Patent US2450733A successfully refreshed from Google Patents.
Patent US3686922A successfully refreshed from Google Patents.
US3686922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination manual and hydraulic arbor press
Assignee: Individual
•
Filing: 1970-10-23
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Granted: 1972-08-29
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Expires: 1990-10-23
Abstract
Abstract An arbor press wherein the ram is adapted to be moved by a lever-operated pinion constantly in mesh with a rack attached to a ram carriage, with the ram continuously moved out of the ram carriage by hydraulic pressure. In the application of the hydraulic pressure so as to move the ram out of the ram carriage, a gear-faced lock is initially moved into meshing contact with the rack on the ram carriage so as to lick the same against continuous manual movement while the ram is further moved out of the ram carriage under the force of the hydraulics.
Inventors
- 👤 Erich Bley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/32; B30B1/24; B30B15/00; B30B15/04; B30B15/047; B30B15/28; B30B15/287
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
169 words
An arbor press having a C-frame including a base and spaced apart stanchions for supporting in an elevated position over an open work area a head block, wherein the improvement comprises a. a ram supporting carriage mounted in the head block for movement therethrough into and out of the open work area, b. a work-engaging ram connected to said carriage for movement therewith into and out of the open work area, c. means for connecting said work-engaging ram to said carriage for independent coaxial movement through the open work area, d. a pinion and rack moving means for reciprocally moving said carriage through the head block, e. means for locking said carriage against movement through the head block and from being moved by said pinion and rack moving means, f. means for moving said work-engaging ram out of said carriage and through the open work area independently of said carriage, and g. means for actuating said carriage locking means and for actuating said moving means for said work-engaging ram.
Claim 2
Dependent Claim
169 words
An arbor press having a C-frame including a base and spaced apart stanchions for supporting in an elevated position over an open work area a head block, wherein the improvement comprises a. a ram supporting carriage mounted in the head block for movement therethrough into and out of the open work area, b. a work-engaging ram connected to said carriage for movement therewith into and out of the open work area, c. means for connecting said work-engaging ram to said carriage for independent coaxial movement through the open work area, d. a pinion and rack moving means for reciprocally moving said carriage through the head block, e. means for locking said carriage against movement through the head block and from being moved by said pinion and rack moving means, f. means for moving said work-engaging ram out of said carriage and through the open work area independently of said carriage, and g. means for actuating said carriage locking means and for actuating said moving means for said work-engaging ram.
Claim 3
Dependent Claim
49 words
An arbor press as defined by claim 1 wherein said means for locking said carriage against movement through the head block comprises a non-rotatable gear block movable into mesh with the rack and gear block-moving means for preventing the rack-moving means from moving said carriage through the head block.
Claim 4
Dependent Claim
31 words
An arbor press as defined by claim 2 including a hydraulically moved piston in contact with said non-rotatable gear block, for moving the same under pressure into contact with the rack.
Claim 5
Dependent Claim
59 words
An arbor press as defined by claim 1 wherein said means for moving said work-engaging ram out of said carriage comprises a hydraulic cylinder mounted within said carriage and having a piston connected to said work-engaging ram and movable coaxially of said carriage so as to move said work-engaging ram through the open work area independently of said carriage.
Claim 6
Dependent Claim
49 words
An arbor press as defined by claim 4 wherein said means for locking said carriage against movement through the head block comprises a non-rotatable gear block movable into mesh with the rack and gear block-moving means for preventing the rack-moving means from moving said carriage through the head block.
Claim 7
Dependent Claim
59 words
An arbor press as defined by claim 3 wherein said means for moving said work-engaging ram out of said carriage comprises a hydraulic cylinder mounted within said carriage and having a piston connected to said work-engaging ram and movable coaxially of said carriage so as to move said work-engaging ram through the open work area independently of said carriage.
Claim 8
Dependent Claim
68 words
An arbor press as defined by claim 6 wherein the means for actuating said hydraulically moved piston and said non-rotatable gear block and said hydraulic cylinder and piston within said carriage, comprises a manually operated pump including a hydraulic system having a manifold and conduits extending between the pump and said manifold for applying hydraulic pressure to said hydraulically moved piston and said hydraulic cylinder within said carriage.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |