US3568959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cup type work gripping means
Assignee: Individual
•
Filing: 1969-04-09
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Granted: 1971-03-09
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Expires: 1989-04-09
Abstract
Abstract A vacuum cup type of work gripping means such as is shown in FIG. 4 of U.S. Pat. No. 3,349,927 of Oct. 31, 1967, of Leland F. Blatt, the undersigned, characterized by the provision of a three-way valve in its supply line and further characterized by a novel arrangement of separate parts facilitating manufacture, assembly, and part replacement.
Inventors
- 👤 Leland F Blaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:03
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B65G47/911; B66; B66C; B66C1/00; B66C1/02; B66C1/0212; B66C1/0293
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A vacuum cup type of work gripping means comprising: a. a cup means; b. a support means for said cup means; c. a venturi-type passage horizontally through said support means having openings at opposite ends and also having a vertical side opening; d. said support means having parallel depending facing flanges defining facing ways for removably receiving and mounting an adapter under it; e. an adapter having a depending body and a squared head providing aligned outwardly projecting flanges adapted to be received in the ways of the support means for removably mounting the adapter in the ways of the support means; with said body being of cylindrical form and having an external thread; and also having a bore communicating with the side opening of the support means; and f. said cup means including a flexible cup and a cylindrical sleeve around which the cup is molded, with said sleeve being internally threaded for removably mounting the cup means on the adapter body and under it.
Claim 2
Dependent Claim
166 words
A vacuum cup type of work gripping means comprising: a. a cup means; b. a support means for said cup means; c. a venturi-type passage horizontally through said support means having openings at opposite ends and also having a vertical side opening; d. said support means having parallel depending facing flanges defining facing ways for removably receiving and mounting an adapter under it; e. an adapter having a depending body and a squared head providing aligned outwardly projecting flanges adapted to be received in the ways of the support means for removably mounting the adapter in the ways of the support means; with said body being of cylindrical form and having an external thread; and also having a bore communicating with the side opening of the support means; and f. said cup means including a flexible cup and a cylindrical sleeve around which the cup is molded, with said sleeve being internally threaded for removably mounting the cup means on the adapter body and under it.
Claim 3
Dependent Claim
28 words
A vacuum cup type of work gripping means according to claim 1, and opposed arcuate inwardly directed stops on said flanges; said cylindrical sleeve bearing against said stops.
Claim 4
Dependent Claim
76 words
A vacuum cup type of work gripping means according to claim 1, and said support means including a ball shaped end and an axial threaded aperture therethrough; a support arm having an arcuate socket adjustably receiving said ball shaped end; there being a transverse elongated slot through said arm in registry with said socket; a fastener extending through said arm slot and into said threaded aperture; and friction means interposed between said fastener and said arm.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |