US3883940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fastening a holding bar on a printing blanket
Assignee: Day International Corp
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Filing: 1974-07-11
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Granted: 1975-05-20
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Expires: 1994-07-11
Abstract
Abstract An apparatus for fastening a holding bar on a printing blanket is disclosed, the holding bar having a bight and a pair of diverging legs extending outwardly from opposite ends of the bight. The apparatus comprises an anvil, hammer means, fastening means comprising a cutout in the anvil defining a first clamping surface and a clamping member moveable toward and away from the cutout and having a second clamping surface, the surfaces being adapted to engage and clamp the holding bar. A positioning means is provided for positioning and holding the blanket against the bight during deformation of a leg of the holding bar by the cooperating hammer-anvil means.
Inventors
- 👤 William T Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:29
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B23; B23P; B23P19/00; B41; B41F; B41F30/00; B41F30/04; B41N; B41N10/00; B41N10/02; B41N10/06; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44906; Y10T24/44915; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53787; Y10T29/53791
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
An apparatus for fastening a holding bar on a printing blanket; said holding bar having a bight and a pair of diverging legs extending outwardly from opposite ends of said bight; said apparatus comprising; an anvil; hammer means; fastening means for detachably fastening said holding bar to said anvil; said fastening means comprising, a cutout in said anvil defining a clamping surface, a clamping member which is movable toward and away from said cutout and having a cooperating clamping surface, said clamping surfaces being adapted to engage the outside surface of said bight and the terminal end of one of said legs respectively to clamp said holding bar against said anvil and thus enable a terminal end of said blanket to be urged between said diverging legs and against said bight; and positioning means for positioning and holding said blanket to enable said other leg to be engaged by said hammer means to deform said leg so that said legs are arranged substantially parallel with said projections piercing said blanket to fix said holding bar firmly in position.
Claim 2
Independent Claim
178 words
An apparatus for fastening a holding bar on a printing blanket; said holding bar having a bight and a pair of diverging legs extending outwardly from opposite ends of said bight; said apparatus comprising; an anvil; hammer means; fastening means for detachably fastening said holding bar to said anvil; said fastening means comprising, a cutout in said anvil defining a clamping surface, a clamping member which is movable toward and away from said cutout and having a cooperating clamping surface, said clamping surfaces being adapted to engage the outside surface of said bight and the terminal end of one of said legs respectively to clamp said holding bar against said anvil and thus enable a terminal end of said blanket to be urged between said diverging legs and against said bight; and positioning means for positioning and holding said blanket to enable said other leg to be engaged by said hammer means to deform said leg so that said legs are arranged substantially parallel with said projections piercing said blanket to fix said holding bar firmly in position.
Claim 3
Dependent Claim
39 words
An apparatus as set forth in claim 1 in which said anvil has guide means and said hammer means has cooperating guide means, said guide means serving to guide said hammer means as it is urged against said anvil.
Claim 4
Dependent Claim
26 words
An apparatus as set forth in claim 1 in which said fastening means comprises means for moving said clamping member toward and away from said anvil.
Claim 5
Dependent Claim
56 words
An apparatus as set forth in claim 3 in which said moving means comprises a threaded member having a head portion engaging said clamping member and extending through a cooperating bore in said anvil and a threaded nut threadedly engaged on said threaded member and engaging said anvil to pull said clamping member toward said anvil.
Claim 6
Dependent Claim
53 words
An apparatus as set forth in claim 1 in which said positioning means comprises a hold-down member and a back-up block which are movable in a precise manner with said blanket clamped therebetween to thereby enable precise positioning of said terminal end of said blanket between said diverging lEgs and against said bight.
Claim 7
Dependent Claim
33 words
An apparatus as set forth in claim 1 and further comprising means supporting a roll of blanket material for unwinding rotation and means for cutting said blanket material to define said printing blanket.
References Cited (Backward Citations)
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Cited
US2484398A
Cited
US2741765A
Cited
US3520046A
Cited
US3706121A
Cited
US3675573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |