US3880034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential stamping of strip material
Assignee: Gulf and Western Manufacturing Co
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Filing: 1974-05-03
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Granted: 1975-04-29
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Expires: 1994-05-03
Abstract
Abstract A method and apparatus for feeding to a fixed-axis punch, successive sections of a strip of flexible material for the purpose of punching out from the strip plates of a predetermined size and shape, said strip being punched out in a staggered pattern along three rows of axes which are parallel to the median longitudinal axis of the strip. The invention is applicable, in particular, to the stamping out of circular plates of identical diameter from a thin metal strip, which plates are to be shaped in their final form by successive stampings performed by a series of inter-related punches located in a transfer machine.
Inventors
- 👤 Roger Sapolsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:42
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/02; B21D28/06; B21D28/08; B21D43/00; B21D43/02; B21D43/021; B21D43/023; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0505; Y10T83/051; Y10T83/444; Y10T83/4486; Y10T83/4488; Y10T83/4523; Y10T83/4534; Y10T83/4539; Y10T83/485; Y10T83/494; Y10T83/50
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
229 words
Apparatus for feeding and indexing continuous strip relative to a material working device such as a punch or the like whereby said device may sequentially operate along three parallel longitudinal axes of said strip, comprising, in combination: A. means for feeding said strip in increments, B. means for supporting said strip in operative position adjacent said material working device, C. indexing means comprising 1. a platform for supporting said strip, 2. means for holding said strip to said platform between successive incremental feeds thereof, 3. lateral guide means for guiding said strip over said platform, 4. drive means for sequentially and cyclically indexing said platform and the strip thereon between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said material working device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, and the third said position being one in which the median longitudinal axis of said strip is aligned with said material working device, and D. means for synchronizing and coordinating the feed of said strip, the actuation of said material working device and the operation of said drive means.
Claim 2
Dependent Claim
229 words
Apparatus for feeding and indexing continuous strip relative to a material working device such as a punch or the like whereby said device may sequentially operate along three parallel longitudinal axes of said strip, comprising, in combination: A. means for feeding said strip in increments, B. means for supporting said strip in operative position adjacent said material working device, C. indexing means comprising 1. a platform for supporting said strip, 2. means for holding said strip to said platform between successive incremental feeds thereof, 3. lateral guide means for guiding said strip over said platform, 4. drive means for sequentially and cyclically indexing said platform and the strip thereon between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said material working device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, and the third said position being one in which the median longitudinal axis of said strip is aligned with said material working device, and D. means for synchronizing and coordinating the feed of said strip, the actuation of said material working device and the operation of said drive means.
Claim 3
Dependent Claim
13 words
means for holding said strip to said platform between successive incremental feeds thereof,
Claim 4
Dependent Claim
13 words
means for holding said strip to said platform between successive incremental feeds thereof,
Claim 5
Dependent Claim
68 words
Apparatus as defined in claim 1 wherein said drive means comprises at least one hydraulic drive jack, the shaft of which is connected with said platform, said first and second positions of said platform being achieved at one or the other of the fully extended or fully retracted positions of said shaft, said third position of said platform being achieved at the median extended position of said shaft.
Claim 6
Dependent Claim
13 words
means for holding said strip to said platform between successive incremental feeds thereof,
Claim 7
Dependent Claim
13 words
means for holding said strip to said platform between successive incremental feeds thereof,
Claim 8
Dependent Claim
10 words
lateral guide means for guiding said strip over said platform,
Claim 9
Dependent Claim
10 words
lateral guide means for guiding said strip over said platform,
Claim 10
Dependent Claim
37 words
Apparatus as defined in claim 2 including two such hydraulic jacks, symmetrically connected to said platform about a median plane oriented transverse to the direction of strip feed thereover and parallel to the direction of platform movement.
Claim 11
Dependent Claim
10 words
lateral guide means for guiding said strip over said platform,
Claim 12
Dependent Claim
10 words
lateral guide means for guiding said strip over said platform,
Claim 13
Dependent Claim
133 words
drive means for sequentially and cyclically indexing said platform and the strip thereon between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said material working device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, and the third said position being one in which the median longitudinal axis of said strip is aligned with said material working device, and D. means for synchronizing and coordinating the feed of said strip, the actuation of said material working device and the operation of said drive means.
Claim 14
Dependent Claim
133 words
drive means for sequentially and cyclically indexing said platform and the strip thereon between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said material working device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, and the third said position being one in which the median longitudinal axis of said strip is aligned with said material working device, and D. means for synchronizing and coordinating the feed of said strip, the actuation of said material working device and the operation of said drive means.
Claim 15
Dependent Claim
20 words
Apparatus as defined in claim 2 including positioning means affording precise location of said platform in said third, median position.
Claim 16
Dependent Claim
204 words
drive means comprising at least one hydraulic drive jack, the shaft of which is connected with said platform, for sequentially and cyclicallY indexing said platform between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, said first and second positions being achieved at one or the other of the fully extended or fully retracted positions of said shaft, and the third said position being one in which the median longitudinal axis of said strip is aligned with said device, said third position being achieved at the median extended position of said shaft, D. shock absorbing means interacting with said platform at each of said three positions to suppress vibrations resulting from the abrupt stop of said platform at each said position, and E. means for synchronizing and coordinating the feed of said strip, the actuation of said device and the operation of said drive means.
Claim 17
Dependent Claim
204 words
drive means comprising at least one hydraulic drive jack, the shaft of which is connected with said platform, for sequentially and cyclicallY indexing said platform between three positions, the first said position being one in which a first longitudinal axis of said strip lying to one side of the median longitudinal axis thereof is aligned with said device, the second said position being one in which a second longitudinal axis of said strip lying to the other side of the median longitudinal axis thereof and equidistant therefrom is aligned with said material working device, said first and second positions being achieved at one or the other of the fully extended or fully retracted positions of said shaft, and the third said position being one in which the median longitudinal axis of said strip is aligned with said device, said third position being achieved at the median extended position of said shaft, D. shock absorbing means interacting with said platform at each of said three positions to suppress vibrations resulting from the abrupt stop of said platform at each said position, and E. means for synchronizing and coordinating the feed of said strip, the actuation of said device and the operation of said drive means.
Claim 18
Dependent Claim
57 words
Apparatus as defined in claim 4 wherein said positioning means comprises a hydraulic positioning jack mounted parallel to said drive jack, the end of the shaft of said positioning jack when fully extended being in position to make contact with said platform, and being of a length to accurately stop said platform in said third, median position.
Claim 19
Dependent Claim
35 words
Apparatus as defined in claim 1 including shock absorbing means interacting with said platform at each of said three positions to suppress vibrations resulting from the abrupt stop of said platform at each said position.
Claim 20
Dependent Claim
55 words
Apparatus for feeding and indexing continuous strip relative to a stamping device whereby said device may sequentially operate along three parallel longitudinal axis of said strip, comprising, in combination: A. means for feeding said strip in increments, B. means for supporting said strip in operative position adjacent said material working device, C. indexing means comprising
Claim 21
Dependent Claim
55 words
Apparatus for feeding and indexing continuous strip relative to a stamping device whereby said device may sequentially operate along three parallel longitudinal axis of said strip, comprising, in combination: A. means for feeding said strip in increments, B. means for supporting said strip in operative position adjacent said material working device, C. indexing means comprising
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |