US3653295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing a lubricant to braided cord
Assignee: Acadia Elastomers Corp
•
Filing: 1970-04-30
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Granted: 1972-04-04
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Expires: 1990-04-30
Abstract
Abstract This disclosure relates to the method of impregnating a packing material with a lubricant. The impregnant is extruded by pulsations into a central portion of braided packing as it is being formed.
Inventors
- 👤 Frederick B Pintard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:12
CPC Classifications
D; D07; D07B; D07B7/00; D07B7/02; D07B7/12; D04; D04C; D04C3/00; D04C3/48; D04D; D04D1/00; D06; D06M; D06M7/00; D06M7/005; D10; D10B; D10B2505/00; D10B2505/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
In a process for making packing material wherein a plurality of fibrous strands are brought together and braided to form an elongate body of packing material and impregnated with a lubricant during the process, the improvement comprising: a. extruding under intermittent pulsating pressure a heavy lubricant through a nozzle terminating at the internal juncture of the fibrous strands being braided whereby the lubricant is effectively forcibly distributed in a direction axially of and among the strands at the center of the packing material.
Claim 2
Dependent Claim
83 words
In a process for making packing material wherein a plurality of fibrous strands are brought together and braided to form an elongate body of packing material and impregnated with a lubricant during the process, the improvement comprising: a. extruding under intermittent pulsating pressure a heavy lubricant through a nozzle terminating at the internal juncture of the fibrous strands being braided whereby the lubricant is effectively forcibly distributed in a direction axially of and among the strands at the center of the packing material.
Claim 3
Dependent Claim
19 words
The claimed subject matter of claim 1 wherein the intermittent pulsations are controllable both as to duration and interval.
Claim 4
Dependent Claim
92 words
In a process for making packing material wherein a plurality of fibrous strands are brought together and braided to form an elongate body of packing material and impregnated with a lubricant during the process, the improvement comprising: a. providing a nozzle terminating at the internal juncture where the fibrous strands are being braided, b. providing a supply of lubricant to the nozzle under pulsating pressure whereby a heavy lubricant is intermittently forcibly deposited directly internally among braided fibrous strands at the center of the packing material and in general axial alignment therewith.
Claim 5
Dependent Claim
92 words
In a process for making packing material wherein a plurality of fibrous strands are brought together and braided to form an elongate body of packing material and impregnated with a lubricant during the process, the improvement comprising: a. providing a nozzle terminating at the internal juncture where the fibrous strands are being braided, b. providing a supply of lubricant to the nozzle under pulsating pressure whereby a heavy lubricant is intermittently forcibly deposited directly internally among braided fibrous strands at the center of the packing material and in general axial alignment therewith.
Claim 6
Dependent Claim
22 words
The claimed subject matter of claim 3 wherein the intermittent delivery of lubricant is controllable by duration of pulsation and interval therebetween.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |