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US3797122A
Expired / Lapsed
US
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Shingle cutting guide
Assignee: Individual
•
Filing: 1971-02-04
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Granted: 1974-03-19
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Expires: 1991-02-04
Abstract
Abstract The disclosure is directed to a roofer''s cutting guide for use in trimming tab asphalt shingles to a predetermined length. The guide consists of a plate of predetermine width and having a pair of parallel edges for guiding a shingle cutting tool. One of the edges is partially cut away to form a third parallel edge which also conforms in part to the shape of a slot lying between and defining the shingle tabs. The width of the plate is chosen so that upon alignment of the third edge with the shingle slot, the shingle can be trimmed lengthwise either at the slot or along a transverse line lying mid-way between two slots.
Inventors
- 👤 G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:10
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/02; E04D15/025; E04D15/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
A cutting guide for a shingle having a predetermined length and width and a plurality of equidistantly spaced transverse slots defining tabs, the cutting guide comprising: a. a guide plate having a predetermined width defined by first and second essentially parallel edges, the width being approximately one-half the normal distance between adjacent shingle slots; b. handle means connected to the guide plate; c. and means for enabling visual alignment of the guide plate with a shingle slot so that one of the first and second edges lies midway between adjacent slots and essentially parallel thereto, comprising a cutaway portion on the other of said first and second edges defining a third edge essentially parallel to the first and second edges, the third edge being offset from the other of said edges a distance equal to onehalf the width of a shingle slot.
Claim 2
Dependent Claim
142 words
A cutting guide for a shingle having a predetermined length and width and a plurality of equidistantly spaced transverse slots defining tabs, the cutting guide comprising: a. a guide plate having a predetermined width defined by first and second essentially parallel edges, the width being approximately one-half the normal distance between adjacent shingle slots; b. handle means connected to the guide plate; c. and means for enabling visual alignment of the guide plate with a shingle slot so that one of the first and second edges lies midway between adjacent slots and essentially parallel thereto, comprising a cutaway portion on the other of said first and second edges defining a third edge essentially parallel to the first and second edges, the third edge being offset from the other of said edges a distance equal to onehalf the width of a shingle slot.
Claim 3
Dependent Claim
26 words
The cutting guide as defined by claim 1, wherein the length of the guide plate is at least as great as the width of a shingle.
Claim 4
Dependent Claim
15 words
The cutting guide as defined by claim 1, wherein the guide plate is generally rectangular.
Claim 5
Dependent Claim
19 words
The cutting guide as defined by claim 1, wherein the cut-away portion conforms in shape to a shingle slot.
Claim 6
Dependent Claim
22 words
The cutting guide as defined by claim 1, wherein the handle means is removably connected to either side of the guide plate.
Claim 7
Dependent Claim
54 words
The cutting guide as defined by claim 5, wherein: a. at least one hole is formed in the guide plate, the hole being countersunk on both sides of the guide plate; b. and the hadle means is connected to the guide plate by a screw extending through the opening and into the handle means.
Claim 8
Dependent Claim
33 words
The cutting guide as defined by claim 1, and further comprising a plurality of notches formed in the third parallel edge to permit alignment of the guide plate with a wider shingle slot.
References Cited (Backward Citations)
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |