US3929284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable timer mechanism
Assignee: Individual
•
Filing: 1974-07-25
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Granted: 1975-12-30
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Expires: 1994-07-25
Abstract
Abstract A programmable timer mechanism for a dual temperature thermostat having high and low temperature settings. The mechanism includes two programmable members, each controlling, for a first predetermined period, the time in which the ''''high'''' thermostat is effective to maintain a desired temperature and, for a second predetermined period, the time in which the ''''low'''' thermostat is effective to maintain a desired temperature. One programmable member may correspond to a weekday life cycle of the occupant of a building to maintain high and low temperatures at appropriate times while the other member may correspond to a weekend life cycle to maintain such high and low temperatures at appropriate times. Automatic and manual switches are provided for activating the programmable members.
Inventors
- 👤 Mike Prewarski
- 👤 Edward Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:10
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/34; G05; G05D; G05D23/00; G05D23/19; G05D23/1902; G05D23/1904; G05D23/275
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
A dual temperature control system for controlling the temperature of a zone comprising: a. first and second zone thermostats; b. a first programmable means for determining the time said first and second thermostats are effective to control temperature of said zone; c. a second programmable means for determining the time said first and second thermostats are effective to control temperature; d. means for automatically selecting which of said first and second programmable means determines when said thermostats are effective to control temperature; and e. means for manually selecting one of said first and second programmable means to determine when said thermostats are effective to control temperature.
Claim 2
Dependent Claim
106 words
A dual temperature control system for controlling the temperature of a zone comprising: a. first and second zone thermostats; b. a first programmable means for determining the time said first and second thermostats are effective to control temperature of said zone; c. a second programmable means for determining the time said first and second thermostats are effective to control temperature; d. means for automatically selecting which of said first and second programmable means determines when said thermostats are effective to control temperature; and e. means for manually selecting one of said first and second programmable means to determine when said thermostats are effective to control temperature.
Claim 3
Dependent Claim
24 words
The system of claim 1 further comprising means for overriding said first and second programmable means to control temperature by one of said thermostats.
Claim 4
Dependent Claim
45 words
The system of claim 2 wherein said first thermostat is effective to control temperature during a first time period determined by the selected programmable means and said second thermostat is effective to control temperature during a second time period determined by the selected programmable means.
Claim 5
Dependent Claim
50 words
The system of claim 3 wherein said first and second thermostats have switch contacts and are connected in a series circuit relationship so that when the temperature is sufficient to close the switch contacts of both thermostats, an electrical circuit is completed through both thermostats to maintain a particular temperature.
Claim 6
Dependent Claim
17 words
The system of claim 4 further comprising a circuit board for interconnecting said first and second thermostats.
Claim 7
Dependent Claim
123 words
A dual temperature control system for controlling the temperature of a zone comprising: a. first and second zone thermostats which have switch contacts and are connected in a series circuit relationship so that when the temperature is sufficient to close the switch contacts of both thermostats, an electrical circuit is completed through both thermostats to maintain a desired temperature of said zone; b. a first programmable means for determining the time said first and second thermostats are effective to control temperature; c. a second programmable means for determining the time said first and second thermostats are effective to control temperature; and d. means for selecting one of said first and second programmable means to determine when said thermostats are effective to control temperature.
Claim 8
Dependent Claim
123 words
A dual temperature control system for controlling the temperature of a zone comprising: a. first and second zone thermostats which have switch contacts and are connected in a series circuit relationship so that when the temperature is sufficient to close the switch contacts of both thermostats, an electrical circuit is completed through both thermostats to maintain a desired temperature of said zone; b. a first programmable means for determining the time said first and second thermostats are effective to control temperature; c. a second programmable means for determining the time said first and second thermostats are effective to control temperature; and d. means for selecting one of said first and second programmable means to determine when said thermostats are effective to control temperature.
References Cited (Backward Citations)
US1985986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |