US3816044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic press
Assignee: FOLDCRAFT Co
•
Filing: 1973-02-07
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Granted: 1974-06-11
•
Expires: 1993-02-07
Abstract
Abstract An automatic hot press for forming contoured laminated bench seats utilizing an overhead pivotable heated die to form the inside of the bench against three lower heated dies which form the outside surface of the bench. The central lower heated die is positioned against the sharply curving portion of the bench between the seat and back portions before the other lower dies so as to insure proper forming and prevent cracking of the bench. The entire operation of the press is automatically sequenced with a pressurized air system.
Inventors
- 👤 H Nielsen
- 👤 L Hagenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:21
CPC Classifications
B; B29; B29C; B29C43/00; B27; B27D; B27D1/00; B27D1/04; B27D1/08; B27D1/083; B29C53/00; B29C53/02; B29C53/04; B29L; B29L2031/00; B29L2031/771
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
A heated automatic press for forming contoured, laminated bench seats comprising in combination: a main frame structure; a die of size and shape corresponding to the inside surface of the bench seat including the seat and back portions and the curved portion connecting the seat and back portions; movable subframe means movably connected to said main frame and carrying said inside die; first, second, and third outside dies positioned and shaped to collectively form the outside of said desired bench; first, second, and third moving means connected respectively to said first, second, and third outside dies so as to move said outside dies against the outside surface of the bench comprising respectively the seat and back portions of the bench and the curved portion connecting the seat and back portions; and an automatic control system connected to operate the moving means and activate said third moving means to move said third outside die against said curved portion of the bench before the first and second outside dies move against the seat and back portions.
Claim 2
Dependent Claim
174 words
A heated automatic press for forming contoured, laminated bench seats comprising in combination: a main frame structure; a die of size and shape corresponding to the inside surface of the bench seat including the seat and back portions and the curved portion connecting the seat and back portions; movable subframe means movably connected to said main frame and carrying said inside die; first, second, and third outside dies positioned and shaped to collectively form the outside of said desired bench; first, second, and third moving means connected respectively to said first, second, and third outside dies so as to move said outside dies against the outside surface of the bench comprising respectively the seat and back portions of the bench and the curved portion connecting the seat and back portions; and an automatic control system connected to operate the moving means and activate said third moving means to move said third outside die against said curved portion of the bench before the first and second outside dies move against the seat and back portions.
Claim 3
Dependent Claim
23 words
The press of claim 1 in which said movable subframe means comprises a subframe pivoted on said main frame above said outside dies.
Claim 4
Dependent Claim
24 words
The press of claim 1 in which said moving subframe means comprise air inflatable bags positioned between the outside dies and the main frame.
Claim 5
Dependent Claim
58 words
The press of claim 3 including radius rod locating members extending between the main frame and said third outside die and pivotable connecting links between said third outside die and said first and second outside dies to insure that the first, second and third dies collectively engage the outside surface of the bench seat in the correct position.
Claim 6
Dependent Claim
23 words
The press of claim 4 in which said movable subframe means comprises a subframe pivoted on said main frame above said outside dies.
Claim 7
Dependent Claim
28 words
The press of claim 5 including a plurality of tubes disposed in said inside die and in said outside dies, said tubes adapted to carry hot heating fluid.
Claim 8
Dependent Claim
66 words
The press of claim 3 in which said control system includes a source of pressurized air connected through first control switching means to an air cylinder mounted between the main frame and the pivoting subframe, said air cylinder adapted to pivot the subframe and the inside die away from the outside dies, and said source also connected through second control switching means to said inflatable bags.
Claim 9
Dependent Claim
66 words
The press of claim 6 in which said control system includes a source of pressurized air connected through first control switching means to an air cylinder mounted between the main frame and the pivoting sUbframe, said air cylinder adapted to pivot the subframe and the inside die away from the outside dies, and said source also connected through second control switching means to said inflatable bags.
Claim 10
Dependent Claim
46 words
The press of claim 8 in which said first control switching means includes a timing valve, a first safety switch, and a two way valve and said second control switching means includes a second safety switch connected to the second output of said two way valve.
Claim 11
Dependent Claim
31 words
The press of claim 9 including locking pin means to secure said subframe in the bench forming portion, said pin means connected also to control said first and second safety switches.
References Cited (Backward Citations)
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US3066725A
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US3099061A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |