US4062391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety guard
Assignee: Individual
•
Filing: 1976-11-11
•
Granted: 1977-12-13
•
Expires: 1996-11-11
Abstract
Abstract A safety guard for use with a woodworking machine comprising a transparent enclosure configured to substantially enclose the cutting tool of the woodworking machine. An elongated pressure member is formed on the lower portion of the outer wall to engage the workpiece. A plurality of inclined interrupted teeth extend along the lower edge of the elongated pressure member to engage the workpiece to prevent the workpiece from being thrown back into the operator.
Inventors
- 👤 Vincent Piazzola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
B; B27; B27G; B27G21/00; Y; Y10; Y10T; Y10T408/00; Y10T408/96; Y10T408/98; Y10T409/00; Y10T409/30; Y10T409/30392; Y10T74/00; Y10T74/21; Y10T74/219
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
A safety guard for use with a woodworking machine, said safety guard comprising an enclosure to substantially enclose the cutting tool of the woodworking machine, said enclosure comprising a substantially horizontal base plate, a substantially vertical pressure plate extending downwardly from the outer edge of said substantially horizontal base plate and a pair of end plates attached to opposite ends of said base plate and said pressure plate, said substantially vertical pressure plate having an elongated pressure member formed on the lower portion thereof, said elongated pressure member comprises a plurality of interrupted teeth being held in fixed spaced relation relative to the woodworking machine to engage the workpiece along the direction of travel during operation.
Claim 2
Dependent Claim
116 words
A safety guard for use with a woodworking machine, said safety guard comprising an enclosure to substantially enclose the cutting tool of the woodworking machine, said enclosure comprising a substantially horizontal base plate, a substantially vertical pressure plate extending downwardly from the outer edge of said substantially horizontal base plate and a pair of end plates attached to opposite ends of said base plate and said pressure plate, said substantially vertical pressure plate having an elongated pressure member formed on the lower portion thereof, said elongated pressure member comprises a plurality of interrupted teeth being held in fixed spaced relation relative to the woodworking machine to engage the workpiece along the direction of travel during operation.
Claim 3
Dependent Claim
19 words
The safety guard of claim 1 wherein said plurality of interrupted teeth are inclined along the direction of travel.
Claim 4
Dependent Claim
11 words
The safety guard of claim 1 wherein said enclosure is transparent.
Claim 5
Dependent Claim
140 words
The safety guard of claim 1 wherein said plurality of interrupted teeth are inclined along the direction of travel and further including means to selectively adjust the vertical separation between the woodworking machine and said elongated pressure member said means to selectively adjust the vertical between the woodworking machine and said elongated pressure member comprises a pair of slots formed in said substantially horizontal base plate, a pair of coresponding vertical supports extending downwardly from through said slots and two pair of fastening means, one pair of fastening means attached to each said vertical support on opposite sides of said base plate, the lower portions of each said pair of corresponding vertical supports being coupled to the woodworking machine, said pair of slots each comprising an elongated aperture to permit lateral adjustment of said enclosure relative to the woodworking machine.
Claim 6
Dependent Claim
90 words
The safety guard of claim 1 further including means to selectively adjust the vertical separation between the woodworking machine and said elongated pressure member said means comprising a pair of slots formed in said substantially horizontal base plate, a pair of corresponding vertical supports extending downwardly through said slots and two pair of fastening means, one pair of fastening means attached to each said vertical support on opposite sides of said base plate, the lower portion of each said pair of corresponding vertical supports being coupled to the woodworking machine.
Claim 7
Dependent Claim
28 words
The safety guard of claim 5 wherein said pair of slots each comprises an elongated aperture to permit lateral adjustment of said enclosure relative to the woodworking machine.
References Cited (Backward Citations)
US727530A
Cited
US2742063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |