Patent US4255075A successfully refreshed from Google Patents.
US4255075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loader
Assignee: Premier Forging Press Automation Inc
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Filing: 1978-11-01
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Granted: 1981-03-10
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Expires: 1998-11-01
Abstract
Abstract A loader for a forging press or the like comprising a transfer arm movable from a work pickup station to a work receiving station. A clamp is provided on the transfer arm for clamping and unclamping the work.
Inventors
- 👤 Albert B. Babbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/90; B65G47/905; B21; B21J; B21J13/00; B21J13/08; B65G47/904
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
243 words
Loading mechanism for a forging press or the like having a work receiving station, said mechanism comprising, a work pickup station having means providing a work-supporting surface, a transfer member movable from said receiving station across said work-supporting surface to a pickup position at said pickup station and from said pickup position at said pickup station across said work-supporting surface to said receiving station, a work clamp on said transfer member, means for advancing said transfer member from said pickup position at said pickup station to said receiving station, means for closing said clamp, means for opening said clamp, conveyor means for advancing a workpiece to said work-supporting surface, a gate operative when open to admit a workpiece to said work-supporting surface, means operative to open said gate in response to the return of said transfer member to said pickup position at said pickup station, means operative to close said gate in response to the presence of a workpiece on said work-supporting surface, means operative when said transfer member is in said pickup position at said pickup station to operate said clamp closing means and said transfer member advancing means in sequence to clamp the work and advance the same to said receiving station, and means operative when said transfer member is at said receiving station to operate said clamp opening means and said transfer member returning means in sequence to release the work and return said transfer member to said pickup station.
Claim 2
Dependent Claim
243 words
Loading mechanism for a forging press or the like having a work receiving station, said mechanism comprising, a work pickup station having means providing a work-supporting surface, a transfer member movable from said receiving station across said work-supporting surface to a pickup position at said pickup station and from said pickup position at said pickup station across said work-supporting surface to said receiving station, a work clamp on said transfer member, means for advancing said transfer member from said pickup position at said pickup station to said receiving station, means for closing said clamp, means for opening said clamp, conveyor means for advancing a workpiece to said work-supporting surface, a gate operative when open to admit a workpiece to said work-supporting surface, means operative to open said gate in response to the return of said transfer member to said pickup position at said pickup station, means operative to close said gate in response to the presence of a workpiece on said work-supporting surface, means operative when said transfer member is in said pickup position at said pickup station to operate said clamp closing means and said transfer member advancing means in sequence to clamp the work and advance the same to said receiving station, and means operative when said transfer member is at said receiving station to operate said clamp opening means and said transfer member returning means in sequence to release the work and return said transfer member to said pickup station.
Claim 3
Dependent Claim
49 words
Loading mechanism as defined in claim 1, wherein said pickup station has a plurality of laterally spaced, parallel rollers having aligned grooves which together provide said work-supporting surface, said transfer member having clearances to clear said rollers when moving across said work-supporting surface to or from said pickup station.
Claim 4
Dependent Claim
41 words
Loading mechanism as defined in claim 2, wherein said transfer member has portions which extend between certain of said rollers when moving across said work-supporting surface to or from said pickup station and said clearances comprise openings in said transfer member.
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) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |