Patent US4030713A successfully refreshed from Google Patents.
US4030713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle suspension device
Assignee: Tenneco Automotive Inc
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Filing: 1975-01-20
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Granted: 1977-06-21
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Expires: 1995-01-20
Abstract
Abstract A vehicle suspension device comprising a telescopic shock absorber including an elongated tubular housing, a piston reciprocable within the housing and connected to one end of a piston rod extending axially outwardly from one end of the housing, a tubular dirt shield supported on one end of the piston rod and extending coaxially of the rod and the housing, a helical coil spring extending coaxially of the housing and the dirt shield with the dirt shield being disposed entirely within the confines of the coil spring, and first and second spring supports located on the dirt shield and the exterior of the housing for operatively supporting the coil spring in its proper position around the shock absorber.
Inventors
- 👤 Dale A. Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:02
CPC Classifications
B; B60; B60G; B60G15/00; B60G15/02; B60G15/06; B60G15/062; B60G15/063; F; F16; F16F; F16F9/00; F16F9/32; F16F9/38; B60G2202/00; B60G2202/30; B60G2202/31; B60G2202/312; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/124; B60G2204/1242
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
316 words
A vehicle suspension device comprising, a telescopic shock absorber including an elongated tubular housing, a piston reciprocally disposed within said housing and connected to one end of a piston rod extending axially outwardly from one end of said housing, attachment means on the outer end of said piston rod and one end of said housing for securing said device to the sprung and upsprung portions of an associated vehicle, a tubular dirt shield supported on said one end of said piston rod and extending coaxially of said rod and said housing, said dirt shield being larger in diameter than said housing and adpated to telescopically receive the adjacent end of said housing therewithin, said dirt shield including a generally tubular-shaped dirt shield member and a cap secured to said piston rod and said dirt shield member, said dirt shield member being formed with a radially outwardly extending shoulder adapted to operatively support one of said spring support means, a helical coil spring extending coaxially of said housing and said dirt shield, with said dirt shield being disposed substantially entirely within said coil spring, and first and second spring support means for operatively supporting said spring on said shock absorber, one of said spring support means comprising an annular spring engaging member having an axially extending portion arranged coaxially of said shock absorber and a radially outwardly extending flange portion and adapted to have one axial end of said spring bear thereagainst, said one support means also comprising first and second circumferentially extending members disposed at least in part between the outer periphery of said shock absorber and the inner periphery of said axial portion of said spring engaging member, said circumferentially extending members each having radially outwardly projecting areas adapted to nestingly receive a radially outwardly projecting portion on said shock absorber and thereby at least in part support said annular member upon said shock absorber.
Claim 2
Dependent Claim
316 words
A vehicle suspension device comprising, a telescopic shock absorber including an elongated tubular housing, a piston reciprocally disposed within said housing and connected to one end of a piston rod extending axially outwardly from one end of said housing, attachment means on the outer end of said piston rod and one end of said housing for securing said device to the sprung and upsprung portions of an associated vehicle, a tubular dirt shield supported on said one end of said piston rod and extending coaxially of said rod and said housing, said dirt shield being larger in diameter than said housing and adpated to telescopically receive the adjacent end of said housing therewithin, said dirt shield including a generally tubular-shaped dirt shield member and a cap secured to said piston rod and said dirt shield member, said dirt shield member being formed with a radially outwardly extending shoulder adapted to operatively support one of said spring support means, a helical coil spring extending coaxially of said housing and said dirt shield, with said dirt shield being disposed substantially entirely within said coil spring, and first and second spring support means for operatively supporting said spring on said shock absorber, one of said spring support means comprising an annular spring engaging member having an axially extending portion arranged coaxially of said shock absorber and a radially outwardly extending flange portion and adapted to have one axial end of said spring bear thereagainst, said one support means also comprising first and second circumferentially extending members disposed at least in part between the outer periphery of said shock absorber and the inner periphery of said axial portion of said spring engaging member, said circumferentially extending members each having radially outwardly projecting areas adapted to nestingly receive a radially outwardly projecting portion on said shock absorber and thereby at least in part support said annular member upon said shock absorber.
Claim 3
Dependent Claim
30 words
The invention as set forth in claim 1 which includes a second radially outwardly extending shoulder on said housing adapted to operatively support the other of said spring support means.
Claim 4
Dependent Claim
33 words
The invention as set forth in claim 1 wherein said first and second circumferentially extending members are resiliently urged into engagement with said projecting portion of said shock absorber by a coil spring.
Claim 5
Dependent Claim
69 words
The invention as set forth in claim 1 which includes an insulating sleeve extending around the outer periphery of said dirt shield, and wherein said coil spring is of the variable rate type and includes a greater number of convolutions at one axial portion thereof than at another axial portion thereof, and wherein said greater number of convolutions are spaced axially away from said dirt shield and said sleeve.
Claim 6
Dependent Claim
22 words
The invention as set forth in claim 1 wherein each of said circumferentially extending members extends approximately 180° around said shock absorber.
Claim 7
Dependent Claim
22 words
The invention as set forth in claim 1 wherein said one support means comprises the support means associated with said tubular housing.
Claim 8
Dependent Claim
60 words
The invention as set forth in claim 1 wherein the inner periphery of said annular portion of said spring engaging member is larger in diameter than the outer periphery of said outwardly projecting portion of said shock absorber and smaller in diameter than the outer periphery of said circumferentially extending members when said members are mounted upon said shock absorber.
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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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |