US4194413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain guard and methods of making and using the same
Assignee: Individual
•
Filing: 1977-09-16
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Granted: 1980-03-25
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Expires: 1997-09-16
Abstract
Abstract The present invention relates to a chain guard for a chain which is conventionally used as a means for transmitting power and typically includes individual roller link pairs coupled together by pin links, said guard consisting of an elongated flexible elastic member with its ends secured together forming a loop and provided with a chamber which opens inwardly of the loop and elongated slots provided in the chamber wall and disposed to accept the pin links and provided with lubricant storing means within the chamber.
Inventors
- 👤 Bernhard K. Hentze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:03
CPC Classifications
B; B62; B62J; B62J31/00; B62J13/00; B62J13/04; F; F16; F16P; F16P1/00; F16P1/02; B62M; B62M9/00; B62M2009/007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A chain guard for use with a chain drive provided with roller links secured together by pin links provided with pins comprising, an elongated elastic and flexible tubular element with its ends secured together to form a loop, said element provided with a channel opening inwardly of said loop and communicating with the interior space of the tubular element, thereby providing a "U" shaped cross section to said elongated element, the inner surface of said element beveled and a pair of arcuate elongated channels provided on the interior walls of said element, said arcuate elongated channels having a width substantially less than the length of a leg of "U" shaped cross section, and disposed to accept said pins from said pin links.
Claim 2
Dependent Claim
122 words
A chain guard for use with a chain drive provided with roller links secured together by pin links provided with pins comprising, an elongated elastic and flexible tubular element with its ends secured together to form a loop, said element provided with a channel opening inwardly of said loop and communicating with the interior space of the tubular element, thereby providing a "U" shaped cross section to said elongated element, the inner surface of said element beveled and a pair of arcuate elongated channels provided on the interior walls of said element, said arcuate elongated channels having a width substantially less than the length of a leg of "U" shaped cross section, and disposed to accept said pins from said pin links.
Claim 3
Dependent Claim
23 words
A chain guard as described in claim 1, in combination with lubricant retention means operably mounted on the interior wall of said element.
Claim 4
Dependent Claim
28 words
A chain guard as described in claim 2 wherein said lubricant retention means comprises an elongated sponge element operably secured to the inner surface of said elongated element.
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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) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |