US3691601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hose clamps
Assignee: Oherg Manufacturing Co Inc
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Filing: 1971-03-26
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Granted: 1972-09-19
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Expires: 1991-03-26
Abstract
Abstract A metal strip having a width equal to the length of each hose clamp that is to be cut from it is fed forward intermittently. While the strip is stationary parallel slots are punched in it in parallel rows extending transversely of it, with the ends of the rows spaced from the edges of the strip. Strip material between each edge of the strip and the adjacent ends of alternate rows of the slots is stamped out to leave a row of heads along each edge of the strip staggered relative to those along the opposite edge. The head are provided with lugs extending in opposite directions lengthwise of the strip. The lugs are then bent up and an openbottom screw housing is placed on each head. The screw housings have wide flanges provided with openings receiving the lugs, which are then bent down against the flanges to lock the housings on the heads. After this last operation the strip is fed ahead and severed transversely midway between the leading row of slots and the next succeeding row to form a hose clamp band with a screw housing secured to one end.
Inventors
- 👤 Robert J Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:45
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/36; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49789; Y10T29/49798; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
193 words
A method of making hose clamps, comprising intermittently feeding forward a metal strip having a width equal to the length of each hose clamp band to be cut from it, punching groups of parallel slots in the strip in parallel rows extending transversely of the strip, the ends of said rows being spaced from the edges of the strip, stamping out the strip material between each edge of the strip and the adjacent ends of alternate rows of said slots to form a row of notches along each edge of the strip staggered relative to those along the opposite edge, the notches in each row being shaped to leave heads between them provided with lugs extending in opposite directions lengthwise of the strip, bending up said lugs, placing on each head an openbottom screw housing having side flanges provided with openings receiving the head''s lugs, bending the lugs down against said flanges to lock the housing on the head, feeding the strip ahead, and severing the strip transversely midway between the leading row of slots and the next succeeding row to form a hose clamp band with a screw housing at one end.
Claim 2
Independent Claim
193 words
A method of making hose clamps, comprising intermittently feeding forward a metal strip having a width equal to the length of each hose clamp band to be cut from it, punching groups of parallel slots in the strip in parallel rows extending transversely of the strip, the ends of said rows being spaced from the edges of the strip, stamping out the strip material between each edge of the strip and the adjacent ends of alternate rows of said slots to form a row of notches along each edge of the strip staggered relative to those along the opposite edge, the notches in each row being shaped to leave heads between them provided with lugs extending in opposite directions lengthwise of the strip, bending up said lugs, placing on each head an openbottom screw housing having side flanges provided with openings receiving the head''s lugs, bending the lugs down against said flanges to lock the housing on the head, feeding the strip ahead, and severing the strip transversely midway between the leading row of slots and the next succeeding row to form a hose clamp band with a screw housing at one end.
Claim 3
Dependent Claim
58 words
A method according to claim 1, in which each time the strip is fed forward it is moved a distance equal to the width of two hose clamp bands, and the strip also is severed midway between said next succeeding row of slots and the following row, whereby two hose clamp bands are cut from the strip simultaneously.
Claim 4
Dependent Claim
24 words
A method according to claim 1, including placing a tightening screw in each screw housing before the housing is applied to the underlying head.
Claim 5
Dependent Claim
25 words
A method according to claim 1, including punching rectangular openings in the strip in positions that will locate them in the centers of the heads.
Claim 6
Dependent Claim
111 words
A method according to claim 1, including first punching rectangular openings in the strip in positions that will locate them in the centers of the subsequently formed heads, placing a tightening screw in each screw housing before the housing is applied to the underlying head, the diameter of the screw being such that its thread will project down into the head opening, moving the strip forward a distance equal to twice the width of said band each time the strip is fed forward, and also severing the strip midway between said next succeeding row of slots and the following row, whereby to simultaneously cut two hose clamp bands from the strip.
References Cited (Backward Citations)
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US3061338A
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |