US3754977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of spraying glass fiber and resins onto substrate which eliminates necessity of rolling
Assignee: GLAMOUR POOLS BY AZTEC
•
Filing: 1970-10-16
•
Granted: 1973-08-28
•
Expires: 1990-10-16
Abstract
Abstract An inert, non-absorbent dust is mixed with polyester resin in sufficient quantities that when the mixture is sprayed with fiber glass particles to form a rigid layer of reinforced plastic, the fiber glass particles lay flat without need of rolling.
Inventors
- 👤 J Lankheet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:47
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02; B44; B44C; B44C5/00; B44C5/04; B44C5/0423; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
The method of claim 1 in which the resin solution and dust mixture is filtered prior to being sprayed with said fiber glass.
Claim 2
Dependent Claim
45 words
The method of claim 1 in which the inert, non-absorbent dust used has a screen size in the range of about from 100 to 250 mesh and in which the ratio by volume of said dust to said resin solution is maintained at approximately 1:1.
Claim 3
Dependent Claim
24 words
The method of claim 1 in which said ratio of dust to resin solution is in the range of from about 1:2 to 2:1.
Claim 4
Dependent Claim
15 words
The method of claim 3 in which said inert, non-absorbent dust is a mineral dust.
Claim 5
Dependent Claim
25 words
The method of claim 3 in which said inert, non-absorbent dust is one of the group consisting of marble dust, talc dust and silica sand.
Claim 6
Dependent Claim
21 words
The method of claim 3 in which said dust is marble dust which will pass through screen of approximately 200 mesh.
Claim 7
Dependent Claim
15 words
The method of claim 1 in which said inert, non-absorbent dust is a mineral dust.
Claim 8
Dependent Claim
25 words
The method of claim 1 in which said inert, non-absorbent dust is one of the group consisting of marble dust, talc dust and silica sand.
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |