US3901518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust seal cover for ball joint
Assignee: Ishikawa Tekko KK
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Filing: 1974-08-26
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Granted: 1975-08-26
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Expires: 1994-08-26
Abstract
Abstract Dust seal cover for a ball joint comprises a generally cylindrical cover body of a gum material having an opening at one end thereof, said opening being of a slightly smaller diameter than that of the socket portion at which said cover body is to be mounted. A ring of resilient material is embedded in the peripheral edge portion of said opening so that the socket portion may be resiliently clamped by the ring. A tapered inner wall portion is formed adjacent to the above peripheral edge portion to sealingly enclose the socket portion when the cover body is mounted on the socket of the ball joint.
Inventors
- 👤 Yasuo Uchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0666; F16C11/0671; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32729
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
394 words
Dust seal cover adapted to be mounted on an outer surface of a socket of a ball joint, comprising a generally cylindrical cover body (22) of a resilient material formed with a large opening (23) at one end thereof having an inner diameter (d1) slightly smaller than the outer diameter of a cover mounting portion (11) of said socket (7), a rigid resilient ring (25) integrally embedded in a radially outwardly extending peripheral edge flange portion (24) at said large opening (23) and having a smaller inner diameter than the outer diameter of said cover mounting portion (11) of said socket (7), a generally cylindrical inner wall portion (27) formed in said cover body (22) connected to said large opening (23) by way of an inwardly tapered inner wall portion (26) so that said cylindrical inner wall portion has an inner diameter (d2) smaller than that of said large diameter (d1), a portion of said cylindrical inner wall portion (27) located opposite to said tapered inner wall portion (26) being converged inwardly and connected to a small opening (29) formed in said cover body (22) at the other end thereof, the junction (32) between the radially outwardly extending peripheral edge flange portion (24) and the cover body (22) lying on a plane containing one end of the tapered inner wall portion (26), and an annular lip edge portion (28) formed inside said cover body (22) at a position in a plane containing the junction between the other end of said inwardly tapered inner wall portion (26) and said cylindrical inner wall portion (27), the inner peripheral surface of said small opening (29) being sealingly and slidably contacted with the outer peripheral surface of a shank (3) of a ball stud (4), the outer surface of the peripheral surface of the peripheral edge (30) of said small opening (29) being sealingly and slidably contacted with the outer surface of a mounting member (9), wherein, upon mounting said cover body (22), said mounting portion (11) of said socket (7) is resiliently clamped by said radially outwardly extending peripheral edge flange portion (24) of said large opening (23) under the influence of said rigid resilient ring (25), while said annular lip edge portion (28) adjacent to said large opening (23) is sealingly pressed against the outer surface of said cover mounting portion (11) of said socket (7).
Claim 2
Dependent Claim
394 words
Dust seal cover adapted to be mounted on an outer surface of a socket of a ball joint, comprising a generally cylindrical cover body (22) of a resilient material formed with a large opening (23) at one end thereof having an inner diameter (d1) slightly smaller than the outer diameter of a cover mounting portion (11) of said socket (7), a rigid resilient ring (25) integrally embedded in a radially outwardly extending peripheral edge flange portion (24) at said large opening (23) and having a smaller inner diameter than the outer diameter of said cover mounting portion (11) of said socket (7), a generally cylindrical inner wall portion (27) formed in said cover body (22) connected to said large opening (23) by way of an inwardly tapered inner wall portion (26) so that said cylindrical inner wall portion has an inner diameter (d2) smaller than that of said large diameter (d1), a portion of said cylindrical inner wall portion (27) located opposite to said tapered inner wall portion (26) being converged inwardly and connected to a small opening (29) formed in said cover body (22) at the other end thereof, the junction (32) between the radially outwardly extending peripheral edge flange portion (24) and the cover body (22) lying on a plane containing one end of the tapered inner wall portion (26), and an annular lip edge portion (28) formed inside said cover body (22) at a position in a plane containing the junction between the other end of said inwardly tapered inner wall portion (26) and said cylindrical inner wall portion (27), the inner peripheral surface of said small opening (29) being sealingly and slidably contacted with the outer peripheral surface of a shank (3) of a ball stud (4), the outer surface of the peripheral surface of the peripheral edge (30) of said small opening (29) being sealingly and slidably contacted with the outer surface of a mounting member (9), wherein, upon mounting said cover body (22), said mounting portion (11) of said socket (7) is resiliently clamped by said radially outwardly extending peripheral edge flange portion (24) of said large opening (23) under the influence of said rigid resilient ring (25), while said annular lip edge portion (28) adjacent to said large opening (23) is sealingly pressed against the outer surface of said cover mounting portion (11) of said socket (7).
Claim 3
Dependent Claim
128 words
Dust seal cover for a ball joint as set forth in claim 1, wherein said cover body (22) has a first thin wall portion (t1) at a substantially mid point thereof, from which point the wall thickness is progressively increased toward said radially outwardly extending peripheral edge flange portion (24) of said large opening (23) and said peripheral edge portion (30) of said small opening (24), the increase in the wall thickness toward said radially outwardly extending peripheral edge flange portion (24) of said large opening (23) attaining a maximum at said lip edge portion (28) and thereafter the wall thickness being decreased progressively to form a second thin wall portion (t2) between said radially outwardly extending peripheral edge flange portion (24) and said lip edge portion (28).
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |