US3134208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens holding device
Assignee: Individual
•
Filing: 1962-01-08
•
Granted: 1964-05-26
•
Expires: 1982-01-08
Abstract
No abstract record available.
Inventors
- 👤 J D Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:35
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A DEVICE FOR HOLDING AN OPTICAL BLANK FOR PROCESSING, WHICH DEVICE COMPRISES: (A) A ROTATABLE, GLANDLESS MANDREL, (B) ELASTOMER CUP MEANS DETACHABLY SECURED TO SAID MANDREL, (C) SAID MANDREL HAVING AN AXIAL OPENING EXTENDING THEREINTO FOR A PORTION OF THE LENGTH THEREOF, (D) SAID MANDREL HAVING A LATERAL PASSAGE FORMED THEREIN, WHICH LATERAL PASSAGE INTERSECTS SAID AXIAL OPENING THEREIN, (E) SELF-CONTAINED VALVE MEANS IN SAID ROTATABLE, GLANDLESS MANDREL TO CLOSE SAID LATERAL PASSAGE THEREIN IN AIR TIGHT RELATION, (F) DETACHABLE PUMP MEANS TO SELECTIVELY PASS AIR THROUGH SAID VALVE MEANS ON SAID ROTATABLE, GLANDLESS MANDREL ONLY WHEN SAID MANDREL IS NOT ROTATING, WHICH VALVE MEANS SELECTIVELY CLOSES SAID LATERAL OPENING IN SAID MANDREL TO FORM A SELF-CONTAINED AIR TIGHT CHAMBER, (G) SAID ELASTOMER CUP HAVING AN AXIAL PASSAGE FORMED THERETHROUGH, WHICH PASSAGE IN SAID ELASTOMER CUP IS ADAPTED TO REGISTER WITH SAID AXIAL OPENING IN SAID MANDREL, AND (H) A FACE OF SAID ELASTOMER CUP BEING SO CONFORMED TO SEAT NEAR THE EDGE OF AN OPTICAL BLANK.
Claim 2
Independent Claim
167 words
A DEVICE FOR HOLDING AN OPTICAL BLANK FOR PROCESSING, WHICH DEVICE COMPRISES: (A) A ROTATABLE, GLANDLESS MANDREL, (B) ELASTOMER CUP MEANS DETACHABLY SECURED TO SAID MANDREL, (C) SAID MANDREL HAVING AN AXIAL OPENING EXTENDING THEREINTO FOR A PORTION OF THE LENGTH THEREOF, (D) SAID MANDREL HAVING A LATERAL PASSAGE FORMED THEREIN, WHICH LATERAL PASSAGE INTERSECTS SAID AXIAL OPENING THEREIN, (E) SELF-CONTAINED VALVE MEANS IN SAID ROTATABLE, GLANDLESS MANDREL TO CLOSE SAID LATERAL PASSAGE THEREIN IN AIR TIGHT RELATION, (F) DETACHABLE PUMP MEANS TO SELECTIVELY PASS AIR THROUGH SAID VALVE MEANS ON SAID ROTATABLE, GLANDLESS MANDREL ONLY WHEN SAID MANDREL IS NOT ROTATING, WHICH VALVE MEANS SELECTIVELY CLOSES SAID LATERAL OPENING IN SAID MANDREL TO FORM A SELF-CONTAINED AIR TIGHT CHAMBER, (G) SAID ELASTOMER CUP HAVING AN AXIAL PASSAGE FORMED THERETHROUGH, WHICH PASSAGE IN SAID ELASTOMER CUP IS ADAPTED TO REGISTER WITH SAID AXIAL OPENING IN SAID MANDREL, AND (H) A FACE OF SAID ELASTOMER CUP BEING SO CONFORMED TO SEAT NEAR THE EDGE OF AN OPTICAL BLANK.
References Cited (Backward Citations)
US649401A
Cited
US1119111A
Cited
US2136520A
Cited
US2398959A
Cited
US2444531A
Cited
US2520977A
Cited
US2437436A
Cited
US2688220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |