Patent US2919073A successfully refreshed from Google Patents.
US4170673A
Expired / Lapsed
US
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Method for pulling cable
Assignee: AES ACQUISITION Co A CORP OF OH
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Filing: 1978-04-13
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Granted: 1979-10-09
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Expires: 1998-04-13
Abstract
Abstract A coating consisting essentially of 0.5% to 50%, preferably 2% to 20%, by volume, polyethylene oxide and about 6% to 30% a dispersion agent selected from the group consisting of propylene glycol, glycerol, ethylene glycol, polypropylene glycol, diethylene glycol, thiethylene glycol and hexylene glycol, with the ratio of polyethylene oxide-to-dispersion agent, by volume, being no greater than 2:1 and preferably 1:3. The remainder being essentially water. The coating is used as a lubricant to facilitate pulling plastic-sheathed cable through a conduit and to facilitate the passage of mixed concrete through a conduit.
Inventors
- 👤 Allen C. Conti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:01
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A method for pulling cable having a protective sheathing of polyethylene or polyurethane through a conduit, duct or the like, said method including the steps of: coating the outer surface of said protective sheathing with a non-degrading lubricant solution consisting essentially of about 0.5% to 50% by volume polyethylene oxide and about 6% to 30% by volume a dispersion agent selected from the group consisting of propylene glycol, glycerol, ethylene glycol, polypropylene glycol, diethylene glycol, triethylene glycol, and hexylene glycol, the ratio of the volume of polyethylene oxide to the volume of said dispersion agent being about 1:3, and the remainder being water; and drawing said cable along a conduit while the lubricant remains on the outer surface of said protective sheathing.
Claim 2
Independent Claim
122 words
A method for pulling cable having a protective sheathing of polyethylene or polyurethane through a conduit, duct or the like, said method including the steps of: coating the outer surface of said protective sheathing with a non-degrading lubricant solution consisting essentially of about 0.5% to 50% by volume polyethylene oxide and about 6% to 30% by volume a dispersion agent selected from the group consisting of propylene glycol, glycerol, ethylene glycol, polypropylene glycol, diethylene glycol, triethylene glycol, and hexylene glycol, the ratio of the volume of polyethylene oxide to the volume of said dispersion agent being about 1:3, and the remainder being water; and drawing said cable along a conduit while the lubricant remains on the outer surface of said protective sheathing.
Claim 3
Dependent Claim
20 words
The method according to claim 1 wherein said polyethylene oxide is within the range of 2% to 20% by volume.
Claim 4
Dependent Claim
23 words
The method according to claim 2 wherein said dispersion agent is propylene glycol and within the range of 23% to 7% by volume.
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) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |