Patent US3624720A successfully refreshed from Google Patents.
US3624720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable cutter
Assignee: Breeze Corp Inc
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Filing: 1970-04-27
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Granted: 1971-11-30
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Expires: 1990-04-27
Abstract
Abstract An emergency cable cutter in which opposed pistons are provided with overlapping cable-cutting blades. The blades have cablecutting openings therein through which the cable is threaded. Upon the application of pressure to the pistons they are driven toward each other causing the knife edges on the openings to sever the cable. Either of the pistons alone, can sever the cable in the event of failure of the other.
Inventors
- 👤 Elmer Laky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:36
CPC Classifications
B; B21; B21F; B21F99/00; B21F11/00; B23; B23D; B23D15/00; B23D15/12; B23D15/14; B23D15/145; B23D29/00; B23D29/002; B64; B64D; B64D1/00; B64D1/02; B64D1/04; B64D1/06; Y; Y10; Y10T; Y10T83/00; Y10T83/404; Y10T83/412; Y10T83/869; Y10T83/8821; Y10T83/8835; Y10T83/8858
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
A cable-severing device comprising an elongated housing transversely bored to receive the cable therethrough, a longitudinal bore in said housing, opposed pistons, slidably carried within the longitudinal bore, a flat blade member on each of the pistons extending outwardly thereof in the direction of the opposed piston and in overlapping relationship, a cablereceiving aperture in each of the blades, a cable-severing edge on each of the apertures and a pressure cartridge carried by the housing and in communication with each of the pistons to drive the pistons and their blades in the direction of the cable to sever the said cable.
Claim 2
Dependent Claim
101 words
A cable-severing device comprising an elongated housing transversely bored to receive the cable therethrough, a longitudinal bore in said housing, opposed pistons, slidably carried within the longitudinal bore, a flat blade member on each of the pistons extending outwardly thereof in the direction of the opposed piston and in overlapping relationship, a cablereceiving aperture in each of the blades, a cable-severing edge on each of the apertures and a pressure cartridge carried by the housing and in communication with each of the pistons to drive the pistons and their blades in the direction of the cable to sever the said cable.
Claim 3
Dependent Claim
23 words
A device according to claim 1 in which the ends of the blades opposite the pistons are provided with arcuate upstanding guide portions.
Claim 4
Dependent Claim
59 words
A device according to claim 1 in which one end of the longitudinal housing bore is closed by a wall, the opposite end of the bore is closed by the pressure cartridge and a bore is provided in the side of the housing in communication with the longitudinal bore adjacent the end wall to receive a second pressure cartridge.
Claim 5
Dependent Claim
34 words
A device according to claim 1 in which the piston blades are prevented from accidental contact with the cable by shearpins carried by the housing and received within radial bores in the said pistons.
Claim 6
Dependent Claim
24 words
A device according to claim 1 in which the cutting edges of the blades move along substantially the same plane during the severing action.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |