US3608478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed press
Assignee: FREDERICK A KRAUSE ASSOCIATES Inc
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Filing: 1970-04-16
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Granted: 1971-09-28
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Expires: 1990-04-16
Abstract
Abstract Press mechanisms comprising a frame mounting at least two pairs of press shoes which are actuated by crankarms; and mechanical or electrical synchronizing means for operating the press shoes in alternate sequence.
Inventors
- 👤 Bernard L Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:23
CPC Classifications
B; B30; B30B; B30B7/00; B30B7/04; B30B1/00; B30B1/26; B30B15/00; B30B15/14; B30B15/146; B30B7/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A press mechanism comprising a rigid stationary frame, at least two pairs of mutually facing cooperating press shoes, means in said frame for guiding the shoes in each pair for movement toward and away from each other, a plurality of crankshafts having crankarms mounted thereon, said crankshafts in turn being mounted to rotate in said frame; means connecting said press shoes to the crankarms of associated crankshafts so as to convert continuous rotational movement of the crankshafts to reciprocal linear movement of the press shoes, and means synchronizing the rotation of the various crankshafts in a manner to cause opening and closing of said press shoes in mutually opposite sequence.
Claim 2
Dependent Claim
110 words
A press mechanism comprising a rigid stationary frame, at least two pairs of mutually facing cooperating press shoes, means in said frame for guiding the shoes in each pair for movement toward and away from each other, a plurality of crankshafts having crankarms mounted thereon, said crankshafts in turn being mounted to rotate in said frame; means connecting said press shoes to the crankarms of associated crankshafts so as to convert continuous rotational movement of the crankshafts to reciprocal linear movement of the press shoes, and means synchronizing the rotation of the various crankshafts in a manner to cause opening and closing of said press shoes in mutually opposite sequence.
Claim 3
Dependent Claim
36 words
A press mechanism as in claim 1 wherein the press shoes in each of said pairs are arranged in said frame to move toward and away from each other during rotational movements of their respective crankshafts.
Claim 4
Dependent Claim
24 words
A press mechanism as in claim 2 wherein said press shoes are arranged in a line along the direction of their reciprocal linear movement.
Claim 5
Dependent Claim
21 words
A press mechanism as in claim 3 wherein the adjacent press shoes of adjacent pairs are connected to a common crankshaft.
Claim 6
Dependent Claim
21 words
A press mechanism as in claim 4 wherein said adjacent press shoes are connected via common crankarms to said common crankshaft.
Claim 7
Dependent Claim
13 words
A press mechanism as in claim 5 wherein said crankshafts are gearably interconnected.
Claim 8
Dependent Claim
19 words
A press mechanism as in claim 6 wherein one of said crankshafts is coupled to a press drive motor.
Claim 9
Dependent Claim
17 words
A press mechanism as in claim 5 wherein said crankshafts are individually driven by synchronous electric motors.
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |