US4003476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press Loader
Assignee: BENRUTH ENGR AND Manufacturing CO Inc
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Filing: 1975-11-21
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Granted: 1977-01-18
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Expires: 1995-11-21
Abstract
Abstract A press loader is disclosed having two reciprocating tables. One table is unloaded and loaded while the press is acting upon the other table and the position of the tables is then reversed for a repitition of the operation.
Inventors
- 👤 Ben G. Laskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:32
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A press loader comprising in combination: a. a first table having long flanges at both ends thereof, b. a second table having short flanges at both ends thereof, c. means associated with said long and short flanges for mounting both tables for simultaneous reciprocating motion on parallel tracks whereby both tables can slide back and forth in overlapping relationship, d. a loading station at one end of said tracks and a press operation station at the opposite end of said tracks, e. means for moving one table to said loading station and the other table to said press operation station and means for reversing the positions of said tables.
Claim 2
Dependent Claim
109 words
A press loader comprising in combination: a. a first table having long flanges at both ends thereof, b. a second table having short flanges at both ends thereof, c. means associated with said long and short flanges for mounting both tables for simultaneous reciprocating motion on parallel tracks whereby both tables can slide back and forth in overlapping relationship, d. a loading station at one end of said tracks and a press operation station at the opposite end of said tracks, e. means for moving one table to said loading station and the other table to said press operation station and means for reversing the positions of said tables.
Claim 3
Dependent Claim
94 words
The press loader of claim 1 wherein the means for moving the tables includes the following: a. a cross bar under said tables, b. means to move said bar up and down, c. toggle links extending from said cross bar to said tables whereby d. downward movement of said bar causes said tables to move into overlapping relationship and inertia causes said tables to pass over the dead center of said toggle links and reverse positions and upward motion of said bar causes said tables to move to the opposite ends of said tracks.
Claim 4
Dependent Claim
59 words
The press loader of claim 2 wherein said tracks are split into two portions, namely a first fixed portion at the loading station and a movable portion adjacent the press operation station and means for moving said movable portion to an upper position in line with the fixed portion and for moving said movable portion to a lower portion.
Claim 5
Dependent Claim
42 words
The press loader of claim 3 having a frame member under the movable portion of said track and means for supporting a table on said movable portion of track and said frame member when the frame member is in the lower position.
Claim 6
Dependent Claim
26 words
The press loader of claim 3 wherein pneumatic cylinders are employed to reciprocate said tables and to raise and lower said movable portions of said tracks.
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) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |