Patent US3568559A successfully refreshed from Google Patents.
US3568559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press unit
Assignee: IMP Manufacturing and Engineering Co
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Filing: 1969-02-13
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Granted: 1971-03-09
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Expires: 1989-02-13
Abstract
Abstract A fluid operated press is disclosed providing two parallel support columns mounted at one end on a base and connected at their other ends by a tie element. A piston is mounted on one support column and a cooperating cylinder assembly is guided by the column for reciprocating movement. Fluid passage means extend through the tie member and axially along one support column to provide separate flow passages communicating with each of the cylinder chambers.
Inventors
- 👤 Frank J Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:16
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/32; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8858; Y10T83/8866
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
196 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and Extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element, a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, said tie element being formed with a connecting passage in fluid communication with each of said axial passages.
Claim 2
Dependent Claim
196 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and Extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element, a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, said tie element being formed with a connecting passage in fluid communication with each of said axial passages.
Claim 3
Dependent Claim
54 words
A press as set forth in claim 1 wherein said tie element is formed with a bore enclosing the end of said one support, said connecting passages and axial passages connecting through the interface between said one end of said support and said bore, and clamp means are provided to tightly clamp said interface.
Claim 4
Dependent Claim
191 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, said cylinder assembly being provided with a guide passage encircling said other support.
Claim 5
Dependent Claim
191 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, said cylinder assembly being provided with a guide passage encircling said other support.
Claim 6
Dependent Claim
230 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element, a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, a first lock ring being positioned on one side of said piston, and clamping lock means are provided on the other side of said piston, said clamping lock means operating to press said piston towards said first lock ring to secure said piston in a predetermined position relative to said one support.
Claim 7
Dependent Claim
230 words
A press comprising a base, a pair of parallel cylindrical supports anchored at one end in said base and extending in one direction therefrom, a tie element, the other ends of said supports being anchored in said tie element, a piston mounted on one of said supports between said base and tie element, a cylinder assembly reciprocably mounted on said supports, said cylinder assembly providing a cylindrical portion peripherally engaging said piston and a seal and guide portion engaging said one support on each side of said piston, said piston and cylinder assembly cooperating to define a first expansible chamber on one side of said piston and a second expansible chamber on the other side of said piston, said one support being provided with first and second axial passages open to said first and second chambers respectively, said passages being adapted to be selectively connected to a valved source of fluid under pressure, said base and cylinder assembly being formed with opposed tool mounting portions on the side of said one support opposite the other of said supports, a first lock ring being positioned on one side of said piston, and clamping lock means are provided on the other side of said piston, said clamping lock means operating to press said piston towards said first lock ring to secure said piston in a predetermined position relative to said one support.
Claim 8
Dependent Claim
39 words
A press as set forth in claim 4 wherein said clamping lock means includes a split sCrew positioned in a groove in said one support, and a nut threaded onto said split screw engaging one side of said piston.
Claim 9
Dependent Claim
21 words
A press as set forth in claim 5 wherein a lock pin is provided to prevent rotation of said split screw.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |