Patent US3834639A successfully refreshed from Google Patents.
US3834639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mount for cylindrical roll
Assignee: Individual
•
Filing: 1973-04-13
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Granted: 1974-09-10
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Expires: 1993-04-13
Abstract
Abstract Mounting structure for each end of a cylindrical roll, such as a length of photographic film wound on a central, tubular core of a penetrable material, such as cardboard or the like. The structure comprises a generally circular flat plate having a central, circular projection on one face thereof. The projection is receivable within one end of the core and has lock means thereon accessible from the opposite face of the plate for releasably coupling the projection to the core. The plate, when attached to one end of the roll, can be supported on roller means, thereby allowing the roll to rotate about its central axis.
Inventors
- 👤 W Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:31
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H75/18; B65H75/22; B65H75/2245; B65H75/2254; B65H75/2263; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/22; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/511; B65H2701/5112; B65H2701/515; B65H2701/5152; B65H2701/51524; G03B2217/00; G03B2217/26; G03B2217/261
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
117 words
A mount for a roll having a tubular, open end core of penetrable material comprising: a generally flat plate having a pair of opposed faces and a circular outer periphery, said plate having a projection secured to one face thereof; lock structure means mounting said lock structure on the projection in spaced relationship to said plate for movement into penetrating relationship to the core of said roll when said projection is inserted into one end of said core to thereby releasably couple the plate to said roll; and means accessible from the opposite face of said plate for moving said lock structure to cause the same to move into and out of penetrating relationship to said core.
Claim 2
Dependent Claim
117 words
A mount for a roll having a tubular, open end core of penetrable material comprising: a generally flat plate having a pair of opposed faces and a circular outer periphery, said plate having a projection secured to one face thereof; lock structure means mounting said lock structure on the projection in spaced relationship to said plate for movement into penetrating relationship to the core of said roll when said projection is inserted into one end of said core to thereby releasably couple the plate to said roll; and means accessible from the opposite face of said plate for moving said lock structure to cause the same to move into and out of penetrating relationship to said core.
Claim 3
Dependent Claim
39 words
A mount as set forth in claim 1, wherein said projection has a normally innermost face remote from the plate, said lock structure being mounted on said face near the outer periphery of the projection for rotation relative thereto.
Claim 4
Dependent Claim
47 words
A mount as set forth in claim 2, wherein said lock structure comprises a pair of spaced lock members rotatably mounted on said inner face, each lock member having a shaft rigid thereto and extending through the projection and the plate, the shafts defining said moving means.
Claim 5
Dependent Claim
44 words
A mount as set forth in claim 3, wherein each lock member has a pair of beveled, outer, peripheral, arcuate, relatively convergent surfaces defining an arcuate knife edge, said edge being movable into the core as the member is rotated relative to the projection.
Claim 6
Dependent Claim
19 words
A mount as set forth in claim 4, wherein a portion of each knife edge defines a screw flight.
Claim 7
Dependent Claim
60 words
A mount as set forth in claim 4, wherein the knife edge has a pair of opposed ends, the portion of each lock member between the ends of the knife edge thereof and remote from said edge having a transverse dimension permitting the corresponding projection to be inserted in and removed from said core without interference by said lock means.
Claim 8
Dependent Claim
61 words
A mount as set forth in claim 1, wherein the projection includes a pair of adjacent circular sections, one of the sections having a diameter greater than the other section to present an annular, flat shoulder at the junction therebetween, the shoulder being movable into engagement with the corresponding end face of the core as the lock means penetrates the core.
Claim 9
Dependent Claim
103 words
A mount as set forth in claim 1, wherein the diameter of the plate is greater than the diamEter of the roll, the projection having a pair of adjacent circular sections, one of the sections having a diameter less than the other section, said one section adapted to be inserted into an end of the core, the other section having a diameter greater than the inside diameter of the core and provided with an annular, outer peripheral face defining a shoulder engageable with the adjacent end face of the core, said other section being rigidly secured to said one face of the plate.
Claim 10
Dependent Claim
35 words
A mount as set forth in claim 1, wherein said projection has a circular outer peripheral surface concentric to said outer periphery of the plate, said lock means being adjacent to said outer peripheral surface.
Claim 11
Dependent Claim
132 words
A roll assembly comprising: a tubular, open end core of penetrable material; a flexible web wound on the core to form a roll; and a pair of mounts for respective ends of the roll, each mount including a rigid, circular plate having a pair of opposed faces, a circular outer periphery, and a circular projection on one face thereof with said projection being concentric to said outer periphery, means mounted on the projection for movement into penetrating relationship to the core when the corresponding projection is inserted within one end thereof, and means accessible from a location near the opposite face of the plate for controlling the movement of the lock means thereof, the diameters of the plates being substantially equal to each other and being greater than that of said roll.
Claim 12
Dependent Claim
132 words
A roll assembly comprising: a tubular, open end core of penetrable material; a flexible web wound on the core to form a roll; and a pair of mounts for respective ends of the roll, each mount including a rigid, circular plate having a pair of opposed faces, a circular outer periphery, and a circular projection on one face thereof with said projection being concentric to said outer periphery, means mounted on the projection for movement into penetrating relationship to the core when the corresponding projection is inserted within one end thereof, and means accessible from a location near the opposite face of the plate for controlling the movement of the lock means thereof, the diameters of the plates being substantially equal to each other and being greater than that of said roll.
Claim 13
Dependent Claim
85 words
A roll assembly as set forth in claim 10, wherein the lock means of each mount comprises a pair of spaced locking members rotatably mounted on the corresponding projection, said control means including a shaft for each locking member, respectively, each shaft extending through the plate and the projection being rotatable relative thereto, and rigidly connected to the coresponding member, the outer end of each shaft adapted to be rotated to thereby rotate the corresponding member into and out of penetrating relationship to the core.
Claim 14
Dependent Claim
31 words
A roll assembly as set forth in claim 11, wherein each locking member has an outer peripheral knife edge, at least one portion of the knife edge defining a screw flight.
Claim 15
Dependent Claim
124 words
A mount for a roll having an open end comprising: a mounting plate; means on one face of the plate for forming a projection thereon, said projection adapted to be inserted into said open end of the roll; a pair of locking members, each member having an arcuate knife edge for penetrating the inner surface of the roll as the member is shifted relative to the projection, a portion of said knife edge forming a screw flight; and means mounting said locking members on said projection at spaced locations thereon for movement relative thereto into engagement with the roll to penetrate the inner surface thereof and to releasably lock the projection and thereby said plate to the roll when the projection is inserted therein.
Claim 16
Dependent Claim
124 words
A mount for a roll having an open end comprising: a mounting plate; means on one face of the plate for forming a projection thereon, said projection adapted to be inserted into said open end of the roll; a pair of locking members, each member having an arcuate knife edge for penetrating the inner surface of the roll as the member is shifted relative to the projection, a portion of said knife edge forming a screw flight; and means mounting said locking members on said projection at spaced locations thereon for movement relative thereto into engagement with the roll to penetrate the inner surface thereof and to releasably lock the projection and thereby said plate to the roll when the projection is inserted therein.
References Cited (Backward Citations)
US1796534A
Cited
US3018977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |