US3604041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline cleaning device
Assignee: TD Williamson Inc
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Filing: 1968-11-26
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Granted: 1971-09-14
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Expires: 1988-11-26
Abstract
Abstract A pipeline cleaning device comprising a body adapted to be moved forwardly through the pipeline, a plurality of springs mounted on the body, and a scraping element carried on each spring for engaging the inner wall of the pipeline in circumferentially spaced-apart relation. Each scraping element includes a base connected to the spring, a V-shaped blade upstanding from the base for tightly engaging the pipeline wall with its apex on the forward end thereof, and a relatively stiff rod extending from the base for tightly engaging at its outer end with the pipeline wall between the sides of the blade. Each of the base, blade, and rod is formed of urethane.
Inventors
- 👤 Burton Ver Nooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:25
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0553
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
118 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of rods mounted on the body and extending outwardly therefrom in circumferentially spaced-apart relation for tightly engaging at their outer ends with the inner wall of the pipeline when the body is disposed therein, each rod being relatively stiff and having a relatively large area on its outer end which is formed of urethane or like material having a high coefficient of friction with respect to the pipeline wall so that said outer end is caused to frictionally engage with and disengage from said wall with relatively high frequency as said body is so moved.
Claim 2
Independent Claim
118 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of rods mounted on the body and extending outwardly therefrom in circumferentially spaced-apart relation for tightly engaging at their outer ends with the inner wall of the pipeline when the body is disposed therein, each rod being relatively stiff and having a relatively large area on its outer end which is formed of urethane or like material having a high coefficient of friction with respect to the pipeline wall so that said outer end is caused to frictionally engage with and disengage from said wall with relatively high frequency as said body is so moved.
Claim 3
Independent Claim
135 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of rods mounted on the body and extending outwardly therefrom in circumferentially spaced-apart relation for tightly engaging at their outer ends with the inner wall of the pipeline when the body is disposed therein, each rod being formed of urethane or like material which is relatively stiff and has a high coefficient of friction with respect to the pipeline wall, and the cross-sectional area and shape of each rod being so related to its length and the area of its outer end being of such size as to cause said outer end to frictionally engage with and disengage from the pipeline wall with relatively high frequency as said body is so moved.
Claim 4
Independent Claim
135 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of rods mounted on the body and extending outwardly therefrom in circumferentially spaced-apart relation for tightly engaging at their outer ends with the inner wall of the pipeline when the body is disposed therein, each rod being formed of urethane or like material which is relatively stiff and has a high coefficient of friction with respect to the pipeline wall, and the cross-sectional area and shape of each rod being so related to its length and the area of its outer end being of such size as to cause said outer end to frictionally engage with and disengage from the pipeline wall with relatively high frequency as said body is so moved.
Claim 5
Independent Claim
96 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, a plurality of scraping blades mounted on the body for engaging the inner wall of the pipeline in circumferentially spaced-apart relation, each bladE extending at an acute angle with respect to the longitudinal axis of the body, and a plurality of relatively stiff, elastomeric rods each mounted on the body and extending outwardly therefrom to tightly engage at their outer ends with the pipeline wall and longitudinally intermediate the front and rear ends of a blade.
Claim 6
Independent Claim
96 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, a plurality of scraping blades mounted on the body for engaging the inner wall of the pipeline in circumferentially spaced-apart relation, each bladE extending at an acute angle with respect to the longitudinal axis of the body, and a plurality of relatively stiff, elastomeric rods each mounted on the body and extending outwardly therefrom to tightly engage at their outer ends with the pipeline wall and longitudinally intermediate the front and rear ends of a blade.
Claim 7
Dependent Claim
16 words
The device of claim 3, wherein each rod is laterally intermediate the sides of the blade.
Claim 8
Independent Claim
112 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of scraping elements mounted on the body in circumferentially spaced-apart relation, each scraping element including a base, a blade upstanding from the base for engaging the pipeline wall at an acute angle with respect to the axis of the body, and a relatively stiff rod extending outwardly from the base to tightly engage said wall and longitudinally intermediate the front and rear ends of the blade, the outer end of said rod being formed of an elastomeric material having a high coefficient of friction with respect to said wall.
Claim 9
Independent Claim
112 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, and a plurality of scraping elements mounted on the body in circumferentially spaced-apart relation, each scraping element including a base, a blade upstanding from the base for engaging the pipeline wall at an acute angle with respect to the axis of the body, and a relatively stiff rod extending outwardly from the base to tightly engage said wall and longitudinally intermediate the front and rear ends of the blade, the outer end of said rod being formed of an elastomeric material having a high coefficient of friction with respect to said wall.
Claim 10
Dependent Claim
16 words
The device of claim 5, wherein each rod is laterally intermediate the sides of the blade.
Claim 11
Dependent Claim
15 words
The device of claim 5, wherein the entire rod is formed of an elastomeric material.
Claim 12
Independent Claim
119 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, a plurality of springs mounted on the body, and a scraping element carried on each spring for engaging the inner wall of the pipeline in circumferentially spaced-apart relation, each scraping element including a blade for tightly engaging the pipeline wall at an acute angle with respect to the longitudinal axis of the body, and a relatively stiff rod for tightly engaging said wall and longitudinally intermediate the front and rear ends of said blade, the outer end of said rod being formed of a material having a high coefficient of friction with respect to said inner wall of pipeline.
Claim 13
Independent Claim
119 words
A device for cleaning a pipeline or other conduit, comprising a body adapted to be moved forwardly through the pipeline, a plurality of springs mounted on the body, and a scraping element carried on each spring for engaging the inner wall of the pipeline in circumferentially spaced-apart relation, each scraping element including a blade for tightly engaging the pipeline wall at an acute angle with respect to the longitudinal axis of the body, and a relatively stiff rod for tightly engaging said wall and longitudinally intermediate the front and rear ends of said blade, the outer end of said rod being formed of a material having a high coefficient of friction with respect to said inner wall of pipeline.
Claim 14
Dependent Claim
16 words
The device of claim 8, wherein each rod is laterally intermediate the sides of the blade.
Claim 15
Dependent Claim
87 words
A scraping element for a device for cleaning a pipeline or other conduit, comprising a base having a V-shaped blade upstanding from the base, and a rod extending from the base within the sides of the blade, each of the blade and rod being of substantially the same height relative to the base, and each of the base, blade, and rod being formed of urethane or like material which is relatively stiff and has a high coefficient of friction relative to the inner wall of the pipeline.
Claim 16
Dependent Claim
87 words
A scraping element for a device for cleaning a pipeline or other conduit, comprising a base having a V-shaped blade upstanding from the base, and a rod extending from the base within the sides of the blade, each of the blade and rod being of substantially the same height relative to the base, and each of the base, blade, and rod being formed of urethane or like material which is relatively stiff and has a high coefficient of friction relative to the inner wall of the pipeline.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |