US4026177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary insulated saw blade
Assignee: LOKEY TOOL Inc
•
Filing: 1976-07-21
•
Granted: 1977-05-31
•
Expires: 1996-07-21
Abstract
Abstract An insulated saw blade for use with the automatic safety brake for rotary blade equipment, U.S. Pat. No. 3,785,230, to stabilize the capacitance field produced by the blade. The blade has an inner metallic part which is secured to the arbor of the saw an insulating ring rigidly secured to the inner part and extending completely therearound and an outer metallic ring rigidly secured to the insulating ring and having the saw teeth formed thereon. The insulating ring has a roughened surface on its opposite sides to assist in gripping the brake when applied thereto.
Inventors
- 👤 Robert C. Lokey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:09
CPC Classifications
B; B23; B23D; B23D61/00; B23D61/02; B23D61/025; B23D61/026; B27; B27B; B27B5/00; B27B5/29; B27B5/38; B27B5/381; Y; Y10; Y10S; Y10S83/00; Y10S83/01; Y10T; Y10T83/00; Y10T83/929; Y10T83/9319; Y10T83/9326; Y10T83/9372; Y10T83/9403
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
A saw blade comprising a generally circular inner metallic portion having an axial arbor bore extending therethrough, an outer metallic ring having saw teeth formed thereon spaced outwardly of the outer edge of said inner portion, and a plastic insulating ring rigidly connecting said inner portion and said outer ring.
Claim 2
Dependent Claim
50 words
A saw blade comprising a generally circular inner metallic portion having an axial arbor bore extending therethrough, an outer metallic ring having saw teeth formed thereon spaced outwardly of the outer edge of said inner portion, and a plastic insulating ring rigidly connecting said inner portion and said outer ring.
Claim 3
Dependent Claim
50 words
A device as claimed in claim 1 wherein said inner ring is provided with a plurality of radially extending U-shaped notches in the periphery thereof and said outer ring has a plurality of radially extending U-shaped notches in the inner edge thereof with said insulating ring molded into said notches.
Claim 4
Dependent Claim
32 words
A device as claimed in claim 2 wherein bores extend transversely through said inner portion and said outer ring between said respective U-shaped notches with said insulating ring molded through said bores.
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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |