith; l. a third shaft lying in a common plane with said input shaft; m. an output shaft; n. a sixth gear fixed to said first shaft; o. a seventh gear fixed to said third shaft and in mesh with said sixth gear; p. an eighth gear journalled for rotation on said third shaft and in mesh with said fifth gear; q. fourth clutch means for connecting said eighth gear to said third shaft for conjoint rotation therewith; r. a ninth gear journalled for rotation on said third shaft; s. fifth clutch means for connecting said ninth gear to said third shaft for conjoint rotation therewith; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear, with said output shaft being vertically aligned with said input shaft.
Claim 2
Dependent Claim
297 words
A transmission comprising: a. an input shaft; b. a first gear fixed to said input shaft; c. a first shaft lying in a common plane with said input shaft; d. a second gear journalled for rotation on said first shaft and drivingly connected with said first gear; e. a second shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said second shaft; g. second clutch means for connecting said second gear to said first shaft for conjoint rotation therewith; h. a third gear fixed to said second shaft; i. a fourth gear fixed to said first shaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first and second shafts: k. third clutch means for connecting said fifth gear to one of said first and second shafts for conjoint rotation therewith; l. a third shaft lying in a common plane with said input shaft; m. an output shaft; n. a sixth gear fixed to said first shaft; o. a seventh gear fixed to said third shaft and in mesh with said sixth gear; p. an eighth gear journalled for rotation on said third shaft and in mesh with said fifth gear; q. fourth clutch means for connecting said eighth gear to said third shaft for conjoint rotation therewith; r. a ninth gear journalled for rotation on said third shaft; s. fifth clutch means for connecting said ninth gear to said third shaft for conjoint rotation therewith; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear, with said output shaft being vertically aligned with said input shaft.
Claim 3
Dependent Claim
293 words
A transmission comprising: a. an input shaft; b. a first gear fixed to said input shaft; c. a first countershaft vertically aligned with said input shaft; d. a second gear journalled for rotation on said first countershaft and drivingly connected with said first gear; e. a shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said axially aligned shaft; g. second clutch means for connecting said second gear to said first countershaft for conjoint rotation therewith; h. a third gear fixed to said axially aligned shaft; i. a fourth gear fixed to said first countershaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first countershaft and said axially aligned shaft; k. third clutch means for connecting said fifth gear to one of said first countershaft and said axially aligned shaft for conjoint rotation therewith; l. a second countershaft vertically aligned with said first countershaft; m. an output shaft vertically aligned with said second countershaft; n. a sixth gear fixed to said first countershaft; o. a seventh gear fixed to said second countershaft and in mesh with said sixth gear; p. an eighth gear journalled for rotation on said second countershaft and in mesh with said fifth gear; q. fourth clutch means for connecting said eighth gear to said second countershaft for conjoint rotation therewith; r. a ninth gear journalled for rotation on said second countershaft; s. fifth clutch means for connecting said ninth gear to said second countershaft for conjoint rotation therewith; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear.
Claim 4
Dependent Claim
293 words
A transmission comprising: a. an input shaft; b. a first gear fixed to said input shaft; c. a first countershaft vertically aligned with said input shaft; d. a second gear journalled for rotation on said first countershaft and drivingly connected with said first gear; e. a shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said axially aligned shaft; g. second clutch means for connecting said second gear to said first countershaft for conjoint rotation therewith; h. a third gear fixed to said axially aligned shaft; i. a fourth gear fixed to said first countershaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first countershaft and said axially aligned shaft; k. third clutch means for connecting said fifth gear to one of said first countershaft and said axially aligned shaft for conjoint rotation therewith; l. a second countershaft vertically aligned with said first countershaft; m. an output shaft vertically aligned with said second countershaft; n. a sixth gear fixed to said first countershaft; o. a seventh gear fixed to said second countershaft and in mesh with said sixth gear; p. an eighth gear journalled for rotation on said second countershaft and in mesh with said fifth gear; q. fourth clutch means for connecting said eighth gear to said second countershaft for conjoint rotation therewith; r. a ninth gear journalled for rotation on said second countershaft; s. fifth clutch means for connecting said ninth gear to said second countershaft for conjoint rotation therewith; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear.
Claim 5
Dependent Claim
303 words
A multispeed constant-gear-mesh transmission comprising: a. an input shaft; B. a first gear fixed to said input shaft; c. a first countershaft vertically aligned with said input shaft; d. a second gear journalled for rotation on said first countershaft and drivingly connected with said first gear; e. a shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said axially aligned shaft; g. a second clutch means for connecting said second gear to said first countershaft for conjoint rotation therewith; h. a third gear fixed to said axially aligned shaft; i. a fourth gear fixed to said first countershaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first countershaft and said axially aligned shaft; k. third clutch means for connecting said fifth gear to one of said first countershaft and said axially aligned shafts for conjoint rotation therewith; l. a second countershaft vertically aligned with said first countershaft; m. a sixth gear fixed to said first countershaft; n. a seventh gear fixed to said second countershaft and in mesh with said sixth gear; o. an eighth gear journalled for rotation on one of said first and second countershafts and in mesh with said fifth gear; p. fourth clutch means for connecting said eighth gear to one of said first and second countershafts for conjoint rotation therewith; q. a ninth gear journalled for rotation on said second countershaft; r. fifth clutch means for connecting said ninth gear to said second countershaft for conjoint rotation therewith; s. an output shaft vertically aligned with said countershafts; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear.
Claim 6
Dependent Claim
303 words
A multispeed constant-gear-mesh transmission comprising: a. an input shaft; B. a first gear fixed to said input shaft; c. a first countershaft vertically aligned with said input shaft; d. a second gear journalled for rotation on said first countershaft and drivingly connected with said first gear; e. a shaft axially aligned with said input shaft; f. first clutch means for connecting said input shaft with said axially aligned shaft; g. a second clutch means for connecting said second gear to said first countershaft for conjoint rotation therewith; h. a third gear fixed to said axially aligned shaft; i. a fourth gear fixed to said first countershaft and in mesh with said third gear; j. a fifth gear journalled for rotation on one of said first countershaft and said axially aligned shaft; k. third clutch means for connecting said fifth gear to one of said first countershaft and said axially aligned shafts for conjoint rotation therewith; l. a second countershaft vertically aligned with said first countershaft; m. a sixth gear fixed to said first countershaft; n. a seventh gear fixed to said second countershaft and in mesh with said sixth gear; o. an eighth gear journalled for rotation on one of said first and second countershafts and in mesh with said fifth gear; p. fourth clutch means for connecting said eighth gear to one of said first and second countershafts for conjoint rotation therewith; q. a ninth gear journalled for rotation on said second countershaft; r. fifth clutch means for connecting said ninth gear to said second countershaft for conjoint rotation therewith; s. an output shaft vertically aligned with said countershafts; t. a tenth gear fixed to said output shaft and in mesh with said eighth gear; and u. an eleventh gear fixed to said output shaft and in mesh with said ninth gear.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |