Patent US4149427A successfully refreshed from Google Patents.
US4149427A
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Chain tensioner
Assignee: BorgWarner Automotive Transmission and Engine Component Corp
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Filing: 1977-11-07
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Granted: 1979-04-17
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Expires: 1997-11-07
Abstract
Abstract A chain tensioner and the like for use with an endless chain constructed of a plurality of joined body links and flanking side links which is adapted to mesh with spaced sprockets. The side links have portions which extend radially outwardly and define a channel with the body links. An endless, flexible member is received in the channel having a length no greater than the initial length of the belt.
Inventors
- 👤 Timothy J. Ledvina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:18
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A chain tensioner and the like for use with an endless chain adapted to mesh with space sprockets and constructed of a plurality of joined body links and flanking side links, said side links having portions extending radially outwardly of said body links to define a channel with said body links and comprising an endless flexible member received in said channel having a length no greater than the initial length of said chain.
Claim 2
Dependent Claim
73 words
A chain tensioner and the like for use with an endless chain adapted to mesh with space sprockets and constructed of a plurality of joined body links and flanking side links, said side links having portions extending radially outwardly of said body links to define a channel with said body links and comprising an endless flexible member received in said channel having a length no greater than the initial length of said chain.
Claim 3
Dependent Claim
17 words
A chain tensioner as recited in claim 1, wherein said endless flexible member comprises a plastic member.
Claim 4
Dependent Claim
18 words
A chain tensioner as recited in claim 1, wherein said endless flexible member comprises a belt or band.
Claim 5
Dependent Claim
21 words
A chain tensioner as recited in claim 1, wherein said endless flexible member comprises at least one rod or wire-like member.
Claim 6
Dependent Claim
18 words
A chain tensioner as recited in claim 1, wherein said endless flexible member comprises a substantially inelastic member.
Claim 7
Dependent Claim
18 words
A chain tensioner as recited in claim 5, wherein said substantially inelastic member comprises a belt or band.
Claim 8
Dependent Claim
23 words
A chain tensioner as recited in claim 6, in which said belt comprises a plurality of tension members encased in an elastomer material.
Claim 9
Dependent Claim
24 words
A chain tensioner as recited in claim 7, in which said belt also comprises a nylon on at least one face of said belt.
Claim 10
Dependent Claim
21 words
A chain tensioner as recited in claim 5, wherein said substantially inelastic member comprises at least one rod or wire-like member.
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) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |