Patent US4240743A successfully refreshed from Google Patents.
US4240743A
Expired / Lapsed
US
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Vacuum frame
Assignee: TEANECK GRAPHICS CORP A CORP OF N J
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Filing: 1978-05-08
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Granted: 1980-12-23
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Expires: 1998-05-08
Abstract
Abstract A vacuum frame, comprising a base section, a cover hingeably attached to the base section and including a transparent section, the cover and base section forming a vacuum chamber therebetween when the vacuum frame is in a closed position, a reserve vacuum tank in fluid communication with the vacuum chamber, the vacuum tank adapted to create a vacuum within the vacuum chamber, a vacuum pump in fluid communication with the reserve vacuum tank, the vacuum pump adapted to create a vacuum within the reserve vacuum tank, and an electro-mechanical means for simultaneously regulating the vacuum pressure within the vacuum chamber and reserve vacuum tank and the actuation of the vacuum pump.
Inventors
- 👤 Joseph G. Hliboki
- 👤 Paul Staudenmaier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/20; G03B27/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
151 words
A vacuum frame, comprising: a base section; a cover hingably attached to said base section and including a transparent section, said cover and said base section forming a vacuum chamber therebetween when said vacuum frame is in a closed position; a reserve vacuum tank in fluid communication with said vacuum chamber, said reserve vacuum tank adapted to create a vacuum within said vacuum chamber; a vacuum pump means in fluid communication with said reserve vacuum tank, said vacuum pump means adapted to create a vacuum within said reserve vacuum tank; and an electro-mechanical means for simultaneously regulating the vacuum pressure within said vacuum chamber and said reserve vacuum tank and the actuation of said vacuum pump means, said electro-mechanical means comprising a cam means secured to said vacuum frame for simultaneously actuating a series of valves and switches for regulating a vacuum within said vacuum chamber and said reserve vacuum tank.
Claim 2
Dependent Claim
151 words
A vacuum frame, comprising: a base section; a cover hingably attached to said base section and including a transparent section, said cover and said base section forming a vacuum chamber therebetween when said vacuum frame is in a closed position; a reserve vacuum tank in fluid communication with said vacuum chamber, said reserve vacuum tank adapted to create a vacuum within said vacuum chamber; a vacuum pump means in fluid communication with said reserve vacuum tank, said vacuum pump means adapted to create a vacuum within said reserve vacuum tank; and an electro-mechanical means for simultaneously regulating the vacuum pressure within said vacuum chamber and said reserve vacuum tank and the actuation of said vacuum pump means, said electro-mechanical means comprising a cam means secured to said vacuum frame for simultaneously actuating a series of valves and switches for regulating a vacuum within said vacuum chamber and said reserve vacuum tank.
Claim 3
Dependent Claim
30 words
The vacuum frame of claim 1, wherein said base section comprises a frame section having a blanket disposed therein and parallel thereto, said blanket having at least two apertures therein.
Claim 4
Dependent Claim
22 words
The vacuum frame of claim 2, wherein said blanket includes a gasket attached thereto at the inner periphery of said frame section.
Claim 5
Dependent Claim
22 words
The vacuum frame of claim 1, wherein said cover includes a frame section and a transparent plate disposed therein and parallel thereto.
Claim 6
Dependent Claim
21 words
The vacuum frame of claim 4, wherein said cover includes a locking pin attached to said frame section of said cover.
Claim 7
Dependent Claim
33 words
The vacuum frame of claim 1, wherein said electro-mechanical means comprises a bleeder valve in fluid communication with said vacuum chamber, said bleeder valve adapted to release a vacuum within said vacuum chamber.
Claim 8
Dependent Claim
49 words
The vacuum frame of claim 1, wherein said electro-mechanical means includes a reserve vacuum tank valve in fluid communication with said reserve vacuum tank and said vacuum chamber, said reserve vacuum tank valve adapted to open and close said communication between said reserve vacuum tank and said vacuum chamber.
Claim 9
Dependent Claim
43 words
The vacuum frame of claim 1, wherein said electro-mechanical means comprises a vacuum pump switch in electrical communication with said vacuum pump means, said vacuum pump switch adapted to open and close a circuit between a power supply and said vacuum pump means.
Claim 10
Dependent Claim
96 words
The vacuum frame of claim 1, wherein said electro-mechanical means includes a reserve vacuum tank switch in fluid communication with said reserve vacuum tank and in electrical communication with said vacuum pump means, said reserve vacuum tank switch being adapted to open a circuit between a power supply and said vacuum pump means when the vacuum pressure within said reserve vacuum tank has reached a predetermined upper limit, and to close said circuit between said power supply and said vacuum pump means when vacuum pressure within said reserve vacuum tank has reached a predetermined lower limit.
Claim 11
Dependent Claim
17 words
The vacuum frame of claim 1, comprising a handle for locking said cover to said base section.
Claim 12
Dependent Claim
328 words
A vacuum frame, comprising: a base section; a cover hingably attached to said base section and including a transparent section, said cover and said base section forming a vacuum chamber therebetween when said vacuum frame is in a closed position; a reserve vacuum tank in fluid communication with said vacuum chamber, said reserve vacuum tank adapted to create a vacuum within said vacuum chamber; a vacuum pump means in fluid communication with said reserve vacuum tank, said vacuum pump means adapted to create a vacuum within said reserve vacuum tank; a bleeder valve in fluid communication with said vacuum chamber, said bleeder valve adapted to release a vacuum within said vacuum chamber; a reserve vacuum tank valve in fluid communication with said reserve vacuum tank and said vacuum chamber, said reserve vacuum tank valve adapted to open and close said communication between said reserve vacuum tank and said vacuum chamber; a vacuum pump switch in electrical communication with said vacuum pump means, said vacuum pump switch adapted to open and close a circuit between a power supply and said vacuum pump means; a reserve vacuum tank switch means in fluid communication with said reserve vacuum tank and in electrical communication with said vacuum pump means, said reserve vacuum tank switch adapted to open a circuit between a power supply and said vacuum pump means when vacuum pressure within said vacuum reserve tank reaches a predetermined upper limit and to close said circuit when said vacuum pressure within said reserve vacuum tank reaches a predetermined lower limit; and a cam means rotatably secured to said vacuum frame for simultaneously actuating said reserve vacuum tank valve, said bleeder valve and said vacuum pump switch, wherein said vacuum pump switch, said reserve vacuum tank valve, said bleeder valve, said reserve vacuum tank switch and said cam means act to simultaneously regulate said vacuum pressure within said vacuum chamber and said reserve vacuum tank and the actuation of said vacuum pump means.
Claim 13
Dependent Claim
328 words
A vacuum frame, comprising: a base section; a cover hingably attached to said base section and including a transparent section, said cover and said base section forming a vacuum chamber therebetween when said vacuum frame is in a closed position; a reserve vacuum tank in fluid communication with said vacuum chamber, said reserve vacuum tank adapted to create a vacuum within said vacuum chamber; a vacuum pump means in fluid communication with said reserve vacuum tank, said vacuum pump means adapted to create a vacuum within said reserve vacuum tank; a bleeder valve in fluid communication with said vacuum chamber, said bleeder valve adapted to release a vacuum within said vacuum chamber; a reserve vacuum tank valve in fluid communication with said reserve vacuum tank and said vacuum chamber, said reserve vacuum tank valve adapted to open and close said communication between said reserve vacuum tank and said vacuum chamber; a vacuum pump switch in electrical communication with said vacuum pump means, said vacuum pump switch adapted to open and close a circuit between a power supply and said vacuum pump means; a reserve vacuum tank switch means in fluid communication with said reserve vacuum tank and in electrical communication with said vacuum pump means, said reserve vacuum tank switch adapted to open a circuit between a power supply and said vacuum pump means when vacuum pressure within said vacuum reserve tank reaches a predetermined upper limit and to close said circuit when said vacuum pressure within said reserve vacuum tank reaches a predetermined lower limit; and a cam means rotatably secured to said vacuum frame for simultaneously actuating said reserve vacuum tank valve, said bleeder valve and said vacuum pump switch, wherein said vacuum pump switch, said reserve vacuum tank valve, said bleeder valve, said reserve vacuum tank switch and said cam means act to simultaneously regulate said vacuum pressure within said vacuum chamber and said reserve vacuum tank and the actuation of said vacuum pump means.
References Cited (Backward Citations)
US2117051A
Cited
US2826976A
Cited
US3357335A
Cited
US3359879A
Cited
US3420608A
Cited
US3644039A
Cited
US3995955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |