Patent US3800742A successfully refreshed from Google Patents.
US3800742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus used in the treatment of tire cord fabric
Assignee: Goodyear Tire and Rubber Co
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Filing: 1972-07-12
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Granted: 1974-04-02
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Expires: 1992-07-12
Abstract
Abstract A dip tank for holding liquid adhesive for increasing the bond between tire cord fabric and rubber material used in the production of pneumatic tires, and a series of rollers for directing tire cord fabric into contact with the liquid adhesive in the dip tank.
Inventors
- 👤 E Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:20
CPC Classifications
B; B05; B05C; B05C3/00; B05C3/02; B05C3/12; B05C3/125; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/40; B29D2030/383; B29K; B29K2021/00; B29L; B29L2030/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
An apparatus used for dipping a continuous length element in a liquid for coating the element, comprising in combination: a. a dip tank containing a coating liquid; b. a cylindrical drum disposed in the tank and floatable in the coating liquid; c. a pair of parallel rollers disposed adjacent the drum and spaced apart a distance less than the diameter of the drum for directing a continuous length element into cOntact with the drum and coating liquid carried from the dip tank by the drum as the drum rotates in the coating liquid; and d. means for positioning the rollers to restrain flotation of the drum in the coating liquid and maintain the drum parallel to the rollers as the drum and rollers rotate, the rollers and coating liquid being the only restraints against the drum in radial directions relative to the longitudinal axis of the drum.
Claim 2
Independent Claim
147 words
An apparatus used for dipping a continuous length element in a liquid for coating the element, comprising in combination: a. a dip tank containing a coating liquid; b. a cylindrical drum disposed in the tank and floatable in the coating liquid; c. a pair of parallel rollers disposed adjacent the drum and spaced apart a distance less than the diameter of the drum for directing a continuous length element into cOntact with the drum and coating liquid carried from the dip tank by the drum as the drum rotates in the coating liquid; and d. means for positioning the rollers to restrain flotation of the drum in the coating liquid and maintain the drum parallel to the rollers as the drum and rollers rotate, the rollers and coating liquid being the only restraints against the drum in radial directions relative to the longitudinal axis of the drum.
Claim 3
Dependent Claim
34 words
The apparatus of claim 1, which includes: e. means disposed between the rollers for engaging the continuous length element, reeved on the rollers, and holding the element clear of the drum between the rollers.
Claim 4
Dependent Claim
28 words
The apparatus of claim 2, which includes means for causing relative movement between the drum and rollers, whereby the drum is positioned for restrictive flotation by the rollers.
Claim 5
Dependent Claim
27 words
The apparatus of claim 2, which includes: f. means for restricting movement of the drum along its longitudinal axis as the drum rotates in the coating liquid.
Claim 6
Dependent Claim
29 words
The apparatus of claim 4, wherein the drum restricting means (f) includes a pair of stops carried by the tank and closely spaced from opposing ends of the drum.
Claim 7
Dependent Claim
40 words
The apparatus of claim 4, wherein the element engaging means (e) includes a third roller which is free of the drum and mounted for rotation about its longitudinal axis which is parallel to the longitudinal axes of the other rollers.
Claim 8
Dependent Claim
22 words
The apparatus of claim 6, which includes means for pulling a continuous length element around the rollers in contact with the drum.
Claim 9
Dependent Claim
29 words
The apparatus of claim 7, wherein the drum surface is composed of stainless steel and the drum is in the coating liquid below the rotational axis of the drum.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |