US4046044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper trimmers
Assignee: Individual
•
Filing: 1975-11-20
•
Granted: 1977-09-06
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Expires: 1995-11-20
Abstract
Abstract A paper trimmer is described comprising a base board and a fixed blade set in one edge of the board, the improvement comprising a guide rail mounted above and closely spaced from the cutter blade and a carriage mounted on the guide rail, the carriage containing a cutter wheel abutting the fixed blade and adapted to be turned, as the carriage is slid on the guide, by engagement of a friction drive wheel coaxial with the cutter wheel on the upper surface of the guide rail.
Inventors
- 👤 Donald MacDougal Paterson, deceased
- 👤 executor by Alexander Robertson Brackenridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:40
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/20; B26D1/205; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/76; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7784; Y10T83/7863; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/858
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
In a paper trimmer comprising a base board and a fixed cutter blade set in one edge of the board, the improvement comprising a guide rail mounted above and closely spaced from the cutter blade and a carriage mounted on the guide rail, the carriage containing a cutter wheel abutting the fixed blade and adapted to be turned, as the carriage is slid on the guide, by engagement of a friction drive wheel, coupled to the cutter wheel, with the upper surface of the guide rail, said guide rail including means for maintaining the axis of rotation of the cutter wheel at an acute angle relative to the plane of said board.
Claim 2
Dependent Claim
112 words
In a paper trimmer comprising a base board and a fixed cutter blade set in one edge of the board, the improvement comprising a guide rail mounted above and closely spaced from the cutter blade and a carriage mounted on the guide rail, the carriage containing a cutter wheel abutting the fixed blade and adapted to be turned, as the carriage is slid on the guide, by engagement of a friction drive wheel, coupled to the cutter wheel, with the upper surface of the guide rail, said guide rail including means for maintaining the axis of rotation of the cutter wheel at an acute angle relative to the plane of said board.
Claim 3
Dependent Claim
155 words
In a paper trimmer comprising a base board and fixed cutter blade set in one edge of the board, a guide rail mounted above and closely spaced from the cutter blade and a carriage mounted on the guide rail, the carriage containing an assembly of a cutter wheel coupled to a friction drive wheel, the cutter wheel abutting the fixed blade and adapted to be turned, as the carriage is slid on the guide, by engagement of the friction drive wheel with the upper surface of the guide rail, and means maintained by said carriage and acting, together with said guide rail, on said assembly for angularly displacing said assembly to a position, dependent upon the direction of movement of said carriage on said guide, in which the leading edge of the cutter wheel is in contact with the cutter blade and the trailing edge of the cutter wheel is spaced from the cutter blade.
Claim 4
Dependent Claim
155 words
In a paper trimmer comprising a base board and fixed cutter blade set in one edge of the board, a guide rail mounted above and closely spaced from the cutter blade and a carriage mounted on the guide rail, the carriage containing an assembly of a cutter wheel coupled to a friction drive wheel, the cutter wheel abutting the fixed blade and adapted to be turned, as the carriage is slid on the guide, by engagement of the friction drive wheel with the upper surface of the guide rail, and means maintained by said carriage and acting, together with said guide rail, on said assembly for angularly displacing said assembly to a position, dependent upon the direction of movement of said carriage on said guide, in which the leading edge of the cutter wheel is in contact with the cutter blade and the trailing edge of the cutter wheel is spaced from the cutter blade.
Claim 5
Dependent Claim
43 words
The paper trimmer of claim 2 wherein said displacing means is adapted to bias the assembly of cutter wheel and drive wheel into one of two positions angularly symmetrical with respect to a plane perpendicular to the cutting edge of the cutting blade.
Claim 6
Dependent Claim
43 words
The paper trimmer of claim 3 wherein said displacing means comprises a spring positioned within said carriage, said spring being formed with two depressions therein, said depressions being adjacent to one another, each of said depressions being adapted to receive said drive wheel.
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |