US4006929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum pad
Assignee: FKI Industries Inc
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Filing: 1975-12-17
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Granted: 1977-02-08
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Expires: 1995-12-17
Abstract
Abstract A vacuum pad comprising a body having an opening therethrough. One end of the opening is adapted to be attached to a source of vacuum. A water trap chamber is provided on the body communicating with the opening. A cup of flexible material having a peripheral lip is mounted on the water trap chamber and has an opening therethrough providing communication between the interior of the water trap chamber and the space surrounded by the peripheral lip.
Inventors
- 👤 Loren B. Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:26
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/02; B66C1/0212; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B66C1/0231; B66C1/0293
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
In a vacuum pad, the combination comprising a body, said body having an opening therethrough, one end of said opening being adapted to be attached to a source of vacuum, an annular member associated with said body and defining a water trap chamber communicating with said opening, and a cup of flexible material having a peripheral lip and a central portion mounted on said chamber defining means and having a plurality of circumferentially spaced openings through said central portion providing communication between the interior of said water trap chamber and the space surrounded by said lip.
Claim 2
Dependent Claim
96 words
In a vacuum pad, the combination comprising a body, said body having an opening therethrough, one end of said opening being adapted to be attached to a source of vacuum, an annular member associated with said body and defining a water trap chamber communicating with said opening, and a cup of flexible material having a peripheral lip and a central portion mounted on said chamber defining means and having a plurality of circumferentially spaced openings through said central portion providing communication between the interior of said water trap chamber and the space surrounded by said lip.
Claim 3
Dependent Claim
27 words
The combination set forth in claim 1 including a wear pad underlying said central portion and having openings therein aligned with the openings in said central portion.
Claim 4
Dependent Claim
112 words
In a vacuum pad, the combination comprising a body, said body having an opening therethrough, one end of said opening being adapted to be attached to a source of vacuum, means associated with said body and defining a water trap chamber communicating with said opening, a cup of flexible material having a peripheral lip mounted on said chamber defining means and having an opening therethrough providing communication between the interior of said water trap chamber and the space surrounded by said lip, said cup including a central portion having said opening therein, and a wear pad underlying said central portion and having openings therein aligned with the openings in said central portion.
Claim 5
Dependent Claim
112 words
In a vacuum pad, the combination comprising a body, said body having an opening therethrough, one end of said opening being adapted to be attached to a source of vacuum, means associated with said body and defining a water trap chamber communicating with said opening, a cup of flexible material having a peripheral lip mounted on said chamber defining means and having an opening therethrough providing communication between the interior of said water trap chamber and the space surrounded by said lip, said cup including a central portion having said opening therein, and a wear pad underlying said central portion and having openings therein aligned with the openings in said central portion.
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) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |