IP Library › Granted Patent US 10,638,663
Granted Patent B2
US 10,638,663 · App. 15/832,117 · Granted May 5, 2020

Weed trimmer extension system

Inventor: Charles Raphael Grande (Penn Valley, CA)
Assignee: FOURNIER AND GRANDE TRUST
A01D34/71A01D34/4167A01D34/90A01D43/0636
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Quick Facts
Patent No.
US 10,638,663
App. No.
15/832,117
Granted
May 5, 2020
Kind
B2
Abstract

A weed trimmer extension system for cutting and collecting, or dispersing weeds includes a cutting enclosure, to which can be attached a collecting bag or a cutting disperser; a replacement cutting implement; and enclosure fasteners, for attaching the weed trimmer extension system to a weed trimmer. The cutting implement can further include a cutting blade; a cutting string with a greater cutting radius so the cutting string can operate close to an obstruction, without the cutting blade causing damage to the obstruction; and a perpendicular fin, which pushes air in a circular direction of motion, thereby creating a vortex of air, which rotates in the plane spanned out by the rotating cutting blade. The cutting enclosure covers the replacement cutting implement, which propels the cuttings, contained and directed by the cutting enclosure, into either the collecting bag or the cutting disperser, which disperses the weed cuttings.

Claims (51)

1. A weed trimmer extension system for installation on a weed trimmer with a naked trimmer head, the weed trimmer extension system comprising:

a) a cutting enclosure including an ejection aperture in a side of the cutting enclosure;

b) enclosure fasteners;

c) a replacement cutting implement, comprising:

a cutting blade; and

at least one cutting string, which is connected to the cutting blade;

wherein the at least one cutting string is configured to have a greater cutting radius than the cutting blade, whereby the at least one cutting string can cut weeds and grass close to an obstruction, without the at least one cutting blade touching and potentially causing damage to the obstruction; and

d) a cutting implement fastener;

wherein the cutting enclosure is configured to be attached to the naked trimmer head of the weed trimmer with the enclosure fasteners, and the cutting blade is configured to be attached to a rotatable axle of the naked trimmer head and tightened in place with the cutting implement fastener, such that the cutting enclosure is configured to cover the cutting blade above and to sides of the cutting implement, such that the cutting enclosure in combination with a rotation of the cutting blade is configured to create a substantially planar air vortex that propels cuttings, which are contained and directed by the cutting enclosure, and wherein the cuttings are ejected through the ejection aperture;

wherein the replacement cutting implement, further comprises at least one perpendicular fin, which is perpendicularly connected to the cutting blade, along a length of the cutting blade, between the cutting blade and the cutting enclosure, such that the at least one perpendicular fin strengthens the substantially planar air vortex; and

wherein the cutting enclosure further comprises a rim that is mounted on an inside of a top of the cutting enclosure, such that the at least one perpendicular fin is configured to rotate inside a perimeter of the rim, between the cutting blade and the top of the cutting enclosure.

2. The weed trimmer extension system of claim 1 , wherein the at least one cutting string is connected to an outer end of the cutting blade.

3. The weed trimmer extension system of claim 1 , wherein the cutting enclosure further comprises:

a sidewall comprising a straight segment, wherein the sidewall encloses the cutting blade to the sides of the cutting implement, wherein the sidewall is configured with a sidewall aperture in the straight segment of the sidewall; and

wherein the at least one cutting string is configured to protrude through the sidewall aperture during rotation.

4. The weed trimmer extension system of claim 1 , wherein the at least one perpendicular fin further comprises at least one aperture.

5. The weed trimmer extension system of claim 1 , wherein the cutting enclosure further comprises an ejection canal, such that the air vortex propels cuttings via the ejection canal from the cutting enclosure to the ejection aperture in the side of the cutting enclosure.

6. The weed trimmer extension system of claim 1 , further comprising:

a protruding spacer;

wherein the protruding spacer is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener, such that the protruding spacer protrudes underneath the cutting implement, whereby the protruding spacer reduces a risk of close contact with the ground, whereby the strength of the air vortex is reduced, and a risk of the cutting implement impacting ground during use is reduced.

7. The weed trimmer extension system of claim 6 , wherein an external protrusion of the protruding spacer is in a range of 0.5-2 inches.

8. The weed trimmer extension system of claim 6 , wherein the protruding spacer further comprises:

a) a spacer aperture, from a central part of an inner end to a central part of an outer end of the protruding spacer; and

b) an inner ledge, which further comprises a central aperture;

wherein the inner ledge is attached to the protruding spacer inside the spacer aperture, whereby the axle fits through the spacer aperture and the central aperture, and the cutting implement fastener is fastened against an outer side of the inner ledge, when the cutting implement fastener is fastened to the rotatable axle.

9. A weed trimmer extension system for installation on a weed trimmer with a naked trimmer head, the weed trimmer extension system comprising:

a) a cutting enclosure including an ejection aperture in a side of the cutting enclosure;

b) enclosure fasteners;

c) a replacement cutting implement, comprising:

a cutting blade; and

at least one cutting string, which is connected to the cutting blade;

wherein the at least one cutting string is configured to have a greater cutting radius than the cutting blade, whereby the at least one cutting string can cut weeds and grass close to an obstruction, without the at least one cutting blade touching and potentially causing damage to the obstruction; and

d) a cutting implement fastener; and

e) a protruding spacer;

wherein the cutting enclosure is configured to be attached to the naked trimmer head of the weed trimmer with the enclosure fasteners, and the cutting blade is configured to be attached to a rotatable axle of the naked trimmer head and tightened in place with the cutting implement fastener, such that the cutting enclosure is configured to cover the cutting blade above and to sides of the cutting implement, such that the cutting enclosure in combination with a rotation of the cutting blade is configured to create a substantially planar air vortex that propels cuttings, which are contained and directed by the cutting enclosure, and wherein the cuttings are ejected through the ejection aperture; and

wherein the protruding spacer is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener, such that the protruding spacer protrudes underneath the cutting implement, whereby the protruding spacer reduces a risk of close contact with the ground, whereby the strength of the air vortex is reduced, and a risk of the cutting implement impacting ground during use is reduced.

10. The weed trimmer extension system of claim 9 , wherein the at least one cutting string is connected to an outer end of the cutting blade.

11. The weed trimmer extension system of claim 9 , wherein the cutting enclosure further comprises:

a sidewall comprising a straight segment, wherein the sidewall encloses the cutting blade to the sides of the cutting implement, wherein the sidewall is configured with a sidewall aperture in the straight segment of the sidewall; and

wherein the at least one cutting string is configured to extend through the sidewall aperture during rotation.

12. The weed trimmer extension system of claim 9 , wherein the replacement cutting implement, further comprises at least one perpendicular fin, which is perpendicularly connected to the cutting blade, along a length of the cutting blade, between the cutting blade and the cutting enclosure, such that the at least one perpendicular fin strengthens the substantially planar air vortex.

13. The weed trimmer extension system of claim 12 , wherein the at least one perpendicular fin further comprises at least one aperture.

14. The weed trimmer extension system of claim 12 , wherein the cutting enclosure further comprises:

a rim that is mounted on an inside of a top of the cutting enclosure;

such that the at least one perpendicular fin is configured to rotate inside a perimeter of the rim, between the cutting blade and the top of the cutting enclosure.

15. The weed trimmer extension system of claim 9 , wherein the cutting enclosure further comprises an ejection canal, such that the air vortex propels cuttings via the ejection canal from the cutting enclosure to the ejection aperture in the side of the cutting enclosure.

16. The weed trimmer extension system of claim 9 , wherein an external protrusion of the protruding spacer is in a range of 0.5-2 inches.

17. The weed trimmer extension system of claim 9 , wherein the protruding spacer further comprises:

c) a spacer aperture, from a central part of an inner end to a central part of an outer end of the protruding spacer; and

d) an inner ledge, which further comprises a central aperture;

wherein the inner ledge is attached to the protruding spacer inside the spacer aperture, whereby the axle fits through the spacer aperture and the central aperture, and the cutting implement fastener is fastened against an outer side of the inner ledge, when the cutting implement fastener is fastened to the rotatable axle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2020
From: GRANDE, CHARLES RAPHAEL
To: FOURNIER AND GRANDE TRUST DATED AUGUST 2, 2005
Reel/Frame 052267/0425 →
Continuity (6)
Continuation 14705162 · May 6, 2015
Continuation In Part 14160466 · Jan 21, 2014
Continuation In Part 14058278 · Oct 20, 2013
Provisional Application 62020298 · Jul 2, 2014
Provisional Application 61795665 · Oct 22, 2012
Related Publication 20180092300A1 · Apr 5, 2018
Cited By (1)
US 12,376,513