US3880037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary anvil construction
Assignee: Day International Inc
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Filing: 1974-01-07
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Granted: 1975-04-29
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Expires: 1994-01-07
Abstract
Abstract A rotary anvil construction is provided which includes a rotary anvil having an outer substantially cylindrical surface and having a longitudinally extending groove extending inwardly from the surface. A die cutting mat is provided and comprises a main body terminating in substantially identical L-shaped end portions which are received within the groove and each L-shaped portion has a first planar surface including an outermost edge, a second surface arranged transverse the inner edge of the first planar surface, and a third surface extending from the terminal outer edge of the second surface and transverse the second surface. A clamping bar is provided which has at least an outer portion thereof made of a mat-like material similar to the mat and the bar extends the entire distance between the first planar surfaces and has a pair of spaced clamping surface portions each engaging an associated one of the second transverse surfaces. The bar holds the mat against the anvil and has a pair of opposed outer edges each adjoining an outermost edge of an associated first surface.
Inventors
- 👤 John C Duckett
- 👤 Rufus Neal Ensley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:51
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/20; B26D2007/202; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4838; Y10T83/4841; Y10T83/929; Y10T83/9309; Y10T83/9312
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
175 words
In combination: a rotary anvil having an outer substantially cylindrical surface and having a longitudinally extending groove therein extending inwardly from said surface; a die-cutting mat comprising a main body terminating in substantially identical Lshaped end portions which are received within said groove; each L-shaped portion having, a first planar surface including an outermost edge, a second surface arranged transverse the inner edge of said first planar surface, and a third surface extending from the terminal outer edge of said second surface and transverse said second surface; a clamping bar extending the entire distance between said first planar surfaces and having a pair of spaced clamping surface portions each engaging an associated one of said second transverse surfaces, said bar holding said mat against said anvil and having a pair of opposed outer edges each adjoining an outermost edge of an associated first planar surface, said bar having at least an outer portion thereof made of a mat-like material similar to said mat; and means fastening said bar and hence said mat against said anvil.
Claim 2
Dependent Claim
175 words
In combination: a rotary anvil having an outer substantially cylindrical surface and having a longitudinally extending groove therein extending inwardly from said surface; a die-cutting mat comprising a main body terminating in substantially identical Lshaped end portions which are received within said groove; each L-shaped portion having, a first planar surface including an outermost edge, a second surface arranged transverse the inner edge of said first planar surface, and a third surface extending from the terminal outer edge of said second surface and transverse said second surface; a clamping bar extending the entire distance between said first planar surfaces and having a pair of spaced clamping surface portions each engaging an associated one of said second transverse surfaces, said bar holding said mat against said anvil and having a pair of opposed outer edges each adjoining an outermost edge of an associated first planar surface, said bar having at least an outer portion thereof made of a mat-like material similar to said mat; and means fastening said bar and hence said mat against said anvil.
Claim 3
Dependent Claim
45 words
A combination as set forth in claim 1 in which said bar has a pair of oppositely arranged planar surfaces in face-to-face contact with said first planar surfaces and each of said pair of opposed outer edges defines an edge of its associated planar surface.
Claim 4
Dependent Claim
57 words
A combination as set forth in claim 1 in which said second and third surfaces are also planar surfaces, said second planar surface is arranged substantially perpendicular said first planar surface, and said third planar surface is arranged substantially perpendicular to said second planar surface whereby said first and third planar surfaces are approximately in parallel relation.
Claim 5
Dependent Claim
57 words
A combination as set forth in claim 1 in which said clamping bar is a substantially T-shaped bar defined by a transverse arm portion which is supported on a perpendicularly arranged leg portion so as to define said pair of spaced clamping surfaces on the underside of said arm and on opposite sides of said leg portion.
Claim 6
Dependent Claim
53 words
A combination as set forth in claim 4 in which said leg portion of said T-shaped clamping bar has a pair of parallel surfaces defining opposite sides thereof and once said T-shaped clamping bar is fastened into position said pair of parallel surfaces of said leg portion are arranged between said third surfaces.
Claim 7
Dependent Claim
36 words
A combination as set forth in claim 1 in which said clamping bar comprises a T-shaped clamping bar and has an inner portion made of a metallic material with said outer portion thereof being bonded thereagainst.
Claim 8
Dependent Claim
40 words
A combination as set forth in claim 1 in which said clamping bar comprises a T-shaped clamping bar and has an inner portion made of a comparatively hard and high-strength plastic material with said outer portion thereof being bonded thereagainst.
Claim 9
Dependent Claim
32 words
A combination as set forth in claim 1 in which said clamping bar comprises a T-shaped clamping bar and has an inner portion made of the same material as said outer portion.
Claim 10
Dependent Claim
34 words
A combination as set forth in claim 8 in which said clamping bar is made by an extrusion process and said inner portion and outer portion thereof blend smoothly together as a unitary structure.
Claim 11
Dependent Claim
32 words
A combination as set forth in claim 1 in which said groove is a substantially U-shaped groove having a bight and a pair of substantially parallel legs extending from opposite ends thereof.
Claim 12
Dependent Claim
90 words
A combination as set forth in claim 1 in which said fastening means comprises a threaded opening in said anvil, a bore in said bar arranged in aligned relation with said opening, a counterbore in said bar outwardly of and coaxial with said bore and defining a flat annular surface at the outer edge thereof, a bolt having a threaded portion threadedly received in said threaded opening and a head received against said flat annular surface, and a plug made of said mat-like material and being received in said counterbore.
Claim 13
Dependent Claim
66 words
A combination as set forth in claim 4 in which said mat-like material of which said plug is made is a compressible yet resilient material and said plug has an outside diameter which is larger than the corresponding inside diameter of said counterbore whereby said plug is compressed radially inwardly and received within said counterbore so that it is held at least in part by friction.
Claim 14
Dependent Claim
60 words
A combination as set forth in claim 4 in which at least one of said threaded bolt and plug is comprised of a magnetic material and the other of said bolt and plug is comprised of a material capable of being attracted by said magnetic material whereby said plug is at least partially held within said counterbore by magnetic attraction.
Claim 15
Dependent Claim
52 words
A combination as set forth in claim 4 in which said bolt has at least a head thereon made of a magnetic material and said plug is comprised of a material which is attracted by said magnetic material whereby said plug is at least partially held within said counterbore by magnetic attraction.
Claim 16
Dependent Claim
35 words
A combination as set forth in claim 14 in which said material which is attracted by said magnetic means comprises a flat strip made of a ferrous metal bonded to the underside of said plug.
Claim 17
Dependent Claim
30 words
A combination as set forth in claim 14 in which said material which is attracted by said magnetic material comprises a plurality of magnetic particles randomly dispersed throughout said plug.
Claim 18
Dependent Claim
30 words
A combination as set forth in claim 14 in which said head has a substantial vertical height thereby providing a substantial volume of magnetic material to assure adequate magnetic attraction.
Claim 19
Dependent Claim
100 words
A combination as set forth in claim 4 in which said fastening means comprises another threaded opening in said anvil, another bore in said bar arranged in aligned relation with said other opening, another counterbore in said bar outwardly and coaxial with said other bore and defining another flat annular surface at the outer edge of said outer bore, another bolt having a threaded portion threadedly received in said other threaded opening, said other bolt having a head received against said other flat annular surface, and another plug made of said mat-like material and being received in said other counterbore.
Claim 20
Dependent Claim
56 words
A combination as set forth in claim 18 in which each of said bolts has at least a head thereon made of a magnetic material and each of said plugs is comprised of a material which is attracted by said magnetic material whereby each plug is at least partially held within its counterbore by magnetic attraction.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |