US4319642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed and grass removing tool
Assignee: Individual
•
Filing: 1980-06-06
•
Granted: 1982-03-16
•
Expires: 2000-06-06
Abstract
Abstract A hand tool for grooming outdoor terraces, comprising a weed hook and associated handle together with gauge structure limiting the depth to which the hook may penetrate. It is used primarily for removing grass, weeds or other debris from cracks or grooves in terraces or paved walks.
Inventors
- 👤 William J. Merz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:03
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
183 words
A tool for removing weeds and debris from grooves between paving stones, comprising a handle and a claw rigidly mounted thereto, said claw comprising three tines, in spaced apart side-by-side relationship, each of said tines having a shank and all of said shanks touching a common plane, all of said shanks further being bent downwardly from said plane in a direction substantially normal to said plane, the central one of said tines extending from said plane to a level at the tip thereof ensuring penetration of its tip to the intended maximum depth of cultivation, said tines right and left of said central tine being reversely bent away from said handle and also away from said downward direction at a locus intermediate the plane of the shanks and the level of the tip on said central tine, said tines right and left of said central tine being free of structure in said downward direction lower than the reversely bent portions thereof whereby the reversely bent portions of the right and left tines serve to limit penetration of the central tine into the grooves.
Claim 2
Dependent Claim
183 words
A tool for removing weeds and debris from grooves between paving stones, comprising a handle and a claw rigidly mounted thereto, said claw comprising three tines, in spaced apart side-by-side relationship, each of said tines having a shank and all of said shanks touching a common plane, all of said shanks further being bent downwardly from said plane in a direction substantially normal to said plane, the central one of said tines extending from said plane to a level at the tip thereof ensuring penetration of its tip to the intended maximum depth of cultivation, said tines right and left of said central tine being reversely bent away from said handle and also away from said downward direction at a locus intermediate the plane of the shanks and the level of the tip on said central tine, said tines right and left of said central tine being free of structure in said downward direction lower than the reversely bent portions thereof whereby the reversely bent portions of the right and left tines serve to limit penetration of the central tine into the grooves.
Claim 3
Dependent Claim
44 words
A weeding tool as defined in claim 1, wherein the right and left tines have flatted surfaces at their working ends which are canted upwardly and outwardly with respect to the vertical plane in which the downwardly bent portion of the central tine lies.
Claim 4
Dependent Claim
24 words
A weeding tool as defined in claim 1, wherein the reversely bent portions of the right and left tines are curved to a radius.
Claim 5
Dependent Claim
29 words
A weeding tool as defined in claim 1, wherein the right and left tines have flatted areas which serve as shoes in guiding and supporting the tool in use.
Claim 6
Dependent Claim
28 words
A weeding tool as defined in claim 1, wherein the working ends of the right and left tines are round in cross-section, and lengthwise have a curvilinear form.
Claim 7
Dependent Claim
32 words
A weeding tool as defined in claim 1, wherein a finger grip is provided, adjacent the handle which is integrally united to the shank of the central tine and projects radially therefrom.
Claim 8
Dependent Claim
63 words
A weeding tool as defined in claim 1, in which, when the tip of the central tine lies at an angle of about 52° to the horizontal, the arc of curvature of the reversely bent portions of the right and left tines is such as to afford a bearing point for each of the tines which is at about 30° to the horizontal.
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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) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |