US3973459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mat cutting apparatus
Assignee: Individual
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Filing: 1975-11-06
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Granted: 1976-08-10
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Expires: 1995-11-06
Abstract
Abstract A mat bevel cutting method and apparatus having a pivotal mounted cutting guide rail in conjunction with sidewalls which serve to hold the matting material in place and squared during the cutting operation. The apparatus also includes built-in auxiliary measuring and alignment tools to facilitate accurate alignment and cutting.
Inventors
- 👤 Charles Terry Stowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:22
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/3853; G; G03; G03D; G03D15/00; G03D15/04; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/7507; Y10T83/7593; Y10T83/76; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/869; Y10T83/8773; Y10T83/8821; Y10T83/8822; Y10T83/8878; Y10T83/8881
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
225 words
A picture mat cutting apparatus comprising: a baseboard having a flat upper surface for supporting matting material thereon, a straight back edge and oppositely disposed parallel side edges perpendicular to said back edge, parallel sidewalls attached to each side edge and extending upwardly above the board upper surface, a first L-shaped support arm having one end thereof pivotally secured to the outside surface of one sidewall and the free end extending over said sidewall above the board upper surface, a second substantially identical oppositely disposed L-shaped support arm having one end pivotally secured to the outside surface of the opposite sidewall and extending over said sidewall above the board upper surface, a cutter guide rail means comprising upper and lower elongated flat leaves joined along the edge to form a V-shaped cross-section and disposed parallel to the back edge of the board, the upper leaf being attached at each end to the free ends of the support arms and movable therewith so that the lower leaf is contactable with the board upper surface and the rear edge of said lower leaf extends rearwardly and the edge of the upper leaf extends upwardly and rearwardly when the guide rail is pivoted downwardly toward the board upper surface, cutting means slidably attachable to the upper leaf edge and having a cutting blade on the lower edge thereof.
Claim 2
Dependent Claim
225 words
A picture mat cutting apparatus comprising: a baseboard having a flat upper surface for supporting matting material thereon, a straight back edge and oppositely disposed parallel side edges perpendicular to said back edge, parallel sidewalls attached to each side edge and extending upwardly above the board upper surface, a first L-shaped support arm having one end thereof pivotally secured to the outside surface of one sidewall and the free end extending over said sidewall above the board upper surface, a second substantially identical oppositely disposed L-shaped support arm having one end pivotally secured to the outside surface of the opposite sidewall and extending over said sidewall above the board upper surface, a cutter guide rail means comprising upper and lower elongated flat leaves joined along the edge to form a V-shaped cross-section and disposed parallel to the back edge of the board, the upper leaf being attached at each end to the free ends of the support arms and movable therewith so that the lower leaf is contactable with the board upper surface and the rear edge of said lower leaf extends rearwardly and the edge of the upper leaf extends upwardly and rearwardly when the guide rail is pivoted downwardly toward the board upper surface, cutting means slidably attachable to the upper leaf edge and having a cutting blade on the lower edge thereof.
Claim 3
Dependent Claim
52 words
A picture mat cutting apparatus as set forth in claim 1 wherein the cutting means comprises a plate means having a slide groove for receiving the edge of the guide rail upper leaf therein, a blade holder plate attachable to the plate means and including means for securing a cutting blade therebetween.
Claim 4
Dependent Claim
94 words
A picture mat cutting apparatus as set forth in claim 1 and including a vertical groove in said baseboard upper surface extending between the sidewalls directly beneath the rear edge of the lower guide rail leaf, an angled groove disposed forward of the first groove and extending forwardly and downwardly therefrom, said angled groove adjacent to and parallel to the plane of the upper guide rail leaf, and disposed to receive the cutting blade therein, and an anti-skid material strip on the board upper surface between the grooves directly under the guide rail means.
Claim 5
Dependent Claim
109 words
A picture mat cutting apparatus as set forth in claim 3 and including an elongated groove in said baseboard upper surface along the inside surface of one said sidewall, a scale member having upper indicia surface disposed in said groove, the indicia surface being in the same plane as the board upper surface and having a 0 graduation opposite said angled groove, an elongated fence stop member slidably disposed on the board upper surface and extending between the sidewalls, said fence having a front straight edge positionable with respect to the said scale member indicia surface and means for securing the ends of the fence to the said sidewalls.
Claim 6
Dependent Claim
110 words
A picture mat cutting apparatus as set forth in claim 4 and including an auxiliary measuring tool comprising an elongated scale rod having graduations on one surface thereof, the graduations starting at 0 at one end and ascending to a preselected maximum graduation near the middle of the scale and then descending to a second 0 graduation near the opposite end, stop member secured to the end of the scale rod adjacent the second 0 graduation, and a slide block slidably disposed on the rod and having a width such that when one edge is against the stop member the other edge is in alignment with the second 0 graduation.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |