US3621892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin vacuum degassing and dispensing system and method
Assignee: THOMAS J GILLESPIE
•
Filing: 1969-09-04
•
Granted: 1971-11-23
•
Expires: 1989-09-04
Abstract
Abstract Resin dispensing system including resin vacuum degassing apparatus, a porting mechanism coupled to the degassing apparatus having an outlet and an inlet and interconnecting passageways controlled by diaphragm valves for each resin component, an evacuated mixing chamber coupled to the porting mechanism outlets and to a dispensing nozzle, the dispensing nozzle being coupled to an evacuatable chamber for receiving the mixed resin components.
Inventors
- 👤 Thomas J Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:27
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/80; B29B7/84; B01; B01D; B01D19/00; B01D19/0021
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
The system of claim 1 including third control means for closing each of said second pressure applying valve means and disconnecting said second pressure and for simultaneously opening said first pressure applying valve after a predetermined time for metering a preselected quantity of resin components into said mixing chamber.
Claim 2
Dependent Claim
63 words
The system of claim 2 wherein said valve means include solenoid-controlled valves and said first, second and third control means include means for energizing said solenoids and a timing device for deenergizing the solenoid associated with said third pressure-applying valve to close said valve and relay means for initially energizing said timer and the solenoids associated with said first and second pressure-applying valves.
Claim 3
Dependent Claim
235 words
A process for mixing and dispensing components of a resin system comprising distributing the resin components as a film, degassing the resin in said film, passing said degassed resin from said film to a first diaphragm valve, applying a first pressure to said first diaphragm valve closing said first valve, passing said resin component past a second diaphragm valve associated with said first diaphragm valve and at a second pressure lower than said first pressure for opening said second diaphragm valve and cycling said resin component to said film degassing, thereafter simultaneously applying said second pressure and a third pressure lower than said second pressure to said first diaphragm valve and applying said first pressure to said second diaphragm valve releasing said resin component into a mixing chamber and closing said second diaphragm valve, simultaneously with said feeding of resin component maintaining said mixing chamber under vacuum drawing resin component thereinto, correspondingly distributing, degassing and passing another resin component through an additional similarly pressure controlled first and second diaphragm valves arrangement feeding the another resin component into said mixing chamber; simultaneous with passing of resin components into said mixing chamber mixing said components; dispensing said mixed resin components into an evacuated chamber; and applying said first pressure to said first diaphragm valves ending flow of resin components therethrough and simultaneously applying said second pressure to said second diaphragm valves recycling said resin components for degassing.
References Cited (Backward Citations)
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Cited
US1991009A
Cited
GB801182A
Cited
US3229445A
Cited
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Cited
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Cited
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |