US3916469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating self-centering cleaning cylinder head
Assignee: Individual
•
Filing: 1974-05-17
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Granted: 1975-11-04
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Expires: 1994-05-17
Abstract
Abstract A floating self-centering head subassembly for rotational pipe and tube cleaning heads has a plurality of units, each unit including an arm mounted on a support portion of an associated head. A movement arm rotatably mounted on the retaining arm itself rotatably mounts a floating self-centering arm. Brushes provided on the arm are caused to seek the surface of a pipe or tube to be cleaned by a spring system associated with the selfcentering arm.
Inventors
- 👤 Clyde W Anthem
- 👤 Theodore A Anthem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:45
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/023
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
134 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the floating self-centering arm including, in combination: i. a longitudinal rotating arm having longitudinally spaced ends and rotatably mounted on the movement arm at a one of the ends; ii. at least one brush holder connected to the rotating arm between the spaced ends of the arm; and iii. a pull arm affixed to the other of the ends of the rotating arm and connected to the biasing means.
Claim 2
Dependent Claim
134 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the floating self-centering arm including, in combination: i. a longitudinal rotating arm having longitudinally spaced ends and rotatably mounted on the movement arm at a one of the ends; ii. at least one brush holder connected to the rotating arm between the spaced ends of the arm; and iii. a pull arm affixed to the other of the ends of the rotating arm and connected to the biasing means.
Claim 3
Dependent Claim
130 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the floating self-centering arm including, in combination: i. a longitudinal, curved, rotating arm having longitudinally spaced ends and rotatably mounted on the movement arm at a one of the ends; ii. at least one brush holder connected to the rotating arm; and iii. a pull arm affixed to the other of the ends of the rotating arm and arranged for connection to the biasing means.
Claim 4
Dependent Claim
130 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the floating self-centering arm including, in combination: i. a longitudinal, curved, rotating arm having longitudinally spaced ends and rotatably mounted on the movement arm at a one of the ends; ii. at least one brush holder connected to the rotating arm; and iii. a pull arm affixed to the other of the ends of the rotating arm and arranged for connection to the biasing means.
Claim 5
Dependent Claim
48 words
A structure as defined in claim 2, wherein the biasing means includes a pair of tension springs, a weaker one of the springs being connected to the rotating arm adjacent the one of the ends thereof, and a stronger one of the springs connected to the pull arm.
Claim 6
Dependent Claim
54 words
A structure as defined in claim 3, wherein the floating self-centering head subassembly includes a plurality of units each comprising a retaining arm, movement arm, floating self-centering arm, and biasing means, the units mounted on the support portion of the head and arranged for cooperatively surrounding a portion of an article to be cleaned.
Claim 7
Dependent Claim
58 words
A structure as defined in claim 4, wherein the stronger spring of a biasing means associated with a self-centering arm of one unit is also connected to the pull arm of the floating self-centering arm of another unit, and the weaker spring associated with the one unit is connected to the retaining arm associated with the one unit.
Claim 8
Dependent Claim
18 words
A structure as defined in claim 3, wherein the weaker spring is also connected To the retaining arm.
Claim 9
Dependent Claim
54 words
A structure as defined in claim 2, wherein the floating self-centering head subassembly includes a plurality of units each comprising a retaining arm, movement arm, floating self-centering arm, and biasing means, the units mounted on the support portion of the head and arranged for cooperatively surrounding a portion of an article to be cleaned.
Claim 10
Dependent Claim
118 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the biasing means including a pair of springs, a weaker one of the springs being connected to the self-centering arm adjacent a point thereof where the self-centering arm is rotatably connected to the movement arm, and a stronger one of the springs being connected to an outer, free end of the self-centering arm.
Claim 11
Dependent Claim
118 words
A floating self-centering head subassembly for rotational pipe and tube cleaning heads, comprising, in combination: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned, the biasing means including a pair of springs, a weaker one of the springs being connected to the self-centering arm adjacent a point thereof where the self-centering arm is rotatably connected to the movement arm, and a stronger one of the springs being connected to an outer, free end of the self-centering arm.
Claim 12
Dependent Claim
18 words
A structure as defined in claim 8, wherein the weaker spring is also connected to the retaining arm.
Claim 13
Dependent Claim
104 words
A structure as defined in claim 8, wherein the floating self-centering head subassembly includes a plurality of units each comprising a retaining arm, movement arm, floating self-centering arm, and biasing means, the units mounted on the support portion of the head and arranged for cooperatively surrounding a portion of an article to be cleaned, the stronger spring of a biasing means associated with a self-centering arm of one unit also being connected to the pull arm of the floating self-centering arm of another unit, and the weaker spring associated with the one unit being connected to the retaining arm associated with the one unit.
Claim 14
Dependent Claim
94 words
In an external pipe cleaning head comprising a gear wheel and a plurality of brush mounting subassemblies mounted on the gear wheel, wherein the improvement comprises the subassembly including, in combination, a plurality of units cooperatively mounted on the gear wheel, each unit comprising: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned.
Claim 15
Dependent Claim
94 words
In an external pipe cleaning head comprising a gear wheel and a plurality of brush mounting subassemblies mounted on the gear wheel, wherein the improvement comprises the subassembly including, in combination, a plurality of units cooperatively mounted on the gear wheel, each unit comprising: a. a retaining arm mountable on a support portion of a cleaning head; b. a movement arm rotatably mounted on the retaining arm; c. a floating self-centering arm rotatably mounted on the movement arm; and d. biasing means for pulling the floating self-centering arm against an article to be cleaned.
Claim 16
Dependent Claim
73 words
A structure as defined in claim 11, wherein the floating self-centering arm includes, in combination: i. a longitudinal, curved, rotating arm having longitudinally spaced ends and rotatably mounted on the movement arm at a one of the ends; ii. at least one brush holder connected to the rotating arm; and iii. a pull arm affixed to the other of the ends of the rotating arm and arranged for connection to the biasing means.
Claim 17
Dependent Claim
48 words
A structure as defined in claim 12, wherein the biasing means includes a pair of tension springs, a weaker one of the springs being connected to the rotating arm adjacent the one of the ends thereof, and a stronger one of the springs connected to the pull arm.
Claim 18
Dependent Claim
58 words
A structure as defined in claim 13, wherein the stronger spring of a biasing means associated with a self-centering arm of one unit is also connected to the pull arm of the floating self-centering arm of another unit, and the weaker spring associated with the one unit is connected to the retaining arm associated with the one unit.
Claim 19
Dependent Claim
61 words
A structure as defined in claim 11, wherein the biasing means includes a pair of springs, a weaker one of the springs being connected to the self-centering arm adjacent a point thereof where the self-centering arm is rotatably connected to the movement arm, and a stronger one of the springs being connected to an outer, free end of the self-centering arm.
Claim 20
Dependent Claim
18 words
A structure as defined in claim 15, wherein the weaker spring is also connected to the retaining arm.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |