Patent US3099412A successfully refreshed from Google Patents.
Patent US3604028A successfully refreshed from Google Patents.
US3604028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rescue axe
Assignee: Individual
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Filing: 1969-01-08
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Granted: 1971-09-14
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Expires: 1989-01-08
Abstract
Abstract A combination tool for use by wreckers, firemen, and other rescue workers in cutting through sheet metal structures, such as wrecked automobiles, to make an opening through which trapped persons can escape. The tool comprises an elongated handle having a pointed axe blade and sledge hammer head at one end, together with metal-gripping means whereby the blade can be driven into sheet metal and then worked with a lever action in the manner of a can opener, to cut an opening in the sheet metal. The sledge hammer head lends mass to the axe blade, and also provides means for breaking solid obstacles, or for driving stakes. At the other end of the handle is a pry bar.
Inventors
- 👤 Jerry Wardwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:09
CPC Classifications
B; B26; B26B; B26B23/00; B25; B25F; B25F1/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
A rescue axe for use by wreckers, firemen, and other rescue workers, comprising: an elongated handle having an axe blade at one end thereof, said axe blade having a first edge disposed generally perpendicular to the longitudinal axis of said handle; and a second edge extending from the outer edge of said first edge to a point adjacent the handle; said second edge facing toward the other end of said handle and being sharpened to form a cutting edge; said first and second edges coming together at a sharp point for penetrating sheet metal and the like; and gripping means provided on opposite sides of said blade, said gripping means being operable to bite into the sheet metal when said blade has been driven all the way in and said handle has been rocked forwardly, thereby preventing said blade from sliding in the direction away from said cutting edge while said handle is rocked further forwardly to rotate said blade about said gripping means as a fulcrum, said cutting edge being raised and advanced through said sheet metal by said rotation, thereby causing the cutting edge to shear through the sheet metal.
Claim 2
Dependent Claim
192 words
A rescue axe for use by wreckers, firemen, and other rescue workers, comprising: an elongated handle having an axe blade at one end thereof, said axe blade having a first edge disposed generally perpendicular to the longitudinal axis of said handle; and a second edge extending from the outer edge of said first edge to a point adjacent the handle; said second edge facing toward the other end of said handle and being sharpened to form a cutting edge; said first and second edges coming together at a sharp point for penetrating sheet metal and the like; and gripping means provided on opposite sides of said blade, said gripping means being operable to bite into the sheet metal when said blade has been driven all the way in and said handle has been rocked forwardly, thereby preventing said blade from sliding in the direction away from said cutting edge while said handle is rocked further forwardly to rotate said blade about said gripping means as a fulcrum, said cutting edge being raised and advanced through said sheet metal by said rotation, thereby causing the cutting edge to shear through the sheet metal.
Claim 3
Dependent Claim
167 words
A rescue axe as set forth in claim 1 in which there is a sledge hammer head mounted on said one end of said handle on the side opposite said blade, said sledge hammer head being set back from said first edge of said blade so that the outer face of the head is located between said first and second edges; and said gripping means comprising spurs projecting outwardly from the outer face of said hammer head substantially in line with said handle, said spurs being operable to bite into the sheet metal when said blade has been driven all the way in and said handle has been rocked forwardly, thereby preventing said blade From sliding in the direction away from said cutting edge while said handle is rocked further forwardly to rotate said blade about said gripping spurs as a fulcrum, said cutting edge being raised and advanced through said sheet metal by said rotation, thereby causing the cutting edge to shear through the sheet metal.
Claim 4
Dependent Claim
35 words
A rescue axe as set forth in claim 2 wherein the other end of said handle is tapered to a long, flat wedge, said handle and said wedge- shaped other end forming a pry bar.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |