US3596023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure switch
Assignee: Eaton Corp
•
Filing: 1969-08-11
•
Granted: 1971-07-27
•
Expires: 1989-08-11
Abstract
Abstract In one modification the diaphragm pad or plate has a post engaging the spring seat which fits loosely in the housing to avoid interference. The spaced shoulders between the spring seat and the post provide the necessary lost motion connection to the switch actuating tongue which fits over and guides the post. In the other modification the post is guided by the tongue which fits in the notches on the post. The spring seat member is eliminated and the spring seats on the post. This design reduces the number of requisite parts and reduces friction impairing repeatability of the performance.
Inventors
- 👤 Kothe Erich
- 👤 William D Gruhn Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:37
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A pressure switch comprising a housing, a diaphragm in the housing with one side exposed to pressure variations, a diaphragm plate carried by the diaphragm in the central portion thereof, an integral post extending from the plate, a snap switch mounted in the housing and including an actuating tongue having a lost-motion connection with the post to be actuated in accordance with pressure variations, spring seat means operatively connected to the post, spring means seated on the seat means and acting to oppose movement of the diaphragm under influence of rising pressure, said switch including a separate guide tongue engaging the post to constrain the diaphragm post to generally linear travel over a prescribed path.
Claim 2
Dependent Claim
115 words
A pressure switch comprising a housing, a diaphragm in the housing with one side exposed to pressure variations, a diaphragm plate carried by the diaphragm in the central portion thereof, an integral post extending from the plate, a snap switch mounted in the housing and including an actuating tongue having a lost-motion connection with the post to be actuated in accordance with pressure variations, spring seat means operatively connected to the post, spring means seated on the seat means and acting to oppose movement of the diaphragm under influence of rising pressure, said switch including a separate guide tongue engaging the post to constrain the diaphragm post to generally linear travel over a prescribed path.
Claim 3
Dependent Claim
27 words
A pressure switch according to claim 1 in which the seat means includes a boss projecting loosely through the housing and engaged by the diaphragm plate post.
Claim 4
Dependent Claim
33 words
A pressure switch according to claim 2 in which the post and boss have spaced apart shoulders at the interface of the connection therebetween and the actuating tongue is positioned between the shoulders.
Claim 5
Dependent Claim
19 words
A pressure switch according to claim 1 in which the seat means is an integral part of the post.
Claim 6
Dependent Claim
29 words
A pressure switch according to claim 4 in which the post includes spaced shoulders between which the actuating tongue of the switch is engaged to provide the lost-motion connection.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |