Patent US3802289A successfully refreshed from Google Patents.
US3802289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transfer device with removably mounted cover
Assignee: Caterpillar Inc
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Filing: 1973-02-08
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Granted: 1974-04-09
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Expires: 1993-02-08
Abstract
Abstract A power transfer device includes a pair of casing body portions which together form a casing having a plurality of shafts and gears therein which make up a gear train. The opposite ends of each shaft are rotatably supported relative to the respective casing body portions by bearings. One of the casing body portions defines a plurality of apertures, one aperture positioned adjacent an end of each shaft. A plurality of caps normally are fixed to these apertures to close the casing, but upon removal of these caps, a bolt may be applied through each aperture and threaded into a tapped hole in the end of each shaft, to fix each shaft relative to that casing body portion. Upon application of such bolts, the pair of casing body portions may be parted, it meanwhile being insured that the shafts are held in properly aligned position by such bolts upon such parting of the casing body portions.
Inventors
- 👤 M Cheek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:57
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/021; F16H2057/02039; F16H2057/02043; F16H2057/02056; F16H57/023; F16H2057/0235; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19637; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
147 words
A power transfer device comprising: a casing comprising first and second casing body portions; means for removably securing the first and second casing body portions together; a plurality of shafts associated with the casing, each having one end rotatably supported relative to the first casing body portion and the other end rotatably supported relative to the second casing body portion; a plurality of gears associated with the plurality of shafts and interconnected to define a gear train; and means for selectively fixing at least one of the shafts relative to the first casing body portion, so that said shaft (i) remains fixed relative to the first casing body portion upon removal of the first casing body portion from the second casing body portion, and (ii) is removed from the second casing body portion upon removal of the first casing body portion from the second casing body portion.
Claim 2
Dependent Claim
147 words
A power transfer device comprising: a casing comprising first and second casing body portions; means for removably securing the first and second casing body portions together; a plurality of shafts associated with the casing, each having one end rotatably supported relative to the first casing body portion and the other end rotatably supported relative to the second casing body portion; a plurality of gears associated with the plurality of shafts and interconnected to define a gear train; and means for selectively fixing at least one of the shafts relative to the first casing body portion, so that said shaft (i) remains fixed relative to the first casing body portion upon removal of the first casing body portion from the second casing body portion, and (ii) is removed from the second casing body portion upon removal of the first casing body portion from the second casing body portion.
Claim 3
Dependent Claim
75 words
The power transfer device of claim 1 and further comprising means for selectively fixing each shaft relative to the first casing body portion, so that each shaft remains fixed relative to the first casing body portion upon removal of the first casing body portion from the second casing body portion, whereby each shaft is removed from the second casing body portion upon removal of the first casing body portion from the second casing body portion.
Claim 4
Dependent Claim
85 words
The power transfer device of claim 2 wherein each shaft is fixed relative to the first casing body portion in a position generally the same as its position relative to the first caSing body portion when the first and second casing body portions are secured together, and each shaft has one end rotatably supported relative to the first casing body portion and the other end rotatably supported relative to the second casing body portion when the first and second casing body portions are secured together.
Claim 5
Dependent Claim
49 words
The power transfer device of claim 3 wherein the means for selectively fixing each shaft relative to the first casing body portion comprise a bolt positionable in an aperture in the first casing body portion and threadably connectable with a threaded bore defined by an end of that shaft.
Claim 6
Dependent Claim
40 words
The power transfer device of claim 4 and further comprising cap means normally fixed to the first casing body portion to close each aperture in the first casing body portion, and removable therefrom to allow positioning of said bolt therein.
Claim 7
Dependent Claim
52 words
The power transfer device of claim 5 wherein the shafts are disposed generally parallel to each other when the shaft ends are rotatably supported relative to the first and second casing body portions, and are held substantially in such positions when the shafts are fixed relative to the first casing body portion.
References Cited (Backward Citations)
US3214989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |