US4122575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cleaning material
Assignee: NIHON PIPELINE SERVICE KABUSHIKI KIAHSA
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Filing: 1977-05-09
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Granted: 1978-10-31
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Expires: 1997-05-09
Abstract
Abstract A tube cleaning material for cleaning the inside of a tube is adapted to be passed through such a tube by means of a back pressure. The tube cleaning material includes a cylindrical body provided with at least one, and, preferably, a plurality of spiral grooves formed in its peripheral surface. The grooves extend and run in the same direction from the front to the rear of the cylindrical body. The edges of the groove are brought close to each other, when the material is pressed into the tube, so as to prevent wrinkles from appearing on the surface of the material. In addition, the grooves allow the back pressure creating medium to go ahead of the body to moisten the sticking contaminants on the tube. This facilitates the removal of contaminants especially when the medium is water. The body is rendered rotatable by the fluid medium. In one embodiment of the invention the grooves of one side communicate with the grooves on the other side of the body by a bore diametrically extending through the body. This facilitates the attaching of an auxiliary cleaning tool to the cylindrical body.
Inventors
- 👤 Teikichi Sagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:17
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0553
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A tube cleaning material comprising: (a) a cylindrical body, the body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned; (b) at least one spiral groove in the peripheral surface of said cylindrical body extending in the same direction from the front to the rear end of said cylindrical body, and (c) a polishing member provided on the surface of said cylindrical body, wherein said groove has a width and depth which are increasingly larger toward the front end of said cylindrical body.
Claim 2
Dependent Claim
97 words
A tube cleaning material comprising: (a) a cylindrical body, the body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned; (b) at least one spiral groove in the peripheral surface of said cylindrical body extending in the same direction from the front to the rear end of said cylindrical body, and (c) a polishing member provided on the surface of said cylindrical body, wherein said groove has a width and depth which are increasingly larger toward the front end of said cylindrical body.
Claim 3
Dependent Claim
144 words
A tube cleaning material comprising: a cylindrical body, the body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned, (b) grooving in the peripheral surface of said cylindrical body comprising a plurality of spiral grooves in the peripheral surface of said body extending in the same direction and from the front to the rear end of said body, (c) a bore passing through said cylindrical body for providing a communication between said grooving from one peripheral surface area to another peripheral surface area of said body, (d) at least one string passing through said grooving and said bore, (e) an auxiliary cleaning tool secured to said cylindrical body at one end thereof by means of said string, and (f) a polishing member provided on the surface of said cylindrical body.
Claim 4
Dependent Claim
144 words
A tube cleaning material comprising: a cylindrical body, the body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned, (b) grooving in the peripheral surface of said cylindrical body comprising a plurality of spiral grooves in the peripheral surface of said body extending in the same direction and from the front to the rear end of said body, (c) a bore passing through said cylindrical body for providing a communication between said grooving from one peripheral surface area to another peripheral surface area of said body, (d) at least one string passing through said grooving and said bore, (e) an auxiliary cleaning tool secured to said cylindrical body at one end thereof by means of said string, and (f) a polishing member provided on the surface of said cylindrical body.
Claim 5
Dependent Claim
146 words
A tube cleaning material comprising: (a) a cylindrical body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned, (b) a plurality of spiral grooves formed in the peripheral surface of said cylindrical body and extending in the same direction from the front to the rear end of said cylindrical body, (c) a bore passing through said cylindrical body for providing communication between one groove at one peripheral surface area of said cylindrical body and another groove at another peripheral surface area of the body, (d) a hollow string comprising a coiled wire, the string passing through said grooves and said bore, (e) an auxiliary cleaning tool attached to one end of said cylindrical body by means of said string, and (f) a polishing member mounted on the surface of said cylindrical body.
Claim 6
Dependent Claim
146 words
A tube cleaning material comprising: (a) a cylindrical body being formed from a compressible elastic material and having a diameter somewhat larger than the inner diameter of a tube to be cleaned, (b) a plurality of spiral grooves formed in the peripheral surface of said cylindrical body and extending in the same direction from the front to the rear end of said cylindrical body, (c) a bore passing through said cylindrical body for providing communication between one groove at one peripheral surface area of said cylindrical body and another groove at another peripheral surface area of the body, (d) a hollow string comprising a coiled wire, the string passing through said grooves and said bore, (e) an auxiliary cleaning tool attached to one end of said cylindrical body by means of said string, and (f) a polishing member mounted on the surface of said cylindrical body.
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) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |