US3889634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing liquid impregnated fibrous material
Assignee: J&P Coats Ltd
•
Filing: 1974-01-21
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Granted: 1975-06-17
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Expires: 1994-01-21
Abstract
Abstract A liquid-impregnated fibrous material is produced by feeding the material forward in the form of the closed loop. An impregnating liquid is applied to the loop over a chosen portion of the loop. The material approaching the loop and the material receding from the loop are maintained in contact with one another over a chosen distance.
Inventors
- 👤 Robert Mcnaught Gailey
- 👤 Joseph John Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:31
CPC Classifications
D; D06; D06B; D06B15/00; D06B15/08; D06B15/085
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
Apparatus for producing liquid-impregnated fibrous material comprising means for feeding continuously forward material from a source of supply of unimpregnated material guiding means for guiding the forwardly moving material in a path forming a loop, means for maintaining the material approaching the loop and the material receding from the loop in contact and liquid-applying means for applying impregnating liquid to the loop over a chosen extent of the loop.
Claim 2
Dependent Claim
69 words
Apparatus for producing liquid-impregnated fibrous material comprising means for feeding continuously forward material from a source of supply of unimpregnated material guiding means for guiding the forwardly moving material in a path forming a loop, means for maintaining the material approaching the loop and the material receding from the loop in contact and liquid-applying means for applying impregnating liquid to the loop over a chosen extent of the loop.
Claim 3
Dependent Claim
17 words
Apparatus as claimed in claim 1 in which the meaNs for feeding the material comprises feed rollers.
Claim 4
Dependent Claim
30 words
Apparatus as claimed in claim 1 in which the means for maintaining the material in a path forming a loop comprises a stationary guide around which the material is led.
Claim 5
Dependent Claim
49 words
Apparatus as claimed in claim 1 in which the means for maintaining the material approaching the loop and the material receding from the loop in crossing contact comprises a single ring through which the material approaching the loop and the material receding from the loop pass from opposite sides.
Claim 6
Dependent Claim
58 words
Apparatus as claimed in claim 1 in which the means for maintaining the material approaching the loop and the material receding from the loop in side by side contact over a chosen distance comprises two spaced rings through each of which the material approaching the loop and the material receding from the loop pass from the same side.
Claim 7
Dependent Claim
41 words
Apparatus as claimed in claim 1 in which the means for applying an impregnating liquid to the loop over a chosen extent of the loop comprises a receptacle capable of containing liquid and into which the loop is arranged to dip.
Claim 8
Dependent Claim
38 words
Apparatus as claimed in claim 1 in which the means for applying an impregnating liquid to the loop comprises a spray nozzle connectible to a supply of impregnating liquid and operable to spray impregnating liquid against the loop.
Claim 9
Dependent Claim
112 words
Apparatus as claimed in claim 1 in which the means for maintaining the material approaching the loop and the material receding from the loop in mutual contact includes two arms located to be on opposite sides of the material approaching the loop and the material receding from the loop and mounted to be swingable in opposite directions towards and from one another so that each is movable to a position in which it can engage simultaneously the material approaching the loop and the material receding from the loop, the points of engagement of the said arms with the material being on opposite sides of the material and being spaced from one another.
Claim 10
Dependent Claim
80 words
Apparatus as claimed in claim 1 in which the means for maintaining the material approaching the loop and the material receding from the loop in mutual contact includes two stationary rotatable guide pulleys and a swing arm carrying a pulley, the swing arm being swingable towards and from a position in which the pulley carried by the arm engages simultaneously the material approaching the loop and the material receding from the loop at a point between the two guide pulleys.
References Cited (Backward Citations)
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US2555673A
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US2558734A
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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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |