Patent US4630371A successfully refreshed from Google Patents.
US4630371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line trimmer shield
Assignee: Individual
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Filing: 1986-02-06
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Granted: 1986-12-23
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Expires: 2006-02-06
Abstract
Abstract A radially short upstanding sleeve member is provided and includes an upper end releasably mounted from a rounded base portion of a sector-shaped debris shield of a line trimmer. The lower end of the sleeve member is loosely telescoped downwardly over the upper end of the line reel head of the line trimmer and an intermediate length portion of the sleeve member includes an inwardly projecting corrugation functioning to stiffen the sleeve member against radial deformity. In addition, the corrugation serves to allow lateral deflection of the lower end of the sleeve member relative to the upper end thereof and the corrugation projects closely inwardly over the upper end of the associated line reel head. Further, the upper end of the sleeve member is mounted from a depending flange portion of the base portion of a sector-shaped debris shield of the line trimmer through the utilization of a resilient spacing member.
Inventors
- 👤 Andrew J. Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:05
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/06; A01G3/062; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/416
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
165 words
In combination with a line trimmer head assembly including a sector-shaped debris shield radiating outward therefrom and wherein the apex end portion of the shield terminates in a rounded base portion having a central aperture formed therethrough and secured to the underside of the head with a line reel mounting shaft end portion extending downwardly from the head, projecting through the aperture and having a "bumping" type line release line reel head mounted thereon beneath said rounded base portion, a tall grass and/or weed entanglement shield comprising an upright axially short sleeve member including an upper end extending about and mounted from the outer periphery of said base portion, said upper end including upwardly opening peripherally spaced notch means formed therein registered with, providing clearance for and receiving adjacent portions of the apex portion of said debris shield therein, said sleeve member including a lower end Projecting downward from said debris shield and loosely telescopingly engaged over the upper portion of said line reel head.
Claim 2
Dependent Claim
165 words
In combination with a line trimmer head assembly including a sector-shaped debris shield radiating outward therefrom and wherein the apex end portion of the shield terminates in a rounded base portion having a central aperture formed therethrough and secured to the underside of the head with a line reel mounting shaft end portion extending downwardly from the head, projecting through the aperture and having a "bumping" type line release line reel head mounted thereon beneath said rounded base portion, a tall grass and/or weed entanglement shield comprising an upright axially short sleeve member including an upper end extending about and mounted from the outer periphery of said base portion, said upper end including upwardly opening peripherally spaced notch means formed therein registered with, providing clearance for and receiving adjacent portions of the apex portion of said debris shield therein, said sleeve member including a lower end Projecting downward from said debris shield and loosely telescopingly engaged over the upper portion of said line reel head.
Claim 3
Dependent Claim
53 words
The assembly of claim 1 wherein said rounded base portion includes a depending peripheral flange extending thereabout from one side of the apex portion of said debris shield to the other, said upper end of said sleeve, exclusive of the notched portions thereof, being telescoped upwardly over said peripheral flange and secured thereto.
Claim 4
Dependent Claim
33 words
The assembly of claim 2 including a resilient strip-type spacing member disposed between the inner and outer surfaces of the telescopingly engaged portions of said sleeve member upper end and said peripheral flange.
Claim 5
Dependent Claim
53 words
The assembly of claim 2 wherein said debris shield includes depending stiffening flange means extending along paths extending between the major and minor dimension ends of said debris shield and joined to said base portion, said notch means including individually upwardly opening notches formed in said upper end receiving said stiffening flanges therethrough.
Claim 6
Dependent Claim
37 words
The assembly of claim 2 wherein said flange includes a radial locking pin receiving notch formed in the lower end thereof, said upper end including a radial opening formed therethrough aligned with said locking pin receiving notch.
Claim 7
Dependent Claim
33 words
The assembly of claim 5 including a resilient strip-type spacing member disposed between the inner and outer surfaces of the telescopingly engaged portions of said sleeve member upper end and said peripheral flange.
Claim 8
Dependent Claim
53 words
The assembly of claim 6 wherein said debris shield includes depending stiffening flange means extending along paths extending between the major and minor dimension ends of said debris shield and joined to said base portion, said notch means including individually upwardly opening notches formed in said upper end receiving said stiffening flanges therethrough.
Claim 9
Dependent Claim
24 words
The assembly of claim 1 wherein said sleeve member includes a mid-length circumferentially extending inwardly projecting corrugation formed therein spaced below said base portion.
References Cited (Backward Citations)
US4047299A
Cited
US4068376A
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US4052789A
Cited
US4209902A
Cited
US4287670A
Cited
US4249310A
Cited
US4200978A
Cited
US4426780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |