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Patent Searching and Data


Matches 551 - 600 out of 18,949

Document Document Title
WO/1991/010249A1
A resilient element such as a thin flat plate or disc spring, commonly known as a ''Belleville'' spring, which is capable of deflection along an axis normal to its surface is modified to include an amplifying segment disposed in a centra...  
WO/1991/006685A1
This invention provides a non-magnetic, austenitic, corrosion resistant stainless steel alloy having improved machinability, a consitently reproduceable coefficient of thermal expansion, and an essentially ferrite-free structure. The all...  
WO/1991/005357A1
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 (72) which moves between first, second, and third pos...  
WO/1991/005266A1
This invention relates to an impact sensor which does not have any electric contacts exposed to the open air and any moving portions but has high durability and high reliability and can reliably detect collision of a car for a long perio...  
WO1991000607A3  
WO/1991/000607A2
A pneumatic switch unit includes a switch housing. A conductive contact spring is mounted between diametric supports, one being adjustable. The spring has a central actuator arm and an offset contact arm interconnected to an encircling f...  
WO/1991/000406A1
The invention concerns a safety device for the closure edge (5) of a door (2) or similar item. A hollow-section flexible rubber strip (6) is fitted to the closure edge, the cavity (7) in the hollow strip being linked at one end, by means...  
WO/1990/015977A1
A fluid control valve (10) with leak detection and containment features for use in a fluid handling system incorporating one or more flow controlling devices each including: an actuator (24); a weir valve (22) and associated valve housin...  
WO/1990/015315A1
The detector (10) has two disc shaped magnets that are magnetized through their respective thicknesses. One magnet (91) is fixedly coupled to a container, and the other magnet (85) is left free to slide transversely with respect to the f...  
WO/1990/011607A1
An inertia switch for a supplemental inflatable restraint system. The switch comprises a casing that is divided into two chambers by an axially movable diaphragm. In one embodiment, the diaphragm carries an electrical contact on one face...  
WO/1990/010944A1
In an acceleration sensor with a mass moved in dependence upon inertia which is held in its position of rest in a housing by two springs secured and symmetrically engaging therein and which actuates a switch at a certain acceleration thr...  
WO/1990/010301A1
This invention relates to a new class of the design of mechanical crash-detecting sensors. A sensing mass (65, 14, 84) is biased by a spring (63), a diaphragm (13) or one or more cantilever beams (81) with a relatively high biasing force...  
WO/1990/010299A1
Layers of a thin, electrically insulating material are bonded together to form a switch. The bottom layer of the switch has electrically conductive areas aligned with openings through a second layer. A third layer has a pattern of spaced...  
WO/1990/010302A1
This invention includes crash sensors designed to be used for frontal and side impact sensing and the strategies of using these sensors. It is analyzed and shown that velocity sensing or damped sensors are desirable. Inertially damped se...  
WO/1990/005976A1
An electrical device includes an electrical element (12); a container (10) housing the electrical element; a rigid electrical terminal (22) extending through a hole in a wall (20) of the container; a bridge (40) between the wall and the ...  
WO/1990/003040A1
A crash sensor, designed for arrangement in the crush zone of a motor vehicle (10), is operative to determine when and if a crash is severe enough to deploy the passive restraint system (e.g. airbag or seat belt tensioner) of the vehicle...  
WO/1990/001789A1
The ball-in-tube, gas-damped crash sensor includes a metallic sleeve (16) with an inner tubular passage (17). A spherical, magnetically permeable, electrically conductive sensing mass (18) is located in the passage for movement between f...  
WO/1990/000806A1
A control device, switch unit therefor and methods of making the same are provided. The electrical switch unit (31) comprises a switch (32) having a movable actuator (33), a lever (34) pivotally carried by the switch (31) and having one ...  
WO/1990/000734A1
A mechanical transducer comprises a converter which comprises a plurality of elongate flexible elements (1) joined together at their opposite ends and spaced at intervals around a longitudinal axis of the transducer. The opposite ends (2...  
WO/1990/000482A1
A crash sensor (12) for automobiles of the type including a ball (20) moving against viscous damping in a closed tube (24, 124, 224) has a power transistor (150) to switch power in the firing circuit (14, 19, 219). A resistance sensing c...  
WO/1989/011658A1
A sensor for measuring the motional parameter of an object in the event of an accident includes a support (H), by which it is attached to the object, a sensor element (M/K/C), which emits an electrical sensor signal in the event of a rel...  
WO/1989/010623A1
An apparatus for detecting inclination and/or inertial/centrifugal forces and for generating a signal when such criteria exceed a pre-determined level. The apparatus comprises a box in which is housed a pivotal conductive element which t...  
WO/1989/007830A1
Impact sensor in motor vehicles with a safety system such as an air bag or belt tensioner for a passenger-restraining system. The sensor is arranged in the electrical circuit of a trip circuit of the safety system, which is closed by the...  
WO/1989/006873A1
A circuit is provided to protect a liquid-filled electrical power transformer (10) from damage due to an internal fault which causes a rapid rise in pressure. A pressure transmitter assembly (12) converts the internal pressure of the tra...  
WO/1989/004542A1
The present invention provides a centrifugally activated switch (40) for mounting a rotor (29) and which provides an alternate current path for the induced current. The switch comprises a housing (42), a shaft (44) rotatable with the hou...  
WO/1989/001233A1
A stability protection device for electrical appliances which are freestanding in their operating position, in particular for appliances having an electric heating arrangement and a switch connected to the power supply to the appliance, ...  
WO/1988/010504A1
An electrical pressure switch (12) is used on a hydraulic system to indicate the presence of a minimum operating pressure. The hydraulic fluid acts on a piston (34) to move the piston (34) against a force exerted by a calibration spring ...  
WO/1988/008613A1
An electric switch is actuated by means of an inertial mass movably accommodated in a housing by at least one spring when the acceleration exceeds a predetermined valve. For this purpose, a steel spring ribbon curved about its longitudin...  
WO/1988/004459A1
A warning contact is mechanically established by an oscillation and vibration contact having upper contacting means (1) resiliently carried by cylindrical compression springs (3) on the lower means (2). Since its ability to remain in pos...  
WO/1988/003701A1
A differential pressure switch includes a housing which carries a switch assembly which is actuated by movement of a differential pressure responsive piston slidable within the housing. The piston shifts in response to pressure different...  
WO/1988/003725A1
Trimming of a trimmable microminiature force-sensitive switching device (10) that includes a silicon substrate (12) having a reduced-thickness, deflectable member (14) adapted to change its deflection in response to changes in the extern...  
WO/1988/001433A1
A mechanical disturbance detection switch comprises a chassis plate (1) and a pendulum member in the form of a disc (3) rotatably mounted upon a shaft (2) projecting from the chassis plate. The pendulum disc (3) has an eccentric weight (...  
WO/1988/000539A1
The ball detector for detecting the limit value of an acceleration or a deceleration of motor vehicles is intended to energize an automatic device which switches on the distress lights in the case of a shock or turning over, total or par...  
WO/1988/000325A1
An article in the form of a projectile (10, 50), a shock-sensitive switch (101, 110) or a sabot (131) having an active component of shape-memory alloy (14, 104, 130) which exhibits the shape-memory effect to provide a mechanical movement...  
WO/1987/004560A1
Safety disconnection device for electrical users, in particular for use in smoothing irons and portable heaters. It comprises a thermal switch (1) with another switch (22) connected in parallel with the user (R), a dropping resistor (R1)...  
WO/1987/003547A1
A detector (13) of the inflation pressure of motor vehicle tyres comprises a manometric switch activated by the tyre pressure in order to monitor said pressure. The manometric switch comprises a reference pressure chamber (21) isolated f...  
WO/1987/003546A1
A detector (13) of the inflation pressure of motor vehicle tyres is attached to the circumference of the rim of a wheel and comprises a manometric switch activated by the tyre pressure in order to monitor the said pressure. The manometri...  
WO/1986/007654A1
To protect the contact of a centrifugal switch and to prevent it from arcing in an induction motor. A TRIAC (triod AC semiconductor switch) is connected in parallel with the contact of a centrifugal device in a centrifugal switch, so tha...  
WO/1986/007266A1
A pressure sensitive member (15) having first and second configurations, the member being movable from said first to said second configuration by application of an increased differential pressure on said member, the member having no stab...  
WO/1985/005219A1
This new micro-mechanical switch is characterized by its very simple design, the very simple operating links between its component parts, the extremely small movement and play of the switching element(s), a material composition specific ...  
WO/1985/003383A1
A microminiature switch (104) for digitizing different valued external conditions, such as pressure, temperature or acceleration. The switch (104) includes a silicon wafer (108) having a deflectable, reduced-thickness membrane (106) adap...  
WO/1985/001830A1
Plant for setting on and setting off a pump driven by an electric motor by means of an electric switch mounted in a float which controls the setting on or setting off of the pump as a function of the water level by means of a spherical c...  
WO/1985/000464A1
A pressure switch having mechanical and solid state components. The switch includes mechanical components that are arranged so the mechanical components provide the electrical connections between a motor and an electric source for the mo...  
WO/1985/000204A1
Improvement to electro-fluidic relays susceptible of indicating either the maximal or the minimal threshold of pressure of a fluid circuit or the position of a movable member of a jack. The relay is comprised of a connector (1, 2) secure...  
WO/1984/004962A1
Device generating an electric coincidence signal when a body pivoting with respect to a horizontal rotation axis takes up a predetermined angular position to be characterized, with respect to said axis. According to the present invention...  
WO/1984/003585A1
A ferromagnetic ball (1) is mounted between dished first and second contacts (2 and 5) and subjected to magnetic restraint tending to retain the ball (1) in its central, rest position by means of a rare earth type magnet (7) which is acc...  
WO/1983/003386A1
A keyboard assembly (Fig. 1, 11) is constructed of first light transmisssion members (13), second light transmission members (15), a key actuation assembly (17) having a matrix of keybuttons (25), plural light source assembly (19) and pl...  
WO/1983/003160A1
To protect the operator of an electrically supplied apparatus in a damp room against an electric discharge, there is provided a protection device comprised of a probe formed by two conductors (44, 45; 46, 47) which cannot come in contact...  
WO/1983/002832A1
A temperature responsive control unit for controlling either cooling means such as a freezer or refrigerator or a space heater employs a first temperature sensing element (3A) responsive to temperature in the immediate vicinity of an eva...  
WO/1983/002523A1
In certain classes of displacement indicators it is beneficial to disallow certain outputs in response to certain temperature conditions. In prior displacement indicators this has been achieved through use of extrinsive devices or intern...  

Matches 551 - 600 out of 18,949