US3693856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable clamp for a driving member of a strip-like medium
Assignee: Unisys Corp
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Filing: 1971-01-04
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Granted: 1972-09-26
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Expires: 1991-01-04
Abstract
Abstract A device for releasably clamping a driving member of a striplike medium in a desired transverse position with respect to a feed direction where the driving member is axially slidable along a transverse shaft. A pivotal clamping member with a friction surface abuttable against the shaft is biased in abutment therewith by a resilient biasing means. Pivotal displacement of the clamping member is opposition to the biasing means serves to free the driving member for axial adjustment along the shaft.
Inventors
- 👤 Joseph W Funk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:24
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/26; B41J11/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
In combination with apparatus for feeding a strip-like medium, said apparatus having a strip driving member axially slidable upon a shaft disposed transversely with respect to the direction of feed, a device for releaseably clamping said strip driving member to said shaft against such slidable movement, said device comprising: a supporting plate fixed to said strip driving member, a hinged cover guide mounted on said supporting plate in cooperating relationship with said strip-like medium, a clamping member pivotally mounted on said supporting plate for pivotal motion in a plane substantially perpendicular with respect to the axis of said shaft, said clamping member having a friction surface abuttable with said shaft for frictionally restraining the axial movement of said driving member along said shaft, and having also a guideway engaged by a guide pin fixed to said supporting plate for guiding the pivotal displacement of said clamping member and for angularly limiting such motion, and means for resiliently biasing said clamping member pivotally into firm abutment with said shaft, whereby pivotal displacement of said clamping member in opposition to said resilient biasing means frees said driving member for transverse adjustment to any axial position on said shaft.
Claim 2
Dependent Claim
196 words
In combination with apparatus for feeding a strip-like medium, said apparatus having a strip driving member axially slidable upon a shaft disposed transversely with respect to the direction of feed, a device for releaseably clamping said strip driving member to said shaft against such slidable movement, said device comprising: a supporting plate fixed to said strip driving member, a hinged cover guide mounted on said supporting plate in cooperating relationship with said strip-like medium, a clamping member pivotally mounted on said supporting plate for pivotal motion in a plane substantially perpendicular with respect to the axis of said shaft, said clamping member having a friction surface abuttable with said shaft for frictionally restraining the axial movement of said driving member along said shaft, and having also a guideway engaged by a guide pin fixed to said supporting plate for guiding the pivotal displacement of said clamping member and for angularly limiting such motion, and means for resiliently biasing said clamping member pivotally into firm abutment with said shaft, whereby pivotal displacement of said clamping member in opposition to said resilient biasing means frees said driving member for transverse adjustment to any axial position on said shaft.
Claim 3
Dependent Claim
37 words
A device as defined by claim 1, wherein said biasing means is a helical compression spring cooperably disposed between a horizontal surface of said pivotal clamping member and a horizontal extending ledge formed in said supporting plate.
Claim 4
Dependent Claim
40 words
A device as defined by claim 1, wherein said friction surface is a pad bonded to said clamping member, said pad being composed of a resilient material having a relatively high coefficient of friction with the material of said shaft.
Claim 5
Dependent Claim
14 words
A device as defined by claim 3, wherein said pad is composed of neoprene.
Claim 6
Dependent Claim
87 words
A device as defined by claim 1, wherein said clamping member has a raised portion disposed apart from the pivot point on the opposite side of the shaft therefrom, and wherein said hinged cover guide comprises an angularly disposed clamp engaging extension cooperable with said raised portion of said clamping member whereby the application of a manual force to said raised portiOn or the raising of said hinged cover guide is effective for applying a pivoting force to said clamping member in opposition to said biasing means.
References Cited (Backward Citations)
US2630901A
Cited
US2893275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |