公开(公告)号：US3620448A

公开(公告)日：1971-11-16

申请号：US3620448D

申请日：1969-09-25

Applicant: HONEYWELL INC

Inventor： NELSON CLIFFORD L ,  SUTTON DAVID J

IPC: G05D23/32 ,  F23N5/20

CPC classification number: G05D23/32

Abstract: A clock-thermostat system in which the thermostat located in the controlled space is connected to the furnace and a power supply by two wires which energize the synchronous clock motor as well as transmit information as to whether the thermostat is calling for heat. The thermostatic switch is connected to a rectifier that superimposes a direct current component on the alternating current supply to the clock motor, which component is sensed by control apparatus at the furnace.

公开(公告)号：US3284002A

公开(公告)日：1966-11-08

申请号：US40639764

申请日：1964-10-26

Applicant: HONEYWELL INC

Inventor： EDELMAN WALTER E ,  SUTTON DAVID J

IPC: G05D23/30 ,  H01H37/14 ,  H05B1/02

CPC classification number: H05B1/0213 ,  G05D23/30 ,  H01H37/14