US3944196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recoil spring housing assembly
Assignee: Caterpillar Inc
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Filing: 1974-05-24
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Granted: 1976-03-16
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Expires: 1994-05-24
Abstract
Abstract A recoil assembly for track type vehicle includes a housing having a preloaded spring assembly mounted therein. The housing is an open sided housing having a pair of ends with aligned apertures formed therein. The spring assembly includes a pair of spaced apart seat members confining a pair of compression springs therebetween with adjustable means in between the seat members for compressing the spring. One of the seat members includes a projection extending into the aperture at one end of the housing and the other seat includes means receiving the extension of a bushing extending through the other aperture. This bushing and aperture arrangement retains the spring assembly within the housing. The open side of the housing is provided with a fixed bar and a removable bar for removably confining the spring within the housing in a functional position.
Inventors
- 👤 Glen E. Schwartzkopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:05
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/30; F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/128
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
209 words
Track recoil mechanism comprising: an elongated unitary housing having an axis and a pair of spaced apart end walls connected a fixed distance apart along said axis by side wall means including a pair of flanges for securing said housing between a pair of spaced apart horizontally extending parallel side rails; aligned apertures formed in said end walls along said axis; spring retainer means detachably mounted in said housing and including a pair of springs mounted therein, said retainer means comprising first and second spaced apart annular spring seat members interconnected by adjustable means for precompressing said springs independent of said end walls for placement between said end walls; said end walls being spaced a predetermined fixed distance apart for establishing a pretension in said springs when said spring seat members engage and are confined by said end walls; said first spring seat member including pilot means extending into one of said apertures for retaining said assembly in place; the second of said seat members having a cupshaped portion opening toward the other of said apertures for receiving an idler rod of a yoke assembly extending through said aperture; and, a sleeve extending through said aperture and engaging said cup portion for retaining same in place in said housing.
Claim 2
Dependent Claim
209 words
Track recoil mechanism comprising: an elongated unitary housing having an axis and a pair of spaced apart end walls connected a fixed distance apart along said axis by side wall means including a pair of flanges for securing said housing between a pair of spaced apart horizontally extending parallel side rails; aligned apertures formed in said end walls along said axis; spring retainer means detachably mounted in said housing and including a pair of springs mounted therein, said retainer means comprising first and second spaced apart annular spring seat members interconnected by adjustable means for precompressing said springs independent of said end walls for placement between said end walls; said end walls being spaced a predetermined fixed distance apart for establishing a pretension in said springs when said spring seat members engage and are confined by said end walls; said first spring seat member including pilot means extending into one of said apertures for retaining said assembly in place; the second of said seat members having a cupshaped portion opening toward the other of said apertures for receiving an idler rod of a yoke assembly extending through said aperture; and, a sleeve extending through said aperture and engaging said cup portion for retaining same in place in said housing.
Claim 3
Dependent Claim
28 words
The recoil mechanism of claim 1 wherein said second seat member includes a beveled portion around the rim of said cup for receiving an extension of said sleeve.
Claim 4
Dependent Claim
43 words
The recoil mechanism of claim 2 comprising guide means including a fixed bar and removable bar spaced apart and extending along said axis between said end walls defining an open side of said housing, and for guiding said spring for preventing bowing thereof.
Claim 5
Dependent Claim
22 words
The recoil mechanism of claim 3 wherein said housing means is mounted between a pair of parallel disposed horizontally extending side rails.
Claim 6
Dependent Claim
39 words
The recoil mechanism of claim 4 wherein said adjusting means includes an elongated rod extending between said seat members; and means threadably engaging one end of said rod biasing one of said seats toward the other of said seats.
Claim 7
Dependent Claim
16 words
The recoil mechanism of claim 5 including a sleeve surrounding said rod between said seat members.
References Cited (Backward Citations)
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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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |