Patent US5052230A successfully refreshed from Google Patents.
Patent US4320696A successfully refreshed from Google Patents.
Patent US4057920A successfully refreshed from Google Patents.
US4057920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture viewer with successive feed means
Assignee: PERKINS FREDERICK G III PERKINS & ASSOCIATES
•
Filing: 1975-11-24
•
Granted: 1977-11-15
•
Expires: 1995-11-24
Abstract
Abstract A picture viewer that comprises a generally flat housing for a stack of pictures or similar rectangular items and includes a manually reciprocative shuttle upon which such a stack is stored, said shuttle having a rear edge portion for engaging the rear edge of the lowermost items on the shuttle, whereby, upon protractive movement of the shuttle, the item engaged therewith is withdrawn from the bottom of the stack to be totally therebeyond, said shuttle being provided with means to resiliently upwardly bias said removed item to a position above the level of the top of the stack, and said item, during retractive movement of the shuttle to its retracted position, moves said item between the top of the stack and the top wall of the housing to be in register with a viewing opening in said top wall.
Inventors
- 👤 John H. Weggeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:02
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G09; G09F; G09F11/00; G09F11/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
220 words
A picture viewer comprising: a rectangular housing having three closed and one open side, a top and a bottom, a manually slidable shuttle normally disposed on the bottom of said housing and guided for manual movement from said position within said housing and a position extending from the mentioned open side of the housing, the rearward portion of said shuttle being provided with an abutment means for locating a stack of pictures disposed upon said shuttle, said abutment engaging the rearward edge of the lowermost picture of the stack whereby, when the shuttle is moved to its extended position, only said lowermost picture is transported by the shuttle to a position beyond the forward side of the stack, an upwardly flexed tongue provided on the top surface of the rearward end of the shuttle to upwardly raise the rear end of the picture upon the shuttle; and the forward end of the shuttle being provided with a raised rearwardly directed lip, the underface of said lip being engaged by the forward end of the picture that is upwardly raised by the tongue, and upon return movement of the shuttle, the picture thereon is moved by the mentioned lip of the shuttle to a position on the top of the stack and into register with the abutment which locates the stack.
Claim 2
Dependent Claim
220 words
A picture viewer comprising: a rectangular housing having three closed and one open side, a top and a bottom, a manually slidable shuttle normally disposed on the bottom of said housing and guided for manual movement from said position within said housing and a position extending from the mentioned open side of the housing, the rearward portion of said shuttle being provided with an abutment means for locating a stack of pictures disposed upon said shuttle, said abutment engaging the rearward edge of the lowermost picture of the stack whereby, when the shuttle is moved to its extended position, only said lowermost picture is transported by the shuttle to a position beyond the forward side of the stack, an upwardly flexed tongue provided on the top surface of the rearward end of the shuttle to upwardly raise the rear end of the picture upon the shuttle; and the forward end of the shuttle being provided with a raised rearwardly directed lip, the underface of said lip being engaged by the forward end of the picture that is upwardly raised by the tongue, and upon return movement of the shuttle, the picture thereon is moved by the mentioned lip of the shuttle to a position on the top of the stack and into register with the abutment which locates the stack.
Claim 3
Dependent Claim
108 words
A picture viewer according to claim 1 in which the housing comprises a rectangular base member having the mentioned three closed sides and the one open side, and the bottom, and the mentioned top comprises a cover for said housing, said top cover constituting a frame for the top picture of the stack, and the rear and both side portions of said top of the housing being thicker than the mentioned forward portion of the top cover, to press upon the topmost picture of the stack to guide the rearward edge of said picture when the shuttle is returned from its extended position to its initially contracted position.
Claim 4
Dependent Claim
77 words
A picture viewer according to claim 2 in which is provided a centrally located projection on the undersurface of the end of the housing between the thicker side portions of the top cover, said projection and aligned ends of the mentioned thickened portions having lead-in slanted ends to guide the pictures that are removed from the bottom of the stack to the mentioned retracted positions in register with the frame of the top cover of the housing.
Claim 5
Dependent Claim
72 words
A picture viewer according to claim 3 provided with elastic means separably connecting said base and cover plate, said elastic means extending around said base and cover plate transversely of the direction of movement of the shuttle, said elastic means stretched to press downwardly on the housing cover plate, the latter thereby exerting a bias on the stack, the degree of such bias varying with the number of pictures on the stack.
Claim 6
Dependent Claim
56 words
A picture viewer according to claim 4, the open end of the base member of the housing, inward of the opposite sides of the side walls thereof, is provided with stops, and the mentioned thickened portion of the shuttle is provided with lateral extensions to engage said stops to limit the extended position of the shuttle.
Claim 7
Dependent Claim
39 words
A picture viewer according to claim 4 in which the elastic means comprises bands of rubber, the outer portions of the base and cover plate that are engaged with said bands being recessed to retain them against lateral movement.
Claim 8
Dependent Claim
54 words
A picture viewer according to claim 6 in which the upper ends of the recessed portions in the upper portions of the sides of the bases being notched to allow said bonds to press downwardly on the cover plate to press upon the stack although the number of pictures of the stack may vary.
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) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |