Boots – shoes – and leggings
Patent
1987-02-12
1989-06-27
Lall, Parshotam S.
Boots, shoes, and leggings
36455101, 165 22, 236 1B, G05D 2300
Patent
active
048430846
ABSTRACT:
A microcomputer-controlled thermostat for use in monitoring and controlling a single zone HVAC system which provides conditioned air to one or more zones. The thermostat can be programmed and used either as a monitor thermostat to control the HVAC unit alone and/or to control the HVAC unit and its damper in a multiple zone mode. The thermostat is also programmed as a slave thermostat in a master-slave relationship with a monitor thermostat. The microcomputer memory is supplemented with additional ROM containing control algorithms for use in system operation. Logic circuitry is used to recognize commands as being for operation of the HVAC unit, the operation of the damper, or selection of which systems sensors are to be enabled. A real time clock circuit in the monitor thermostat is used to supply data for time-based system operation.
REFERENCES:
patent: 4386649 (1983-06-01), Hines et al.
patent: 4388692 (1983-06-01), Jones et al.
patent: 4530395 (1985-07-01), Parker et al.
patent: 4682279 (1987-07-01), Watabe
patent: 4683939 (1987-08-01), Levine
patent: 4716957 (1988-01-01), Thompson et al.
Parker Edward
Parker Jeffrey L.
Lall Parshotam S.
Parker Electronics, Inc.
Ramirez Ellis B.
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