|
Match
|
Document |
Document Title |
|
|
6819216 |
Thermostat
A thermostat includes a wall plate unitarily molded of thermoplastic resin, a first metal plate holding a temperature sensing section, and a second metal plate holding a cam shaft. A fulcrum of a...
|
|
|
6617954 |
Tamper resistant temperature controller for a gas-fired heating device
A device for preventing the inadvertent rotation of a temperature selection dial associated with the temperature controller of a water heater. The device includes a spring-loaded prong that extends...
|
|
|
6496097 |
Dual circuit temperature controlled switch
A temperature responsive switch includes a housing, an actuator arm for movement in response to temperature conditions, a movable contact, and an adjustable contact connected to a auxiliary...
|
|
|
6064294 |
Temperature switch, particularly adjustable temperature regulator
A temperature regulator operating with a hydraulic expansion capsule or diastat (5) has a lever mechanism (30) for force transmission between the diastat and the switch spring (21) of a snap switch...
|
|
|
5621389 |
Apparatus for detecting a fire having a liquid filled sensor tube and compensation for changes in ambient temperature
A fire detection system includes an elongated liquid filled tube with a fluid coupled alarm switch, with a flexible diaphragm which senses a change from the liquid to vapor phase in the presence of...
|
|
|
5276433 |
Methods and apparatus for temperature sensing
A temperature sensor has a flexible nylon tube connected by a fluid-tight coupling to a metal bellows within a metal housing. The interior of the tube and bellows is filled with a pressurized...
|
|
|
5189269 |
Fluid pressure switch having a Belleville washer
A resilient diaphragm operated pressure switch has a Belleville spring washer with a dished spring disc nested in the center and supported on the inner periphery of the washer resisting movement of...
|
|
|
5162774 |
Remotely setting thermostatic switch assembly and refrigeration system employing same
A remotely changeable thermostat for a refrigeration or air conditioning system and method and system employing same. The thermostat has a fluid filled capsule with a diaphragm movably responsive...
|
|
|
5101188 |
Condition responsive switching apparatus
A condition responsive switching apparatus with an alarm feature for use in refrigeration appliances, such as freezers or the like. The switching apparatus includes a contact operator which moves...
|
|
|
4851627 |
Compact pressure sensitive switch for use in detecting fluid pressure changes
This pressure sensitive switch includes a bellows made of corrosion resistant material and with a hollow cylindrical body, which defines a pressure receiving surface on the outer surface of its one...
|
|
|
4841271 |
Trip-free resetting mechanism for an on-off unit
A trip-free mechanism for resetting an on-off unit, such as a thermostat (1), breakable by the tripping of an actuator element (3) from a first condition to a second condition comprises a resetting...
|
|
|
4758695 |
Automotive transmission control system and improved longevity therefor
An automotive transmission control is shown having pressure switches to sense the state of actuation of solenoid valves to provide logic signals to a microprocessor type of transmission control....
|
|
|
4698612 |
Temperature limiting control
A thermostatic switch assembly with a diaphragm responsive to pressure generated in a fluid filled temperature sensing bulb-and-capillary. The diaphragm contacts and moves a pivoted lever having a...
|
|
|
4651140 |
Fire detector
An improved fire detector vented to atmosphere, capable of closing or opening an alarm circuit on the happening of either two events, when the rate of rise of the temperature of the ambient...
|
|
|
4565989 |
Temperature control apparatus
A temperature control apparatus, for example a hydraulic temperature regulator or thermal cut-out, comprises three interchangeably interconnected subassemblies, namely: a box-like sheet metal...
|
|
|
4532490 |
Fail safe high limit control
Temperature limit control having a normally closed contact switch secured to a formed cup with vacuum operated formed diaphragm seal to cup bottom, contacts open on reduced vacuum as by boiling...
|
|
|
4490708 |
Condition responsive electric switch system, electrical switching device and method of operation thereof
A condition responsive electric switch system comprises switch means which includes at least one set of contact elements defining a preselected open position, a preselected closed position, and a...
|
|
|
4408178 |
Thermostatic switch
The chamber in the metal body is filled with Freon which starts to vaporize at a temperature below the operating temperature of the switch. The vapor pressure increases substantially as the...
|
|
|
4335283 |
Temperature compensated fill valve/pressure switch
A device (10) for filling a pneumatic tire and sensing the air pressure therein has a check valve (20) disposed within a valve stem (126b) and a pressure sensing switch which is temperature...
|
|
|
4262274 |
Thermal electric switch
A thermal electric switch having a thermally expansible material operating on an elastomeric diaphragm to operate a switch wherein the switch is an electrically conductible spring element and is...
|
|
|
4187684 |
Thermally responsive power elements with multiple vapor/gas filled capsules and hydraulic fluid transmissions
A thermally responsive power device is disclosed employing a thermally sensitive unit in which are housed multiple vapor/gas filled capsules which expand and contract in response to temperature...
|
|
|
4072933 |
Fire heat detector and/or burglar alarm
A detecting device for detecting heat due to the presence of fire for example. The detecting device includes an open-ended chamber closed by a resilient diaphragm. The diaphragm engages the open...
|
|
|
4072220 |
Apparatus for controlling actuating fluid pressure on vehicular friction clutch with compensation for decrease in friction coefficient at elevated temperature
A control apparatus provided with an electromagnetic valve assembly to selectively change the variation rate of a fluid pressure to actuate the clutch in dependence on the degree of opening of the...
|
|
|
4038613 |
Temperature responsive devices
An expansible box or bellows or diaphram box comprises two corrugated metal sheets secured together in a sealed manner about their rims. The box is arranged between a transmission lever and an...
|
|
|
3931483 |
Multiple circuit control switch having articulated cascaded operating mechanism
An electrical switch having a plurality of means adapted to be movable generally sequentially for switching power through the electrical switch. A plurality of means are adapted to be conjointly...
|
|
|
3925746 |
Oven valve circuit and thermostatic actuator thereof
A gas oven having one thermostat switch operated main burner solenoid valve utilizing a pilot heated thermoelectric generator for electrical power to energize the valve solenoid. The generator, the...
|
|
|
3896423 |
Fire and overheat detection system
A fire and overheat detection system having a tubular sensor with one end closed and one end open and having both a primary responder and a secondary responder, which is a confirmation responder....
|
|
|
3895217 |
Thermostatically controlled safety heater for aquariums
A thermostatically controlled safety heater for immersion in aquarium tanks comprising: a housing having an axially extending heat transmitting tube forming a chamber with linearly heat expansible,...
|
|
|
3883837 |
Thermal responsive switch
A thermal responsive switch employs a gas expansion operating member movable by changes in pressure of a gas charge in a chamber containing a carbonaceous adsorbent material formed from a compound...
|
|
|
3827012 |
FIRE DETECTOR
A fire detector has a diphragm within a chamber and an air passage between the chamber and the ambient within which the fire detector is mounted so as to allow air flow at a predetermined rate. The...
|
|
|
3810065 |
METHOD AND APPARATUS FOR HEAT DETECTION AND CONTROL
A capillary protector is disclosed in which contained material, vaporizable at a temperature of interest, is maintained in exclusively liquid state when the protector is at a temperature below such...
|
|
|
3809835 |
COMPRESSOR SUPERHEAT SWITCH WITH BELLOWS MOUNTING RING
A simple and easily assembled pressure and temperature responsive switch having a bellows type actuator and especially adapted to be used in an automobile air conditioning system. The switch...
|
|
|
3784947 |
TEMPERATURE RESPONSIVE SWITCH
This invention relates to a temperature switch and more particularly to a temperature responsive switch used in a catalytic converter generally found in internal combustion engine exhaust systems....
|
|
|
3760393 |
OVERHEAT DETECTION SYSTEM
A fire and overheat detection system. A primary sensor tube and a reference sensor tube each have one closed end and one responder end and contain a solid that reversibly emits gas in gross...
|
|
|
3721934 |
THERMOSTAT HAVING POSITIVE INSULATING LINER
A thermal control or protector having a conductive casing with two bi-metal arms extending as cantilevers into the casing from the ends thereof. The bi-metal arms have insulating sleeves...
|
|
|
3654578 |
CONDITION RESPONSIVE SWITCH MECHANISM
A condition responsive electric switch mechanism includes a switch having open and closed positions. A switch actuator is connected to the switch for moving it between its open and closed positions...
|
|
|
3636287 |
PRESSURE ACTUATABLE SNAP-ACTION SWITCH WITH SLIDE- AND CAM-ADJUSTING MEANS
The invention relates to a snap-action switch assembly of the type having a main lever arm and an omega spring. The lever arm is acted upon by a bellows and a coil spring which are adjacently...
|
|
|
3585328 |
PRESSURE SWITCH WITH A PLURALITY OF SNAP ACTING METAL DIAPHRAGMS COATED WITH METALLIC OXIDE
Plural snap-acting, pressure-responsive, metal diaphragms having dished portions which permit the diaphragms to move from one dished configuration to an inverted dished configuration with snap...
|
|
|
3569892 |
HEAT ACTUATED CONTACT UNIT FOR ELECTRICAL FIRE ALARM SYSTEMS
A totally sealed twin chamber thermostat for an electrical fire alarm system actuated by both slow and fast heat rise conditions.
|
|
|
3519971 |
FUSE INCLUDING IMPROVED MEANS RESPONSIVE TO THE OPERATION OF THE FUSE
|
|
|
3514734 |
THERMAL SENSING PRESSURE SWITCH
|
|
|
3505631 |
ELECTRIC THERMOSTAT SWITCH
|
|
|
3487348 |
TEMPERATURE COMPENSATED PRESSURE SWITCH
|
|
|
3485976 |
PRESSURE ACTUATED SWITCH AND PLUG ASSEMBLY
|
|
|
3436502 |
ELECTRIC PRESSURE-CONTROL SNAP SWITCH
|
|
|
3419693 |
Control switch for a fluid pressure system
|
|
|
3390365 |
Sensor for heat or temperature detection and fire detection
|
|
|
3379845 |
Fluid operated thermostat
|
|
|
3356803 |
Pressure switch having means for increasing the stroke of a bellows pressure sensing element
|
|
|
3354280 |
Condition responsive electric switch mechanism
|