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US3889565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch press scrap cutter
Assignee: Oberg Manufacturing Co Inc
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Filing: 1974-01-04
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Granted: 1975-06-17
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Expires: 1994-01-04
Abstract
Abstract A punch press for metal strip has a lower outbound feed roll that is movable vertically toward and away from a driven upper feed roll to periodically press the strip against the upper roll. At the exit side of these rolls there is a stationary lower shear blade in a position to engage the bottom of punched strip as it leaves the rolls. A cooperating movable upper shear blade is spaced above the lower blade while the lower roll is in its upper position. Means operated by the roll-reciprocating means moves the upper blade downwardly toward the lower blade for cutting strip between them every time the lower roll is lowered.
Inventors
- 👤 John C Vecchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:05
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/08; B21D43/09; B21D43/28; B21D43/287; Y; Y10; Y10S; Y10S83/00; Y10S83/923; Y10T; Y10T83/00; Y10T83/444; Y10T83/4501; Y10T83/4503; Y10T83/4508; Y10T83/4577; Y10T83/4587; Y10T83/4592
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
The combination with a punch press for metal strip having a driven outbound feed roll, a lower roll movable vertically toward and away from the upper roll, and means for reciprocating the lower roll vertically to periodically press strip against the upper roll; of a scrap cutter comprising a stationary lower shear blade at the exit side of said rolls in a position to engage the bottom of punched strip as it leaves the rolls, a cooperating movable upper shear blade spaced above the lower blade while said lower roll is in its upper position, and means operated by said roll-reciprocating means for moving the upper blade downwardly toward the lower blade for cutting strip between them every time the lower roll is lowered.
Claim 2
Dependent Claim
124 words
The combination with a punch press for metal strip having a driven outbound feed roll, a lower roll movable vertically toward and away from the upper roll, and means for reciprocating the lower roll vertically to periodically press strip against the upper roll; of a scrap cutter comprising a stationary lower shear blade at the exit side of said rolls in a position to engage the bottom of punched strip as it leaves the rolls, a cooperating movable upper shear blade spaced above the lower blade while said lower roll is in its upper position, and means operated by said roll-reciprocating means for moving the upper blade downwardly toward the lower blade for cutting strip between them every time the lower roll is lowered.
Claim 3
Dependent Claim
57 words
The combination recited in claim 1, in which the press has a frame, said lower shear blade is rigidly connected with the side of the frame beside said lower roll, a strip support extends from said lower blade inwardly toward said rolls, and means mounted on said support guide strip passing over it to the lower blade.
Claim 4
Dependent Claim
51 words
The combination recited in claim 1, in which said blade-moving means include a vertical rod below said lower shear blade, means operatively connecting the upper end of the rod with said upper blade, and means rigidly connecting the lower end of the rod with said roll-reciprocating means below said lower roll.
Claim 5
Dependent Claim
38 words
The combination recited in claim 3, in which said roll-reciprocating means include a vertically movable rod extending downwardly from said lower roll, and said connecting means is a rigid member connecting the lower ends of the two rods.
Claim 6
Dependent Claim
90 words
The combination recited in claim 1, in which the press has a frame and includes a block secured to the side of the frame beside said lower roll, the block being provided with laterally spaced vertical openings extending downwardly therein, guide rods slidably mounted in said openings and extending above them, and means rigidly mounted on the upper ends of the rods and supporting said upper shear blade between the rods, said blade-moving means being disposed above the shear blades and connected to said rod-mounted means to reciprocate the rods.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |