Thermostat With I.c.e. Patents (Class 236/101C)
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Patent number: 4108372Abstract: A differential vacuum regulator having a housing provided with an inlet for being interconnected to a vacuum source and an outlet for being interconnected to a vacuum operated device, valve means being carried by the housing for interconnecting the inlet and the outlet together to provide a certain vacuum level at the outlet when the regulator senses a temperature below a certain temperature and for interconnecting the inlet and the outlet together to produce a different vacuum level at the outlet when the regulator is sensing the certain temperature.Type: GrantFiled: April 1, 1976Date of Patent: August 22, 1978Assignee: Robertshaw Controls CompanyInventor: Harold G. Brakebill
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Patent number: 4104880Abstract: In a system comprising a diaphragm type control valve with a diaphragm and a pair of chambers divided by the diaphragm, a plurality of orifices connecting the chambers and a thermo sensitive valve, the valve opening or closing period of the diaphragm type control valve is changed longer or shorter by opening and closing a bypass passage around one of the orifices by the thermo sensitive valve in response to temperature relative to the engine operating condition, whereby exhaust gas purification is attained with complete prevention of afterburn.Type: GrantFiled: April 28, 1976Date of Patent: August 8, 1978Assignee: Nippondenso Co., Ltd.Inventor: Mikiji Ito
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Patent number: 4098459Abstract: A double diaphragm, two stage vacuum break device in which the vacuum break plunger operates in a first stage in response to movement of one diaphragm assembly and in a second stage in response to movement of a pair of diaphragm assemblies. Metering valves are employed to cause delay of movement of the vacuum break devices in each of its ranges and delay can be eliminated from a selected one or both of the stages of movement by omitting a valve member. The stages of movement are under the control of separate sources of vacuum, a selected one of which may be under control of a temperature responsive valve. The range of movement of the plunger in its two stages of operation may be adjusted by mechanical means or a member responsive to temperature.Type: GrantFiled: July 30, 1976Date of Patent: July 4, 1978Assignee: Schmelzer CorporationInventor: Benjamin C. Benjamin
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Patent number: 4096837Abstract: An automatic choking device of an electric heating type for use in an automobile engine and the like having a carburetor main body, a choke valve provided in the carburetor main body, a shaft for rotating the choke valve which is supported on the carburetor main body in a freely rotable manner, a bimetal member connected to the rotational shaft for the choke valve by means of a connecting member, and to cause the rotational shaft to rotate, when heated, to open the choke valve, heating means having an electric heating mechanism to heat the bimetal member, and a switch means to open and close a connecting circuit between the heating means and a power source for the same, in which the electric heating mechanism functions to maintain the choke valve in a substantially perfectly closed state without actuating the bimetal member when the internal combustion engine is at a low temperature level, to open the choke valve by heating the bimetal as the temperature of the engine rises with lapse of time, and to lower thType: GrantFiled: December 8, 1976Date of Patent: June 27, 1978Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masahiko Iiyama, Makoto Ishii
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Patent number: 4081499Abstract: A hollow space of limited volume is defined in the central aperture formed through a heat-conducting plate, held in contact with a planar temperature-responsive resistance element, to receive the bimetal and heater supporting shaft. By varying the diameter and/or the length of the space, the rates of heat transmission from the heater to the bimetal and the resistance element can be properly correlated with each other so that any premature current control or overheating is effectively prevented.Type: GrantFiled: June 7, 1977Date of Patent: March 28, 1978Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Makoto Ishii, Masahiko Iiyama, Masaaki Ozaki
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Patent number: 4068800Abstract: A thermally responsive valve assembly comprising a two-portion valve body, one portion of which includes two nipples each having a passage therein. One of the nipples extends generally axially of the valve body and the other nipple extends generally perpendicularly to the first nipple with the passage in one of the nipples constituting an inlet passage and with the passage in the other nipple constituting an outlet passage with communication between the passages within the first portion of the valve body, and with one of the passages having a valve seat. Valve means are provided in the valve body for movement into and out of engagement with the valve seat, thereby selectively to block communication between the passages. The valve means comprises a dish-shaped thermostatic disk which is responsive to variations in temperature and changes in curvature from a first position in which the disk is bowed away from the valve seat and a second position in which the disk is bowed toward the valve seat.Type: GrantFiled: October 14, 1976Date of Patent: January 17, 1978Assignee: Texas Instruments IncorporatedInventor: John Doherty, Jr.
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Patent number: 4054620Abstract: In a carburetor choke assembly having a coiled bimetal thermostat enclosed between a housing and a cover, the cover is retained on the housing by a plurality of spring clips which are hooked to the housing and have a serrated edge gripping the cover.Type: GrantFiled: November 26, 1976Date of Patent: October 18, 1977Assignee: General Motors CorporationInventor: Frank A. Daigler
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Patent number: 4046319Abstract: An adjustable automotive vehicle thermostat is disclosed in which the adjusting member extends through the thermostat housing so that adjustments of the temperature response of the thermostat may be made without having to remove the thermostat from the vehicle. This allows for making adjustments for an engine to run warmer in colder climates and cooler in warmer climates without having to remove the thermostat from the vehicle.Type: GrantFiled: November 20, 1975Date of Patent: September 6, 1977Assignee: Lawrence Peska Associates, Inc.Inventor: David C. Myers
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Patent number: 4029257Abstract: A thermally actuated valve includes a snap action bimetal valving member enclosed in a cartridge which is inserted in a hollow fitting arranged for contact with a heated medium such as the coolant of an internal combustion engine.Type: GrantFiled: October 8, 1975Date of Patent: June 14, 1977Assignee: Borg-Warner CorporationInventors: Patrick A. Jenkins, Ronald E. Reinke
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Patent number: 4025042Abstract: A thermally actuated valve assembly comprising a housing having a passage extending therethrough with the passage having an inlet, an outlet and a valve seat therebetween. A thermostatic dish-shaped bimetallic disk constituting a valve member is positioned in the passage and is abruptly movable over center from a first curvature position in which the outer periphery of the disk is in engagement with the valve seat thereby to block communication through the passage and a second curvature position in which the disk is clear of the valve seat to permit the flow of fluid therepast. The disk is movable from its first to its second curvature position upon being subjected to a first temperature and is returnable from its second to its first curvature position upon being subjected to a second temperature. A spring member biases the disk toward the valve seat and holds the disk in sealing engagement therewith when the disk is in its first curvature position.Type: GrantFiled: September 22, 1975Date of Patent: May 24, 1977Assignee: Texas Instruments IncorporatedInventors: John Doherty, Jr., Youn H. Ting
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Patent number: 3989186Abstract: In an internal combustion engine air cleaner snorkel having an end open to ambient temperature air and an auxiliary inlet open to heated air, the induction air flow temperature is regulated by a pivoted damper assembly having a guide member positioned by a coiled bimetal and a damper member biased by a torsion spring for concomitant operation with the guide member. The damper member has a main blade portion responsive to the induction air flow rate and controlling ambient air flow and a pair of lateral blade portions controlling heated air flow but unresponsive to the induction air flow rate. Under conditions of high induction air flow the damper member moves away from the guide member against the bias of the torsion spring to permit ambient air flow through the open end and to block heated air flow through the auxiliary inlet.Type: GrantFiled: September 3, 1974Date of Patent: November 2, 1976Assignee: General Motors CorporationInventor: John D. McMichael