Patent US2337342A successfully refreshed from Google Patents.
Patent EP0450837A2 successfully refreshed from Google Patents.
US5115534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary paint removed device
Assignee: Individual
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Filing: 1991-02-19
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Granted: 1992-05-26
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Expires: 2011-02-19
Abstract
Abstract The present invention is directed toward a device that is adapted to the working end of a rotating string grass trimming tool. The standard string and spool end effector of the grass trimming tool is removed and the present invention is substituted in its place. The present invention is comprised of a drum which is rotated at a high rate of speed by the prime mover of the grass trimming tool. The drum has a plurality of flexible bristles extending from its circumferential surface. The centrifugal force of the rotating drum extends the flexible bristles away from the surface of the drum. The extended bristles are then brought into contact with a desired surface, removing any paint, rust or other unwanted material from the surface with a minimal or surface damage to that surface. The rate at which the present invention is rotated is controlled by the motor governing device of the grass trimming tool.
Inventors
- 👤 Raymond R. Fournier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:19
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/16; A; A46; A46B; A46B3/00; A46B3/08; A46B7/00; A46B7/06; A46B7/10; B08; B08B; B08B7/00; B08B7/02; B08B7/024
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
299 words
A paint stripping attachment apparatus for a rotating string grass trimming tool, wherein said grass trimming tool has a working head so attached by a threaded shaft, said attachment apparatus comprising: a) a substantially hollow drum having two ends, a first end being open, and a second end being solid, having a means of attachment between said drum and said threaded shaft formed thereon, said drum having a plurality of orifices formed therethrough between said first and second ends; b) a core having a plurality of core orifices formed therethrough, said core fitting within said first end of said drum, said core orifices aligning with said orifices on said drum, creating a plurality of open passages through said drum and said core; c) a plurality of flexible strands, one said strand traveling through each of said open passages within said drum and said core, each said strand extending outwardly from said drum at both ends of said open passage; and d) a core displacement means whereby said plurality of core orifices traversing said core are temporarily forced out of alignment with said plurality of orifices fromed through said drum, the displacement of said core orifices pinching said plurality of flexible strands between said drum and said core, temporarily locking said strands into place; wherein said core has a threaded neck formed thereon, said threaded neck extending below said drum when said core is within said drum, and wherein said core displacement means is a nut that tightens around said threaded neck, said nut contacting said first end of said drum and forcing said core toward said first end of said drum, the movement of said core within said drum pinching said flexible strands between said orifices on said drum and said core orifices, locking said flexible strands into place.
Claim 2
Dependent Claim
299 words
A paint stripping attachment apparatus for a rotating string grass trimming tool, wherein said grass trimming tool has a working head so attached by a threaded shaft, said attachment apparatus comprising: a) a substantially hollow drum having two ends, a first end being open, and a second end being solid, having a means of attachment between said drum and said threaded shaft formed thereon, said drum having a plurality of orifices formed therethrough between said first and second ends; b) a core having a plurality of core orifices formed therethrough, said core fitting within said first end of said drum, said core orifices aligning with said orifices on said drum, creating a plurality of open passages through said drum and said core; c) a plurality of flexible strands, one said strand traveling through each of said open passages within said drum and said core, each said strand extending outwardly from said drum at both ends of said open passage; and d) a core displacement means whereby said plurality of core orifices traversing said core are temporarily forced out of alignment with said plurality of orifices fromed through said drum, the displacement of said core orifices pinching said plurality of flexible strands between said drum and said core, temporarily locking said strands into place; wherein said core has a threaded neck formed thereon, said threaded neck extending below said drum when said core is within said drum, and wherein said core displacement means is a nut that tightens around said threaded neck, said nut contacting said first end of said drum and forcing said core toward said first end of said drum, the movement of said core within said drum pinching said flexible strands between said orifices on said drum and said core orifices, locking said flexible strands into place.
Claim 3
Dependent Claim
28 words
The apparatus of claim 1 wherein said means of attachment on said second end of said drum is a threaded relief formed to positively engage said threaded shaft.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 wherein said threaded relief is molded within the material of said second end.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein said drum has a height of at least four inches.
Claim 6
Dependent Claim
12 words
The apparatus of claim 1 wherein said core is molded from plastic.
Claim 7
Dependent Claim
19 words
The apparatus of claim 1 wherein each said flexible strand can be selectively added or removed from said apparatus.
Claim 8
Dependent Claim
16 words
The apparatus of claim 1 wherein said apparatus has at least six flexible strands extending therefrom.
Claim 9
Dependent Claim
15 words
The apparatus of claim 1 wherein said flexible strands are elastically deformable into any orientation.
Claim 10
Dependent Claim
15 words
The apparatus of claim 8 wherein said flexible strands are manufactured from a plastic material.
Claim 11
Dependent Claim
13 words
The apparatus of claim 8 wherein said flexible strands are manufactured from metal.
Claim 12
Dependent Claim
290 words
A paint stripping attachment apparatus for a rotating string grass trimming tool, wherein said grass trimming tool has a working head so attached by a threaded shaft, said attachment apparatus comprising: a) a substantially hollow drum having two ends, a first end being open, and a second end being solid, having a means of attachment between said drum and said threaded shaft formed thereon, said drum having a plurality of orifices formed therethrough between said first and second ends; b) a core having a plurality of core orifices formed therethrough, said core fitting within said first end of said drum, said core orifices aligning with said orifices on said drum, creating a plurality of open passages through said drum and said core; c) a plurality of flexible strands, one said strand traveling through each of said open passages within said drum and said core, said strands preventing said core from leaving said drum, each said strand extending outwardly from said drum at both ends of said open passage; and d) a core displacement means whereby said plurality of core orifices traversing said core are temporarily forced out of alignment with said plurality of orifices formed through said drum, the displacement of said core orifices pinching said plurality of flexible strands between said drum and said core, temporarily locking said strands into place; wherein said core has a plurality of grooves formed thereon, one said groove being in the same plane as each said open passage and having a depth less than the height of said flexible strands and wherein said core displacement means is a shaped relief formed on said core, said relief allowing said core to be rotated about its center axis, within said drum, by a hand tool.
Claim 13
Dependent Claim
290 words
A paint stripping attachment apparatus for a rotating string grass trimming tool, wherein said grass trimming tool has a working head so attached by a threaded shaft, said attachment apparatus comprising: a) a substantially hollow drum having two ends, a first end being open, and a second end being solid, having a means of attachment between said drum and said threaded shaft formed thereon, said drum having a plurality of orifices formed therethrough between said first and second ends; b) a core having a plurality of core orifices formed therethrough, said core fitting within said first end of said drum, said core orifices aligning with said orifices on said drum, creating a plurality of open passages through said drum and said core; c) a plurality of flexible strands, one said strand traveling through each of said open passages within said drum and said core, said strands preventing said core from leaving said drum, each said strand extending outwardly from said drum at both ends of said open passage; and d) a core displacement means whereby said plurality of core orifices traversing said core are temporarily forced out of alignment with said plurality of orifices formed through said drum, the displacement of said core orifices pinching said plurality of flexible strands between said drum and said core, temporarily locking said strands into place; wherein said core has a plurality of grooves formed thereon, one said groove being in the same plane as each said open passage and having a depth less than the height of said flexible strands and wherein said core displacement means is a shaped relief formed on said core, said relief allowing said core to be rotated about its center axis, within said drum, by a hand tool.
Claim 14
Dependent Claim
64 words
The apparatus of claim 11 wherein the rotation of said core by said displacement means within said drum causes said plurality of flexible strands to fall within said plurality of grooves on said core, said plurality of flexible strands becoming wedged between said core and said drum until the friction created by said flexible strands overcomes the rotational force created by said displacement means.
Claim 15
Dependent Claim
28 words
The apparatus of claim 11 wherein said means of attachment on said second end of said drum is a threaded relief formed to positively engage said threaded shaft.
Claim 16
Dependent Claim
18 words
The apparatus of claim 13 wherein said threaded relief is molded within the material of said second end.
Claim 17
Dependent Claim
16 words
The apparatus of claim 11 wherein said drum has a height of at least four inches.
Claim 18
Dependent Claim
12 words
The apparatus of claim 11 wherein said core is molded from plastic.
Claim 19
Dependent Claim
19 words
The apparatus of claim 11 wherein each said flexible strand can be selectively added or removed from said apparatus.
Claim 20
Dependent Claim
16 words
The apparatus of claim 11 wherein said apparatus has at least six flexible strands extending therefrom.
Claim 21
Dependent Claim
15 words
The apparatus of claim 11 wherein said flexible strands are elastically deformable into any orientation.
Claim 22
Dependent Claim
15 words
The apparatus of claim 19 wherein said flexible strands are manufactured from a plastic material.
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) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |