US3682083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing rack for photographic glass plates
Assignee: Individual
•
Filing: 1971-07-19
•
Granted: 1972-08-08
•
Expires: 1991-07-19
Abstract
Abstract An open frame processing rack for photographic glass plates has a pair of gripping rollers with annular grooves for engaging opposite edges of the plates. The rollers are resiliently biased against the edges of the plates, and the depth of insertion of the plates between the rollers is limited.
Inventors
- 👤 Jose R Puente
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:12
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; Y; Y10; Y10S; Y10S206/00; Y10S206/832; Y10S206/833
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
A processing rack for photographic glass plates, said rack comprising: a. a generally open frame; b. a pair of parallel shafts supported on said frame; c. gripping rollers supported on each of said shafts; d. said gripping rollers having a plurality of evenly spaced annular grooves for engaging opposite edges of said plates; e. means for resiliently biasing said rollers against said edges of said plates; and f. means arranged on said frame for limiting the depth of insertion of said plates between said rollers.
Claim 2
Dependent Claim
85 words
A processing rack for photographic glass plates, said rack comprising: a. a generally open frame; b. a pair of parallel shafts supported on said frame; c. gripping rollers supported on each of said shafts; d. said gripping rollers having a plurality of evenly spaced annular grooves for engaging opposite edges of said plates; e. means for resiliently biasing said rollers against said edges of said plates; and f. means arranged on said frame for limiting the depth of insertion of said plates between said rollers.
Claim 3
Dependent Claim
18 words
The rack of claim 1 wherein said biasing means comprises flexible bushings supporting said rollers on said shafts.
Claim 4
Dependent Claim
29 words
The rack of claim 1 wherein said shafts are movably supported on said frame, and said biasing means comprises spring means for urging said shafts toward a minimum separation.
Claim 5
Dependent Claim
18 words
The rack of claim 3 wherein said biasing means includes flexible bushings supporting said rollers on said shafts.
Claim 6
Dependent Claim
28 words
The rack of claim 1 wherein said gripping rollers comprise a plurality of rings rotatably mounted on said shafts, each of said rings forming one of said grooves.
Claim 7
Dependent Claim
18 words
The rack of claim 5 wherein said biasing means comprises flexible bushings supporting said rings on said shafts.
Claim 8
Dependent Claim
29 words
The rack of claim 5 wherein said shafts are movably supported on said frame, and said biasing means comprises spring means for urging said shaft toward a minimum separation.
Claim 9
Dependent Claim
18 words
The rack of claim 7 wherein said biasing means includes flexible bushings supporting said rings on said shafts.
Claim 10
Dependent Claim
29 words
The rack of claim 1 wherein said frame includes a pair of end plates and tie-rods connecting said end plates, and wherein said shafts extend between said end plates.
Claim 11
Dependent Claim
17 words
The rack of claim 9 wherein said depth limiting means comprises rods extending between said end pLates.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |