US4064830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating and dewebbing tire cord fabric
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1976-06-03
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Granted: 1977-12-27
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Expires: 1996-06-03
Abstract
Abstract A dewebbing unit and dip tank used in the treatment of tire cord fabric with a liquid coating containing an agent for increasing the bond between the cords of the fabric and rubber material used in the production of tires. The dip tank has a pair of weirs which the liquid coating is caused to overflow for contact with the tire cord fabric which is directed across the weirs. The dewebbing unit includes a chamber in which fluid, under pressure, is alternately passed through the fabric from opposing sides of the fabric to simultaneously vibrate the fabric and pass air through the pores of the fabric.
Inventors
- 👤 Edward E. Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:58
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/40
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
130 words
An apparatus used in the treatment of plain woven tire cord fabric, comprising: a. means for contacting tire cord fabric with a liquid coating containing an agent for promoting the bond between cords of the fabric and rubber material used in the production of tires; and b. means downstream of the fabric contacting means (a) for dewebbing the fabric coated with the liquid coating, said means including: I. a chamber sealed from the ambient atmosphere; Ii. means for guiding the fabric in a vertical plane through the chamber between opposing sides thereof, thereby forming two compartments separated by said fabric; Iii. means for alternately circulating fluid, under pressure, to the compartments and for alternately evacuating fluid from the compartments in correlated relation to the circulation of fluid to the compartments.
Claim 2
Independent Claim
130 words
An apparatus used in the treatment of plain woven tire cord fabric, comprising: a. means for contacting tire cord fabric with a liquid coating containing an agent for promoting the bond between cords of the fabric and rubber material used in the production of tires; and b. means downstream of the fabric contacting means (a) for dewebbing the fabric coated with the liquid coating, said means including: I. a chamber sealed from the ambient atmosphere; Ii. means for guiding the fabric in a vertical plane through the chamber between opposing sides thereof, thereby forming two compartments separated by said fabric; Iii. means for alternately circulating fluid, under pressure, to the compartments and for alternately evacuating fluid from the compartments in correlated relation to the circulation of fluid to the compartments.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1, wherein the means for alternately circulating fluid, under pressure, to the compartments includes means for alternating circulation of the fluid at a rate of from 500 to 5000 times per minute.
Claim 4
Dependent Claim
16 words
The apparatus of claim 2, which includes means for draining liquid coating from the two compartments.
Claim 5
Dependent Claim
64 words
The apparatus of claim 3, wherein the fabric coating contacting means (a) includes: I. means for guiding the fabric along a horizontal pathway; Ii. a supply tank for holding the liquid coating, the tank including a pair of parallel weirs which liquid coating is caused to overflow; and Iii. means for catching liquid coating overflowing the weirs and recirculating it to the supply tank.
Claim 6
Dependent Claim
23 words
The apparatus of claim 4, wherein the means for catching liquid coating overflowing the weirs includes a catch basin surrounding the supply tank.
Claim 7
Dependent Claim
35 words
The apparatus of claim 5, including means for mounting the supply tank and catch basin for unitary movement, and means for raising and lowering the supply tank relative to fabric moving in the horizontal pathway.
Claim 8
Dependent Claim
78 words
The apparatus of claim 6, wherein the means for guiding the fabric along a horizontal pathway, includes: Iv. a pair of elongated rollers which are rotatable about parallel axes, one of the pair of rollers being downstream of the supply tank and the other of the pair of rollers being upstream of the supply tank; and V. means coacting with the roller downstream of the tank for deflecting liquid coating, flung from the roller, into the catch basin.
Claim 9
Dependent Claim
19 words
The apparatus of claim 7, which includes means for braking rotation of the roller downstream of the supply tank.
Claim 10
Dependent Claim
86 words
The apparatus of claim 7, which includes: Vi. a box coacting with the supply tank for causing the level of liquid coating to rise above the weirs, the box including a second pair of weirs which are opposite and parallel the weirs of the supply tank, and coact with the weirs of the supply tank to form a slot through which the overflowing fluid passes; and Vii. means for positioning the box between the rollers in fixed vertically spaced relation above fabric moving between the rollers.
Claim 11
Independent Claim
130 words
An apparatus used in the treatment of plain woven tire cord fabric, comprising: a. means for contacting tire cord fabric with a liquid coating containing an agent for promoting the bond between cords of the fabric and rubber material used in the production of tires, said means including: I. means for guiding the fabric along a horizontal pathway; Ii. a supply tank for holding liquid coating, the tank including a pair of parallel weirs which liquid coating is caused to overflow; Iii. a catch basin surrounding the supply tank for catching liquid coating overflowing the weirs and recirculating it to the supply tank; Iv. means for mounting the supply tank and catch basin for unitary movement; and b. means downstream of the fabric contacting means (a) for dewebbing the fabric.
Claim 12
Independent Claim
130 words
An apparatus used in the treatment of plain woven tire cord fabric, comprising: a. means for contacting tire cord fabric with a liquid coating containing an agent for promoting the bond between cords of the fabric and rubber material used in the production of tires, said means including: I. means for guiding the fabric along a horizontal pathway; Ii. a supply tank for holding liquid coating, the tank including a pair of parallel weirs which liquid coating is caused to overflow; Iii. a catch basin surrounding the supply tank for catching liquid coating overflowing the weirs and recirculating it to the supply tank; Iv. means for mounting the supply tank and catch basin for unitary movement; and b. means downstream of the fabric contacting means (a) for dewebbing the fabric.
Claim 13
Dependent Claim
74 words
The apparatus of claim 10, wherein the fabric guiding means (I) includes a pair of spaced, elongated rollers, one of the rollers being downstream from the supply tank and the other of the rollers being upstream from the supply tank, means for mounting the rollers for rotation about parallel axes, and means for directing liquid coating flung from the roller downstream from the supply tank, into the catch basin for recirculation to the tank.
Claim 14
Dependent Claim
74 words
The apparatus of claim 11, wherein the dewebbing means (b) includes: I. a chamber sealed from the ambient atmosphere; Ii. means for guiding the fabric in a vertical plane through the chamber between opposing sides thereof, thereby forming two compartments separated by said fabric; Iii. means for alternately circulating fluid, under pressure, to the compartments and for alternately evacuating fluid from the compartments in correlated relation to the circulation of fluid to the compartments.
Claim 15
Dependent Claim
38 words
The apparatus as claimed in claim 12, wherein the means for alternately circulating fluid, under pressure, to the compartments includes means for alternating circulation of the fluid at a rate of from 500 to 5000 times per minute.
Claim 16
Dependent Claim
16 words
The apparatus of claim 13, which includes means for removing liquid coating from the two compartments.
Claim 17
Dependent Claim
19 words
The apparatus of claim 14, which includes means for braking rotation of the roller downstream of the supply tank.
Claim 18
Dependent Claim
31 words
The apparatus of claim 14, wherein the fluid circulated to the compartments is air which is forced into the compartments at a velocity of from 15000 to 20000 feet per minute.
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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) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |