US3335994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum holder
Assignee: Individual
•
Filing: 1965-04-27
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Granted: 1967-08-15
•
Expires: 1985-04-27
Abstract
No abstract record available.
Inventors
- 👤 Cocito Joe Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:22
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005; G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/60; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A VACUUM HOLDER FOR SUPPORTING SHEETS IN A PLANE, COMPRISING: (A) A PANEL MEMBER HAVING A PLURAL SUCTION HOLES THERETHROUGH, EACH INCLUDING A LARGER BORE HAVING A FIRST AXIS AND EXTENDING FROM THE FRONT FACE OF SAID MEMBER THEREINTO TOWARD THE REAR AND ENDING AT AN INNER SURFACE, AND INCLUDING A SMALLER BORE HAVING A SECOND AXIS AND EXTENDING FROM THE REAR OF THE PANEL MEMBER THROUGH SAID INNER SURFACE AT A LOCATION SPACED FROM THE SIDE WALL OF THE LARGER BORE; (B) VACUUM MANIFOLD MEANS ON THE REAR OF THE PANEL MEMBER AND COMMUNICATING WITH SAID BORES; (C) VACUUM-OPERATED VALVE MEANS IN EACH LARGER BORE AND SHAPED TO ROLL ABOUT ITS CENTER THEREIN AND TO OVERLIE AND RESTRICT THE ENTRANCE TO THE SMALLER BORE AT THE INNER SURFACE WHEN SUCKED THEREAGAINST BY THE MANIFOLD MEANS, THE AXIS OF THE SMALLER BORE BEING SKEWED WITH RESPECT TO THAT OF THE LARGER BORE AND WITH RESPECT TO THE CENTER OF THE VALVE MEANS TO FORM AN ENTRANCE OF DISTORTED SHAPE AGAINST WHICH THE VALVE MEANS CAN SEAT ONLY IMPERFECTLY; AND (D) MEANS NEAR THE FRONT-FACE FOR RETAINING THE VALVE MEANS IN THE BORES.
Claim 2
Dependent Claim
192 words
A VACUUM HOLDER FOR SUPPORTING SHEETS IN A PLANE, COMPRISING: (A) A PANEL MEMBER HAVING A PLURAL SUCTION HOLES THERETHROUGH, EACH INCLUDING A LARGER BORE HAVING A FIRST AXIS AND EXTENDING FROM THE FRONT FACE OF SAID MEMBER THEREINTO TOWARD THE REAR AND ENDING AT AN INNER SURFACE, AND INCLUDING A SMALLER BORE HAVING A SECOND AXIS AND EXTENDING FROM THE REAR OF THE PANEL MEMBER THROUGH SAID INNER SURFACE AT A LOCATION SPACED FROM THE SIDE WALL OF THE LARGER BORE; (B) VACUUM MANIFOLD MEANS ON THE REAR OF THE PANEL MEMBER AND COMMUNICATING WITH SAID BORES; (C) VACUUM-OPERATED VALVE MEANS IN EACH LARGER BORE AND SHAPED TO ROLL ABOUT ITS CENTER THEREIN AND TO OVERLIE AND RESTRICT THE ENTRANCE TO THE SMALLER BORE AT THE INNER SURFACE WHEN SUCKED THEREAGAINST BY THE MANIFOLD MEANS, THE AXIS OF THE SMALLER BORE BEING SKEWED WITH RESPECT TO THAT OF THE LARGER BORE AND WITH RESPECT TO THE CENTER OF THE VALVE MEANS TO FORM AN ENTRANCE OF DISTORTED SHAPE AGAINST WHICH THE VALVE MEANS CAN SEAT ONLY IMPERFECTLY; AND (D) MEANS NEAR THE FRONT-FACE FOR RETAINING THE VALVE MEANS IN THE BORES.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |