US3602427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure discriminator
Assignee: Honeywell Inc
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Filing: 1970-05-06
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Granted: 1971-08-31
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Expires: 1990-05-06
Abstract
Abstract A pneumatic pressure-responsive apparatus utilizing diaphragm logic which selects and transmits the highest of a plurality of input pressures.
Inventors
- 👤 Frederick D Joesting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:47
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/62; F24F11/70; F24F11/72; F24F11/80; F24F11/83; F24F11/84; F24F11/30; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F3/00; F24F2003/003; F24F2003/005; F24F2003/006; F24F2110/00; F24F2110/10; F24F2110/20; F24F2221/00; F24F2221/54; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2496; Y10T137/2559; Y10T137/2564
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
Pressure-responsive apparatus adapted to selectively transmit the highest of a plurality of input pressures comprising: a plurality of valve means, each of said valve means including, housing means, diaphragm means dividing the housing means into a control chamber and an inlet chamber, each control chamber being adapted to receive an input pressure, and partition means disposed within the inlet chamber and arranged to operate in sealable relation with the diaphragm means to further define an outlet chamber; fluid supply means including restriction means, said fluid supply means communicating with the inlet chamber of the first of said plurality of valve means; output means communicating with said fluid supply means downstream of said restriction means; exhaust means communicating with the outlet chamber of the last of said valve means; and connection means serially interconnecting the outlet chamber of the first of said plurality of valve means, the inlet chamber of the last of said plurality of valve means, and both the output and the input chambers of each of the other of the plurality of valve means.
Claim 2
Dependent Claim
176 words
Pressure-responsive apparatus adapted to selectively transmit the highest of a plurality of input pressures comprising: a plurality of valve means, each of said valve means including, housing means, diaphragm means dividing the housing means into a control chamber and an inlet chamber, each control chamber being adapted to receive an input pressure, and partition means disposed within the inlet chamber and arranged to operate in sealable relation with the diaphragm means to further define an outlet chamber; fluid supply means including restriction means, said fluid supply means communicating with the inlet chamber of the first of said plurality of valve means; output means communicating with said fluid supply means downstream of said restriction means; exhaust means communicating with the outlet chamber of the last of said valve means; and connection means serially interconnecting the outlet chamber of the first of said plurality of valve means, the inlet chamber of the last of said plurality of valve means, and both the output and the input chambers of each of the other of the plurality of valve means.
Claim 3
Dependent Claim
15 words
Pressure-responsive apparatus is described in claim 1 wherein said output means includes a restriction means.
Claim 4
Dependent Claim
87 words
Pressure-responsive apparatus as described in claim 1 in combination with a system for optimally controlling a physical condition in a plurality of zones, each of the zones having a condition-responsive device, said combination including: interconnected sets of said condition-responsive devices and said control chambers of said valve means; and output means in communication with means capable of affecting a change in said physical condition, whereby the condition-changing capability of said means is varied in accordance with the demand for such variation in the zone of greatest deviation.
Claim 5
Dependent Claim
121 words
Pressure-responsive apparatus according to claim 1 in combination with low-pressure selection apparatus comprising: a like plurality of valve means; fluid supply means including restriction means, said fluid supply means communicating with each of the inlet chambers of said like plurality of valve means; output means communicating with said fluid supply means downstream of said restriction means; exhaust means communicating with each of the outlet chambers of said like plurality of valve means; connection means interconnecting sets of control chambers in said like plurality of valve means and in said plurality of valve means in said pressure-responsive apparatus, whereby the highest and the lowest of the input pressures received by said combination are transmitted by the respective output means of said combination.
Claim 6
Dependent Claim
93 words
The combination according to claim 4 in combination with a system for optimally controlling a physical condition in a plurality of zones, of each of the zones having a condition-responsive device, said combination including: interconnected sets of said condition-responsive devices and said connection means; and output means of both the pressure-responsive apparatus and the low-pressure selection apparatus in communication with means capable of affecting a change in said physical condition, whereby the condition-changing capability of said means is varied in accordance With the demand for such variation in the zones of greatest deviation.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |