Patent US4501369A successfully refreshed from Google Patents.
Patent US3746174A successfully refreshed from Google Patents.
Patent US3024435A successfully refreshed from Google Patents.
Patent US1927682A successfully refreshed from Google Patents.
US4433016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple glazed unit bonded with fiber-reinforced silicate cement
Assignee: PPG Industries Inc
•
Filing: 1982-06-14
•
Granted: 1984-02-21
•
Expires: 2002-06-14
Abstract
Abstract A multiple glazed unit wherein glass sheets are bonded together and held in spaced relationship by means of a fiber-reinforced alkali silicate based cement composition is disclosed.
Inventors
- 👤 James E. Neely, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:01
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/06; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C09; C09D; C09D1/00; C09D1/02; C09J; C09J1/00; C09J1/02; C09J5/00; C09J5/06; E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66333; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/31623
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
88 words
A method for bonding two sheets of glass in spaced relationship comprising the steps of: a. mixing sodium silicate, potassium silicate, filler and reinforcing fibers with water to form a cement composition; b. applying said cement composition between two glass sheets about the perimeter portion to be bonded; c. exposing said cement composition to sufficient temperature for sufficient time to dry the cement composition, thereby bonding said glass sheets in spaced relationship; and d. applying an organic sealant between the glass about the perimeter portion outside the cement.
Claim 2
Independent Claim
88 words
A method for bonding two sheets of glass in spaced relationship comprising the steps of: a. mixing sodium silicate, potassium silicate, filler and reinforcing fibers with water to form a cement composition; b. applying said cement composition between two glass sheets about the perimeter portion to be bonded; c. exposing said cement composition to sufficient temperature for sufficient time to dry the cement composition, thereby bonding said glass sheets in spaced relationship; and d. applying an organic sealant between the glass about the perimeter portion outside the cement.
Claim 3
Dependent Claim
20 words
The method according to claim 1, wherein the reinforcing fibers are selected from the group consisting of nylon and Dacron.
Claim 4
Dependent Claim
21 words
The method according to claim 1, wherein said filler is selected from the group consisting of talc, silica and mixtures thereof.
Claim 5
Dependent Claim
14 words
The method according to claim 1, wherein the cement composition further comprises a desiccant.
Claim 6
Dependent Claim
11 words
The method according to claim 4, wherein said desiccant is hydrated.
Claim 7
Dependent Claim
60 words
An article of manufacture which comprises: a. at least two glass sheets in spaced relationship; b. a cement composition consisting essentially of sodium silicate, potassium silicate, filler and reinforcing fibers; and wherein said glass sheets are bonded together about the perimeter portion in spaced relationship by said cement composition and an organic sealant about the perimeter portion outside said cement.
Claim 8
Dependent Claim
60 words
An article of manufacture which comprises: a. at least two glass sheets in spaced relationship; b. a cement composition consisting essentially of sodium silicate, potassium silicate, filler and reinforcing fibers; and wherein said glass sheets are bonded together about the perimeter portion in spaced relationship by said cement composition and an organic sealant about the perimeter portion outside said cement.
Claim 9
Dependent Claim
20 words
An article according to claim 6, wherein said reinforcing fibers are selected from the group consisting of nylon and Dacron.
Claim 10
Dependent Claim
24 words
An article according to claim 7, wherein said fibers have an average length from about 1/4 to 3/4 inch (about 6.35 to 19.05 millimeters).
Claim 11
Dependent Claim
21 words
An article according to claim 6, wherein said filler is selected from the group consisting of talc, silica and mixtures thereof.
Claim 12
Dependent Claim
14 words
An article according to claim 6, wherein said cement composition further comprises a desiccant.
References Cited (Backward Citations)
US2662022A
Cited
US3178299A
Cited
US3445257A
Cited
US3454410A
Cited
US3930876A
Cited
US3943231A
Cited
US3996409A
Cited
US3919023A
Cited
US4173668A
Cited
US4205104A
Cited
US4149348A
Cited
US4216190A
Cited
US4288252A
Cited
US4334941A
Cited
US4319926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |