US3772956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edger saw guide plug
Assignee: Individual
•
Filing: 1971-05-05
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Granted: 1973-11-20
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Expires: 1991-05-05
Abstract
Abstract A vibration damping means for circular saws in which guide plug pairs straddle saw at peripherally spaced positions in plug holder. Two plug pairs are spaced diametrically opposite to each other at leading and following positions, a third pair being at about 70* from leading edge pair towards following pair. Plugs are held in holder by pinch bolt means, or are held by expanding plugs radially by pipe threaded stud screwed into pipe threaded bore in plug, the plug having radial slot for expansion.
Inventors
- 👤 J Mcmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:42
CPC Classifications
B; B23; B23D; B23D59/00; B23D59/02; B23D59/025; B23D47/00; B23D47/005; B23Q; B23Q11/00; B23Q11/0032; B23Q11/10; B27; B27B; B27B25/00; B27B25/02; B27B5/00; B27B5/02; B27B5/06; B27B5/063; B27B5/29; B27B5/30; B27B5/34; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2077; Y10T83/647; Y10T83/6584; Y10T83/6587; Y10T83/6588; Y10T83/659; Y10T83/768; Y10T83/7872; Y10T83/7876; Y10T83/869; Y10T83/8878; Y10T83/8886; Y10T83/8889
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
178 words
Vibration damping means for a circular saw, the means including a blade guide holder secured to a support, the holder being generally U-shaped in section and having opposite sides spaced to accommodate the saw, the guide holders having lower ends having a leading opening provided in each side and opposite lower ends having a following opening provided in each side, the openings being spaced radially inwards clear of throats of the teeth and having side walls, each opening accepting a guide plug of a guide plug pair, inner faces of the plugs being spaced oppositely on either side of the saw and disposed at a small clearance from opposite surfaces of the saw, each plug having: a. a central bore having a pipe thread, b. a radial slot extending to the central bore from an outer periphery of the plug, c. a pipe threaded stud adapted to be screwed into the central bore, so that tightening of the stud expands the plug against the sidewall of the opening so as to provide means of adjusting the small clearance.
Claim 2
Dependent Claim
178 words
Vibration damping means for a circular saw, the means including a blade guide holder secured to a support, the holder being generally U-shaped in section and having opposite sides spaced to accommodate the saw, the guide holders having lower ends having a leading opening provided in each side and opposite lower ends having a following opening provided in each side, the openings being spaced radially inwards clear of throats of the teeth and having side walls, each opening accepting a guide plug of a guide plug pair, inner faces of the plugs being spaced oppositely on either side of the saw and disposed at a small clearance from opposite surfaces of the saw, each plug having: a. a central bore having a pipe thread, b. a radial slot extending to the central bore from an outer periphery of the plug, c. a pipe threaded stud adapted to be screwed into the central bore, so that tightening of the stud expands the plug against the sidewall of the opening so as to provide means of adjusting the small clearance.
Claim 3
Dependent Claim
61 words
Vibration damping means as claimed in claim 1 in which i. the leading and following openings are diametrically opposite, and ii. the holder has a third pair of oppositely disposed openings, the third pair of openings being disposed at between 65* and 75* from the leading opening towards the following opening, the third pair of openings accepting a similar plug pair.
Claim 4
Dependent Claim
23 words
Vibration damping means as claimed in claim 1 in which i. the radial slot of the guide plug extends beyond the central bore.
Claim 5
Dependent Claim
30 words
Vibration damping means as claimed in claim 1 in which i. the sidewalls of the openings in the holder are cylindrical, and ii. the guide plugs have complementary cylindrical sidewalls.
Claim 6
Dependent Claim
25 words
Vibration damping means as claimed in claim 4 in which i. the guide plug has a diameter essentially equal to the diameter of the opening.
Claim 7
Dependent Claim
31 words
Vibration damping means as claimed in claim 3 in which j. the radial slot of the guide extends a total length of about three-quarters of the diameter of the guide plug.
Claim 8
Dependent Claim
21 words
Vibration damping means as claimed in claim 1 in which i. the openings are concentric about an axis of the saw.
Claim 9
Dependent Claim
10 words
Vibration damping means as claimed in claim 1 in which
Claim 10
Dependent Claim
23 words
Vibration damping means as claimed in claim 2 in which i. the radial slot of the guide plug extends beyond the central bore.
Claim 11
Dependent Claim
30 words
Vibration damping means as claimed in claim 2 in which i. the sidewalls of the openings in the holder are cylindrical, and ii. the guide plugs have complementary cylindrical sidewalls.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |