US4512174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined sheet bending brake and platform
Assignee: Tapco Products Co Inc
•
Filing: 1982-06-07
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Granted: 1985-04-23
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Expires: 2002-06-07
Abstract
Abstract A combined sheet bending brake and platform comprising a base, first and second bending members hinged to one another, an anvil member for clamping a work piece of sheet material on the first member such that moving the second member relative to the first member will bend the sheet material and a platform extending longitudinally for at least a portion of the length of the sheet bending brakes along the base generally parallel and opposite to the hinge axis of the two members such that the area overlying the brake is generally unobstructed.
Inventors
- 👤 James J. Rhoades
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:28
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/04; B21D5/042
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
197 words
A combined sheet bending brake and platform comprising a base, first and second bending members hinged to one another and mounted on the base, an anvil member attached to the first bending member for clamping a workpiece of sheet material on said first member such that moving the second member relative to the first member will bend the sheet material, said first and second bending members and anvil member extending longitudinally and horizontally, the longitudinal extend of the members constituting the length of the sheet bending brake with said hinge axis extending parallel to said sheet bending brake length, and a platform for workpieces and the like extending longitudinally for at least a portion of the length of the sheet bending brake along the base generally parallel and opposite to the hinge axis of the two members such that the area overlying the brake is generally unobstructed, said platform being movable horizontally between an extended position extending rearwardly of the brake away from the hinge axis and a position toward the hinge axis within the confines of the brake the movement of said platform being movable in a direction transverse to the longitudinal extent of the platform.
Claim 2
Dependent Claim
197 words
A combined sheet bending brake and platform comprising a base, first and second bending members hinged to one another and mounted on the base, an anvil member attached to the first bending member for clamping a workpiece of sheet material on said first member such that moving the second member relative to the first member will bend the sheet material, said first and second bending members and anvil member extending longitudinally and horizontally, the longitudinal extend of the members constituting the length of the sheet bending brake with said hinge axis extending parallel to said sheet bending brake length, and a platform for workpieces and the like extending longitudinally for at least a portion of the length of the sheet bending brake along the base generally parallel and opposite to the hinge axis of the two members such that the area overlying the brake is generally unobstructed, said platform being movable horizontally between an extended position extending rearwardly of the brake away from the hinge axis and a position toward the hinge axis within the confines of the brake the movement of said platform being movable in a direction transverse to the longitudinal extent of the platform.
Claim 3
Dependent Claim
43 words
The combined sheet bending brake set forth in claim 1 wherein said platform comprises a tubular bar which is generally U-shaped and includes spaced legs and a cross-portion, the spaced legs telescoping through openings in the base extending transversely of the hinge axis.
Claim 4
Dependent Claim
25 words
The combined sheet bending brake and platform set forth in claim 2 wherein means are provided for locking the platform in extended or retracted position.
Claim 5
Dependent Claim
37 words
The sheet bending brake platform set forth in claim 3 wherein said last mentioned means comprises spaced openings in each leg and lock pins insertable in selected openings to hold the platform in extended or retracted position.
Claim 6
Dependent Claim
164 words
The combined sheet bending brake and platform set forth in claim 1 wherein said brake comprises a plurality of generally C-shaped frame members, each said frame member including a long lower arm and a short upper arm overlying the lower arm, said base including a rear rail on said frame members and fastened thereto, said first member defining a clamping surface extending longitudinally, and being mounted on said lower arm, a bar individual to each said frame member and having its rear end pivoted to said frame member adjacent the rear of said upper arm, said anvil mamber extending longitudinally of said sheet bending brake and fixed to said bars, means for moving said anvil member into and out of clamping position, said platform being telescopically mounted on said rear rail for movement transversely and horizontally between an extended position extending rearwardly of the brake and away from the hinge axis and a position toward the hinge axis within the confines of the brake.
Claim 7
Dependent Claim
39 words
The combined sheet bending brake set forth in claim 5 wherein said platform comprises a tubular bar which is generally U-shaped and includes spaced legs and a cross-portion, the spaced legs telescoping through transverse openings in the rear rail.
Claim 8
Dependent Claim
25 words
The combined sheet bending brake and platform set forth in claim 6 wherein means are provided for locking the platform in extended or retracted position.
Claim 9
Dependent Claim
37 words
The sheet bending brake platform set forth in claim 7 wherein said last mentioned means comprises spaced openings in each leg and lock pins insertable in selected openings to hold the platform in extended or retracted position.
Claim 10
Dependent Claim
22 words
The sheet bending brake set forth in claim 1 wherein said platform comprises spaced legs telescoped through transverse openings in said base.
Claim 11
Dependent Claim
22 words
The sheer bending brake set forth in claim 9 wherein means are provided for locking the legs in extended or retracted position.
Claim 12
Dependent Claim
35 words
The sheet bending brake set forth in claim 10 wherein said last-mentioned means comprises spaced openings in each leg and lock pins insertable in selected openings to hold the platform in extended or retracted position.
Claim 13
Dependent Claim
21 words
The sheet bending brake set forth in claim 5 wherein said platform comprises spaced legs telescoped through openings in said base.
Claim 14
Dependent Claim
22 words
The sheet bending brake set forth in claim 12 wherein means are provided for locking the legs in extended or retracted position.
Claim 15
Dependent Claim
35 words
The sheet bending brake set forth in claim 13 wherein said last-mentioned means comprises spaced openings in each leg and lock pins insertable in selected openings to hold the platform in extended or retracted position.
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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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |