US3972216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating press
Assignee: Sebastian Messerschmidt Spezialmaschinenfabrik Firma
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Filing: 1975-01-29
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Granted: 1976-08-03
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Expires: 1995-01-29
Abstract
Abstract A reciprocating press for shaping or forming a workpiece such as a sphere or the like includes two oppositely reciprocally movable dies mating with two fixed dies. A feed mechanism reciprocal in a lateral direction is operable to shear off workpieces from an elongated rod and to feed the sheared off workpieces to the fixed dies as the movable dies move in opposite directions.
Inventors
- 👤 Klaus Messerschmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:30
CPC Classifications
B; B21; B21K; B21K27/00; B21K27/06; B21J; B21J9/00; B21J9/10; B21J9/18; B21K1/00; B21K1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
219 words
A reciprocating press for forming articles such as sphere-like objects and the like from workpieces comprising a frame, a crankshaft rotatably mounted on said frame, said crankshaft having crank arms offset 180° relative to one another, connecting means disposed side-by-side and operatively connected to said crank arms, movable dies carried by each of said connecting means, two fixed mating dies mounted on said frame, a feed mechanism reciprocable mounted between said two fixed dies, said feed mechanism being reciprocal in a direction transverse to the reciprocal direction of said connecting means which carry said movable dies, means for feeding an elongated rod to a position disposed between said two fixed dies, said feed mechanism having two cutting edge means such that upon reciprocation of said feed mechanism in one direction, one cutting edge means shears off a workpiece from said elongated rod and feeds said sheared off workpiece to one fixed die and, upon reciprocation of said feed mechanism in the opposite direction, the other cutting edge means shears off another workpiece from said elongated rod and feeds said sheared off workpiece to the other fixed die, whereby said feed mechanism is operable to cut off said workpieces and feed the cut-off workpieces alternately to each of said two fixed dies as the movable dies move in opposite directions.
Claim 2
Dependent Claim
219 words
A reciprocating press for forming articles such as sphere-like objects and the like from workpieces comprising a frame, a crankshaft rotatably mounted on said frame, said crankshaft having crank arms offset 180° relative to one another, connecting means disposed side-by-side and operatively connected to said crank arms, movable dies carried by each of said connecting means, two fixed mating dies mounted on said frame, a feed mechanism reciprocable mounted between said two fixed dies, said feed mechanism being reciprocal in a direction transverse to the reciprocal direction of said connecting means which carry said movable dies, means for feeding an elongated rod to a position disposed between said two fixed dies, said feed mechanism having two cutting edge means such that upon reciprocation of said feed mechanism in one direction, one cutting edge means shears off a workpiece from said elongated rod and feeds said sheared off workpiece to one fixed die and, upon reciprocation of said feed mechanism in the opposite direction, the other cutting edge means shears off another workpiece from said elongated rod and feeds said sheared off workpiece to the other fixed die, whereby said feed mechanism is operable to cut off said workpieces and feed the cut-off workpieces alternately to each of said two fixed dies as the movable dies move in opposite directions.
Claim 3
Dependent Claim
38 words
A reciprocating press according to claim 1 including mounting means on said feed mechanism for carrying said workpieces to said fixed dies after the workpieces have been sheared off from said elongated rod by said cutting edge means.
Claim 4
Dependent Claim
38 words
A reciprocating press according to claim 2 including a cam mounted on said crankshaft, and operable means between said cam and said feed mechanism for reciprocating the latter in synchronism with the reciprocating motion of said movable dies.
Claim 5
Dependent Claim
20 words
A reciprocating press according to claim 3 wherein said cam is mounted on said crankshaft between said two crank arms.
Claim 6
Dependent Claim
37 words
A reciprocating press according to claim 3 wherein said operable means includes a double arm lever, and means mounting said double arm lever for reciprocal movement about an axis perpendicular to the rotational axis of said crankshaft.
References Cited (Backward Citations)
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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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |