US4569614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Individual
•
Filing: 1982-06-30
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Granted: 1986-02-11
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Expires: 2002-06-30
Abstract
Abstract A coupling for fastening two members whose opposed faces keep an equal gap and are free to relatively displace to the left or right, wherein a wedge inclining with an angle narrower than the friction angle to osculate each of the opposing face of the members, is capable of wedging the opposing faces by relative displacement of the members toward the rising side of the wedge. The coupling is arranged on the left and right respectively in the direction of relative displacement of the members, so that two members can be coupled plainly, rigidly and free from lowering of the axis strength, permitting an easy phase adjustment or dividing or the like.
Inventors
- 👤 Yukio Yamauchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:52
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/093; F16D1/094; F16D1/0829; F16D1/0835; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7009; Y10T403/7011; Y10T403/7013; Y10T403/7047; Y10T403/7061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A coupling for fastening two members having opposing faces kept at an equal gap and free to relatively displace to the left or right, characterized in that wedge parts inclining at an angel narrower than the friction angle to osculate each of said opposing faces of said members, are capable of wedging said opposing faces by relative displacement of said respective members toward the rising side of said wedge parts, arranged on the left and right respectively in the direction of relative displacement of said respective members, said wedge parts being connected by connecting portions, and wherein said wedge parts are U-shaped and comprise inclining pieces extending inward in a radial direction with a narrow gradient angle, provided on the both sides of a upper piece of said U-shaped part, said wedge being made of a spring steel plate.
Claim 2
Dependent Claim
139 words
A coupling for fastening two members having opposing faces kept at an equal gap and free to relatively displace to the left or right, characterized in that wedge parts inclining at an angel narrower than the friction angle to osculate each of said opposing faces of said members, are capable of wedging said opposing faces by relative displacement of said respective members toward the rising side of said wedge parts, arranged on the left and right respectively in the direction of relative displacement of said respective members, said wedge parts being connected by connecting portions, and wherein said wedge parts are U-shaped and comprise inclining pieces extending inward in a radial direction with a narrow gradient angle, provided on the both sides of a upper piece of said U-shaped part, said wedge being made of a spring steel plate.
References Cited (Backward Citations)
US3017210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |