US5010791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shingle pry bar
Assignee: Individual
•
Filing: 1990-07-23
•
Granted: 1991-04-30
•
Expires: 2010-07-23
Abstract
Abstract A prying blade (42) having an essentially triangular forward portion (43) is secured to a pipe handle (41) at an angle (D) of between about 20°-25°. The triangular forward portion is formed with a rounded or blunt apex region (47) and the two lateral sides (45a, 45b) have notches (44) therein, leaving teeth therebetween. The notches can engage nails for prying up roofing nails together with roofing shingles. The rear portion of the blade (49) is secured to the handle at a point rearwardly of the apex region, for example by welding, to form with the handle a triangular structure. The prying regions of the blades are thus securely supported. The triangular arrangement permits placement of the apex region of the prying bar between nails and removal by the notches in the sides (45a, 45b), or direct prying by the prying bar of a nail caught at the apex region.
Inventors
- 👤 James D. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:40
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/003
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
147 words
Roofing shingle removal tool comprising a handle (41); a prying blade (42) having an essentially triangular, substantially flat forward portion (43) defining an apex region (47) and two lateral sides (45a, 45b); nail receiving notches (44) formed in said lateral sides and defining teeth (46) therebetween, and a rear support portion (49) extending from the forward portion; first attachment means (48) for attaching said forward portion to said handle immediately adjacent the apex region, and for retaining the forward portion with respect to said handle at a first angle (D); and second attachment means (50) for attaching said rear support portion to said handle at a position remote from said first attachment means, said blade defining a bend or heel (51) between said forward portion and said support portion, which bend or heel or ridge line (51) is spaced from said handle by a predetermined distance (h).
Claim 2
Dependent Claim
147 words
Roofing shingle removal tool comprising a handle (41); a prying blade (42) having an essentially triangular, substantially flat forward portion (43) defining an apex region (47) and two lateral sides (45a, 45b); nail receiving notches (44) formed in said lateral sides and defining teeth (46) therebetween, and a rear support portion (49) extending from the forward portion; first attachment means (48) for attaching said forward portion to said handle immediately adjacent the apex region, and for retaining the forward portion with respect to said handle at a first angle (D); and second attachment means (50) for attaching said rear support portion to said handle at a position remote from said first attachment means, said blade defining a bend or heel (51) between said forward portion and said support portion, which bend or heel or ridge line (51) is spaced from said handle by a predetermined distance (h).
Claim 3
Dependent Claim
32 words
The tool of claim 1, wherein said apex region (47) forms a blunt or rounded region of the blade; and nail receiving notches (44) are formed in said blunt or rounded region.
Claim 4
Dependent Claim
36 words
The tool of claim 1, wherein said apex region (47) forms a blunt or rounded region of the blade; and said first attachment means (48) attach said handle (41) immediately adjacent said blunt or rounded region.
Claim 5
Dependent Claim
30 words
The tool of claim 2, wherein said blunt or rounded region extends between said lateral sides (45a, 45b) for a distance corresponding substantially to the width of the handle (41).
Claim 6
Dependent Claim
30 words
The tool of claim 3, wherein said blunt or rounded region extends between said lateral sides (45a, 45b) for a distance corresponding substantially to the width of the handle (41).
Claim 7
Dependent Claim
13 words
The tool of claim 1, wherein said handle (41) comprises a pipe element.
Claim 8
Dependent Claim
53 words
The tool of claim 6, wherein the handle (41) has an end portion (41a) remote from said first attachment means, said end portion including a threaded element (52) recessed inwardly in said pipe element to permit deformation of the end portion (41a) of the pipe element without damage to the threaded element (52).
Claim 9
Dependent Claim
19 words
The tool of claim 1, wherein said essentially triangular forward portion (43) includes an angle of between about 70°-90°.
Claim 10
Dependent Claim
15 words
The tool of claim 1, wherein said predetermined distance (h) is about 21/2" (61/2 cm).
Claim 11
Dependent Claim
14 words
The tool of claim 1, wherein said first angle (D) is between about 20°-25°.
Claim 12
Dependent Claim
14 words
The tool of claim 10, wherein said first angle (D) is between about 22°-23°.
Claim 13
Dependent Claim
26 words
The tool of claim 1, wherein said teeth (46) are formed with a double bevel, each bevel having a bevel angle (C) of between about 10°-20°.
Claim 14
Dependent Claim
31 words
The tool of claim 1, wherein said blade (42) has a width (w) between said sides (45a, 45b) remote from said apex in the order of between about 5-8" (12.5-20 cm).
Claim 15
Dependent Claim
14 words
The tool of claim 13, wherein said width (w) is about 61/2" (16.5 cm).
Claim 16
Dependent Claim
16 words
The tool of claim 1, wherein said teeth have a width of about 1/4" (6 mm).
Claim 17
Dependent Claim
18 words
The tool of claim 1, wherein said notches (44) have a depth (D) of about 1/4" (6 mm).
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) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |