US3887748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for applying a covering to a wall or like substrate
Assignee: Individual
•
Filing: 1971-08-26
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Granted: 1975-06-03
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Expires: 1991-08-26
Abstract
Abstract Method and composition for applying a surface covering to a wall or like substrate. The surface covering comprises a flexible strip or sheet of substantially dry, semi-hydrated gypsum, bonded to a re-enforcing mesh or lath. The method includes the steps of coating the rear face of the surface covering sheet with aqueous latex adhesive in an amount which will transfer sufficient water from the adhesive to the gypsum to hydrate and set the gypsum, and, at the same time, invert the latex to a tacky, adherent state; and applying the adhesive-coated surface covering to the substrate.
Inventors
- 👤 Clyde J Swedenberg
- 👤 Charles C Fain
- 👤 William W Rutledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:57
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/002; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10S428/907; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/24347; Y10T428/28; Y10T428/2848; Y10T428/31504; Y10T428/31855; Y10T428/31935; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/171
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
161 words
A DECORATIVE WALL COVERING FOR INSTALLATION UPON A RIGID WALL FOR IMPARTING A FINISHED SURFACE TO THE WALL CONSISTING ESSENTIALLY OF: A. A FLEXIBLE LATH OF MESH MATERIAL, B. A SUBSTANTIALLY DRY SEMI-HYDRATED FLEXIBLE GYPSUM LAYER BONDED ON SAID MATERIAL SUBSTANTIALLY COVERING ONE SIDE OF SAID LATH, C. A SUBSTANTIALLY UNIFORM AQUEOUS LATEX ADHESIVE COATING ACROSS AN EXPOSED SIDE OF SAID GYPSUM LAYER FOR SECURING SAID WALL COVERING TO SAID RIGID WALL AND HYDRATING SAID GYPSUM, D. SAID RATIO OF AQUEOUS LATEX ADHESIVE TO GYPSUM IS SUCH THAT SAID AQUEOUS LATEX ADHESIVE SUPPLIES ABOUT THREE PARTS BY WEIGHT OF WATER FOR ABOUT TEN PARTS OF WEIGHT OF GYPSUM, AND E. SAID SEMI-HYDRATED FLEXIBLE GYPSUM BEING OF SUFFICIENT THICKNESS THAT SAID AQUEOUS LATEX ADHESIVE AFFORDS A SUFFICIENTLY CONTROLLED AMOUNT OF WATER TO HYDRAATE SAID GYPSUM AND FOR INVERTING SAID LATEX ADHESIVE, WHEREBY THE WALL COVERING MAY BE SHIPPED AND STORED IN ROLLS PREPARATORY TO INSTALLATION UTILIZING SAID APPLICATION OF AQUEOUS LATEX ADHESIVE.
Claim 2
Dependent Claim
161 words
A DECORATIVE WALL COVERING FOR INSTALLATION UPON A RIGID WALL FOR IMPARTING A FINISHED SURFACE TO THE WALL CONSISTING ESSENTIALLY OF: A. A FLEXIBLE LATH OF MESH MATERIAL, B. A SUBSTANTIALLY DRY SEMI-HYDRATED FLEXIBLE GYPSUM LAYER BONDED ON SAID MATERIAL SUBSTANTIALLY COVERING ONE SIDE OF SAID LATH, C. A SUBSTANTIALLY UNIFORM AQUEOUS LATEX ADHESIVE COATING ACROSS AN EXPOSED SIDE OF SAID GYPSUM LAYER FOR SECURING SAID WALL COVERING TO SAID RIGID WALL AND HYDRATING SAID GYPSUM, D. SAID RATIO OF AQUEOUS LATEX ADHESIVE TO GYPSUM IS SUCH THAT SAID AQUEOUS LATEX ADHESIVE SUPPLIES ABOUT THREE PARTS BY WEIGHT OF WATER FOR ABOUT TEN PARTS OF WEIGHT OF GYPSUM, AND E. SAID SEMI-HYDRATED FLEXIBLE GYPSUM BEING OF SUFFICIENT THICKNESS THAT SAID AQUEOUS LATEX ADHESIVE AFFORDS A SUFFICIENTLY CONTROLLED AMOUNT OF WATER TO HYDRAATE SAID GYPSUM AND FOR INVERTING SAID LATEX ADHESIVE, WHEREBY THE WALL COVERING MAY BE SHIPPED AND STORED IN ROLLS PREPARATORY TO INSTALLATION UTILIZING SAID APPLICATION OF AQUEOUS LATEX ADHESIVE.
Claim 3
Dependent Claim
161 words
A decorative wall covering for installation upon a rigid wall for iMparting a finished surface to the wall consisting essentially of: a. a flexible lath of mesh material, b. a substantially dry semi-hydrated flexible gypsum layer bonded on said material substantially covering one side of said lath, c. a substantially uniform aqueous latex adhesive coating across an exposed side of said gypsum layer for securing said wall covering to said rigid wall and hydrating said gypsum, d. said ratio of aqueous latex adhesive to gypsum is such that said aqueous latex adhesive supplies about three parts by weight of water for about ten parts of weight of gypsum, and e. said semi-hydrated flexible gypsum being of sufficient thickness that said aqueous latex adhesive affords a sufficiently controlled amount of water to hydrate said gypsum and for inverting said latex adhesive, whereby the wall covering may be shipped and stored in rolls preparatory to installation utilizing said application of aqueous latex adhesive.
Claim 4
Dependent Claim
161 words
A decorative wall covering for installation upon a rigid wall for iMparting a finished surface to the wall consisting essentially of: a. a flexible lath of mesh material, b. a substantially dry semi-hydrated flexible gypsum layer bonded on said material substantially covering one side of said lath, c. a substantially uniform aqueous latex adhesive coating across an exposed side of said gypsum layer for securing said wall covering to said rigid wall and hydrating said gypsum, d. said ratio of aqueous latex adhesive to gypsum is such that said aqueous latex adhesive supplies about three parts by weight of water for about ten parts of weight of gypsum, and e. said semi-hydrated flexible gypsum being of sufficient thickness that said aqueous latex adhesive affords a sufficiently controlled amount of water to hydrate said gypsum and for inverting said latex adhesive, whereby the wall covering may be shipped and stored in rolls preparatory to installation utilizing said application of aqueous latex adhesive.
Claim 5
Dependent Claim
15 words
The combination of claim 1, in which the aqueous latex adhesive includes a latex plasticizer.
Claim 6
Dependent Claim
15 words
The combination of claim 1, in which the aqueous latex adhesive includes a tackifying resin.
Claim 7
Dependent Claim
14 words
The combination of claim 1, in which the aqueous latex adhesive includes as thickener.
Claim 8
Dependent Claim
14 words
The combination of claim 1, in which the aqueous latex adhesive includes a biocide.
Claim 9
Dependent Claim
15 words
The combination of claim 1, in which the aqueous latex adhesive includes a fire-retardant additive.
Claim 10
Dependent Claim
18 words
The combination of claim 1, in which the aqueous latex adhesive comprises a water emulsion of polyvinyl acetate.
Claim 11
Dependent Claim
16 words
The combination of claim 7, in which the aqueous latex adhesive further includes a latex plasticizer.
Claim 12
Dependent Claim
16 words
The combination of claim 7, in which the aqueous latex adhesive further includes a tackifying resin.
Claim 13
Dependent Claim
15 words
The combination of claim 7, in which the aqueous latex adhesive further includes a biocide.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |