US3724010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool
Assignee: Individual
•
Filing: 1971-09-27
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Granted: 1973-04-03
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Expires: 1991-09-27
Abstract
Abstract A hand operated tool for cutting and trimming mounted wall covering materials including paper, cloth, canvas, vinyl plastic, cork and the like. A large wiper blade for smoothing out the covering materials is provided with at least two marginal guide means which cooperate with an adjacent wall in guiding the tool for linear movement along the intersection of two walls. A knife blade is mounted in a holder fastened to the wiper blade in position to project beyond one corner of the wiper blade and guide means in accordance with the desired depth of cut, as dictated by the thickness of the covering material, and to dispose the cutting edge thereof at a proper angle for smoothly severing the covering material.
Inventors
- 👤 A Scholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:23
CPC Classifications
B; B26; B26B; B26B11/00; B26B11/006; B25; B25F; B25F1/00; B25F1/02; B26B5/00; B26B5/005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
A hand tool for laying and trimming wall covering materials comprising: a wiper blade having a planar body formed with an elongated linear wiper margin engageable with wall covering materials for smoothing the latter when mounting the same on a wall, first guide means extending along said margin and comprising an elongated planar lip projecting angularly outwardly of the plane of said blade body whereby to align the latter in angular disposition to a planar wall engaged by said guide means, knife blade means having a sharp cutting edge removably mounted on said wiper blade adjacent said margin and guide means, and holder means for securing said knife blade means in selected position relative to said margin so as to expose selected portions of said cutting edge thereof beyond said margin and at selected angles relative thereto.
Claim 2
Dependent Claim
137 words
A hand tool for laying and trimming wall covering materials comprising: a wiper blade having a planar body formed with an elongated linear wiper margin engageable with wall covering materials for smoothing the latter when mounting the same on a wall, first guide means extending along said margin and comprising an elongated planar lip projecting angularly outwardly of the plane of said blade body whereby to align the latter in angular disposition to a planar wall engaged by said guide means, knife blade means having a sharp cutting edge removably mounted on said wiper blade adjacent said margin and guide means, and holder means for securing said knife blade means in selected position relative to said margin so as to expose selected portions of said cutting edge thereof beyond said margin and at selected angles relative thereto.
Claim 3
Dependent Claim
45 words
The invention of claim 1, and at least one additional linear margin on said wiper blade body, intersecting said wiper margin, second guide means extending along said additional margin and having a planar lip portion projecting angularly outwardly of the plane of said blade body.
Claim 4
Dependent Claim
44 words
The invention of claim 2 and wherein said holder means cooperates with said additional margin and second guide means to selectively expose portions of a second cutting edge formed on said knife blade means beyond said second margin and at selected angles relative thereto.
Claim 5
Dependent Claim
36 words
The invention of claim 1 wherein said holder means is mounted on one face of said wiper blade body and serves to maintain said knife blade means in adjacent contacting parallelism wIth the said one face.
Claim 6
Dependent Claim
45 words
The invention of claim 1 and handle means projecting from a third margin of said wiper blade opposite said wiper margin thereof, said handle means extending outwardly of said third margin and providing means for hand gripping engagement by a human operator of the tool.
Claim 7
Dependent Claim
79 words
The invention of claim 1 wherein said holder means comprises a rigid elongated body member having a recessed socket formed in one face thereof, which socket is receptive of said knife blade means is of a depth substantially equal to the thickness of said knife blade means; said socket being bounded on three sides by skirt wall margins with said blade means having a portion thereof extending beyond one end of said socket when mounted in said holder means.
Claim 8
Dependent Claim
69 words
The invention of claim 1 wherein said holder means comprises an elongated rigid member having a generally planar body provided with a blade holding socket recess in one face and an opening therethrough, said wiper blade body having an elongated slotted opening formed adjacent said wiper margin, and bolt fastener means mountable through the said opening in said holder means and said slotted opening in said wiper blade body.
Claim 9
Dependent Claim
17 words
The invention of claim 1 wherein said guide means comprises an integral portion of said blade body.
Claim 10
Dependent Claim
48 words
The invention of claim 1 wherein said guide means comprises an elongated rigid member having a planar body portion and a planar lip portion disposed in angular relation to said body portion, and means for rigidly attaching said body portion thereof to one face of said wiper blade.
Claim 11
Dependent Claim
17 words
The invention of claim 2 wherein said guide means are integrally formed with said wiper blade body.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |