US3116382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic control systems incorporating pneumatically actuated switches
Assignee: ECONOLITE CORP
•
Filing: 1960-07-27
•
Granted: 1963-12-31
•
Expires: 1980-07-27
Abstract
No abstract record available.
Inventors
- 👤 Robert C Loomis
- 👤 Poor Andre De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:10
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/24; F; F15; F15B; F15B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PNEUMATIC CONTROL SYSTEM: A BODY FORMED WITH AN INTERIOR AIR CHAMBER; A PAIR OF CANTILEVERED ELECTRICAL CONTACTS NORMALLY SPACED APART; DIAPHRAGM MEANS FOR MOVING SAID CONTACT TOGETHER IN RESPONSE TO PRESSURE OF A PREDETERMINED LEVEL IN SAID CHAMBER; VENT PORT MEANS SELECTIVELY COMMUNICATING SAID CHAMBER WITH THE ATMOSPHERE, SAID VENT PORT MEANS BEING NORMALLY CLOSED AND BEING RESPONSIVE TO PRESSURE IN SAID CHAMBER TO OPEN AND VENT WHEN SAID PRESSURE EXCEEDS SAID PREDETERMINED LEVEL OF PRESSURE; DAMPER PORT MEANS COMMUNICATING SAID CHAMBER WITH THE ATMOSPHERE TO ALLOW A RESTRICTED FLOW OF
Claim 2
Dependent Claim
93 words
IN A PNEUMATIC CONTROL SYSTEM: A BODY FORMED WITH AN INTERIOR AIR CHAMBER; A PAIR OF CANTILEVERED ELECTRICAL CONTACTS NORMALLY SPACED APART; DIAPHRAGM MEANS FOR MOVING SAID CONTACT TOGETHER IN RESPONSE TO PRESSURE OF A PREDETERMINED LEVEL IN SAID CHAMBER; VENT PORT MEANS SELECTIVELY COMMUNICATING SAID CHAMBER WITH THE ATMOSPHERE, SAID VENT PORT MEANS BEING NORMALLY CLOSED AND BEING RESPONSIVE TO PRESSURE IN SAID CHAMBER TO OPEN AND VENT WHEN SAID PRESSURE EXCEEDS SAID PREDETERMINED LEVEL OF PRESSURE; DAMPER PORT MEANS COMMUNICATING SAID CHAMBER WITH THE ATMOSPHERE TO ALLOW A RESTRICTED FLOW OF
References Cited (Backward Citations)
US1231561A
Cited
AU1837634A
Cited
US2104632A
Cited
US2153277A
Cited
US2251180A
Cited
US2611045A
Cited
US2702840A
Cited
DE929491C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |