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Patent US3662634A successfully refreshed from Google Patents.
US3662634A
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US
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Hydrostatically powered messenger style wire cutter
Assignee: United States Atomic Energy Commission
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Filing: 1970-12-18
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Granted: 1972-05-16
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Expires: 1990-12-18
Abstract
Abstract A hydrostatically actuated messenger type wire cutter for severing wire below the surface of a body of water consisting of a slide having an assembly for actuating a cutting tool to sever or weaken the wire at a preselected depth. A rupture disk collapses at the preselected depth, permitting water pressure to react against a piston carrying the cutting edge.
Inventors
- 👤 John C Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:15
CPC Classifications
B; B21; B21F; B21F99/00; B21F11/00; B23; B23D; B23D15/00; B23D15/12; B23D15/14; B23D29/00; B23D29/002; B63; B63B; B63B21/00; B63B21/56; B63B21/58; B63B21/60; E; E21; E21B; E21B29/00; E21B29/04; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/869; Y10T83/8821; Y10T83/8858
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A hydrostatically actuated messenger type wire cutter comprising: a. means for being mounted slidably on said wire; b. cylinder means on the mounting means containing a piston; c. cutting means extending from said piston in the direction of said wire; and d. means responsive to water pressure at a preselected depth for driving said piston and cutting means into cutting contact with said wire, to at least weaken the latter.
Claim 2
Dependent Claim
70 words
A hydrostatically actuated messenger type wire cutter comprising: a. means for being mounted slidably on said wire; b. cylinder means on the mounting means containing a piston; c. cutting means extending from said piston in the direction of said wire; and d. means responsive to water pressure at a preselected depth for driving said piston and cutting means into cutting contact with said wire, to at least weaken the latter.
Claim 3
Dependent Claim
23 words
The wire cutter of claim 1 in which the driving means includes a rupture disk which fails at said preselected depth of water.
Claim 4
Dependent Claim
21 words
The wire cutter of Claim 2 in which said piston is actuated by said water passing through the collapsed rupture disk.
Claim 5
Dependent Claim
42 words
The wire cutter of claim 3 in which the driving means includes means for supporting said rupture disk, said supporting means being removable so as to permit use of another rupture disk designed to fail at a different preselected depth of water.
References Cited (Backward Citations)
US3606812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |