US4378299A
Expired / Lapsed
US
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Cable lubricating composition and method
Assignee: Amcol International Corp
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Filing: 1982-01-25
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Granted: 1983-03-29
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Expires: 2002-01-25
Abstract
Abstract A water soluble cable lubricating composition and method involves a lubricant in liquid or gel form that possesses the ability to adhere to the surface to be lubricated. The composition includes an aqueous solution of from about 1 to 4% of a water soluble cellulose derivative, such as carboxymethyl cellulose, and from about 1/2 to 2% of polyacrylamide. The lubricant may also include a hygroscopic agent such as ethylene glycol to prevent the lubricant from drying out too rapidly in use.
Inventors
- 👤 William Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:18
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M129/00; C10M129/02; C10M129/04; C10M129/06; C10M129/08; C10M145/00; C10M145/40; C10M149/00; C10M149/02; C10M149/06; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2209/00; C10M2209/12; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/06; C10N; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
38 words
A cable lubricant comprising from about 1 to about 4% by weight of a water soluble cellulose derivative, from about 1/2 to about 2% by weight of polyacrylamide and from about 75% to about 98.5% by weight water.
Claim 2
Dependent Claim
38 words
A cable lubricant comprising from about 1 to about 4% by weight of a water soluble cellulose derivative, from about 1/2 to about 2% by weight of polyacrylamide and from about 75% to about 98.5% by weight water.
Claim 3
Dependent Claim
23 words
The cable lubricant of claim 1 further including a hygroscopic agent forming from about 1 to about 15% by weight of the lubricant.
Claim 4
Dependent Claim
13 words
The cable lubricant of claim 2 wherein said hygroscopic agent is ethylene glycol.
Claim 5
Dependent Claim
19 words
The cable lubricant of claim 3 wherein said ethylene glycol is approximately 10% by weight of the composite lubricant.
Claim 6
Dependent Claim
15 words
The cable lubricant of claim 1 wherein said water soluble cellulose derivative is carboxymethyl cellulose.
Claim 7
Dependent Claim
25 words
The cable lubricant of claim 1 wherein said water soluble cellulose derivative makes up about 2% by weight of the entire composition of the lubricant.
Claim 8
Dependent Claim
21 words
The cable lubricant of claim 1 wherein the polyacrylamide has a molecular weight of about 5 million to about 8 million.
Claim 9
Dependent Claim
14 words
The cable lubricant of claim 1 wherein said polyacrylamide is a cationic flocculating agent.
Claim 10
Dependent Claim
23 words
The cable lubricant of claim 8 wherein said polyacrylamide is based on the copolymerization of acrylamide and a cationic derivative of acrylic acid.
Claim 11
Dependent Claim
18 words
The cable lubricant of claim 9 wherein said polyacrylamide is approximately 1% by weight of the cable lubricant.
Claim 12
Dependent Claim
13 words
The cable lubricant of claim 1 having a pH of less than 7.
Claim 13
Dependent Claim
41 words
A cable lubricant comprising from about 1 to about 4% by weight carboxymethyl cellulose, from about 1/2 to about 2% by weight polyacrylamide, from about 5 to 15% by weight of a hygroscopic agent and about 75 to about 98.5% water.
Claim 14
Dependent Claim
41 words
A cable lubricant comprising from about 1 to about 4% by weight carboxymethyl cellulose, from about 1/2 to about 2% by weight polyacrylamide, from about 5 to 15% by weight of a hygroscopic agent and about 75 to about 98.5% water.
Claim 15
Dependent Claim
28 words
The cable lubricant of claim 12 wherein carboxymethyl cellulose is about 2% by weight of the lubricant and polyacrylamide is about 1% by weight of the composite lubricant.
Claim 16
Dependent Claim
22 words
The cable lubricant of claim 12 wherein said hygroscopic agent is ethylene glycol forming approximately 10% by weight of the composite lubricant.
Claim 17
Dependent Claim
37 words
The cable lubricant of claim 12 wherein said polyacrylamide is a flocculating agent based on the copolymerization of acrylamide and a cationic derivative of a acrylic acid having a molecular weight of about 5 million or more.
Claim 18
Dependent Claim
42 words
A cable lubricating method for lubricating cable preparatory to pulling the cable through a housing, comprising: preparing an aqueous, colloidal composition of polyacrylamide, carboxymethyl cellulose, and a hygroscopic agent; applying the composition in a colloidal film to the surface of the cable.
Claim 19
Dependent Claim
42 words
A cable lubricating method for lubricating cable preparatory to pulling the cable through a housing, comprising: preparing an aqueous, colloidal composition of polyacrylamide, carboxymethyl cellulose, and a hygroscopic agent; applying the composition in a colloidal film to the surface of the cable.
Claim 20
Dependent Claim
60 words
The method of claim 16 wherein the step of preparing an aqueous solution includes the steps of adding sufficient carboxymethyl cellulose to form approximately 1% to 4% by weight of the composition, sufficient polyacrylamide to form approximately 1/2% to 2% by weight of the composition, and sufficient hygroscopic agent to form about 5% to 15% by weight of the solution.
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) | 1986-03-28 | 1986-09-27 | 1987-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-28 | 1990-09-27 | 1991-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-28 | 1994-09-27 | 1995-03-29 | $7700.00 | Window Closed / Lapsed |