| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Inclination switch | US35737 | 1993-03-23 | US5365116A | 1994-11-15 | Kurt L. Lohss |
| An inclination responsive switch is provided for repetitively actuating and deactuating a high-current load, such as a low-voltage lamp in an automobile. A gravity responsive device produces a low-current output signal, which has a first state when the gravity responsive device is in a first inclination position and a second state when the device is in a second inclination position. A semiconductor switching device has a low-current input terminal connected with a low-current output of the gravity responsive device. The switching device amplifies the low-current electrical signal to produce a high-current electrical signal in order to supply high current to a load connected with the high-current output terminal of the switching device to actuate the load in one inclination position and terminates the high current to deactuate the load in the other inclination position. | ||||||
| 242 | Electrical tilt switch | US822641 | 1992-01-21 | US5209343A | 1993-05-11 | Robert P. Romano; James L. Weaver |
| A tilt switch having at least one conductive weight held within an inert atmosphere within a housing. The weight being free moving within the housing, moving from one end of the housing to the other as the angle of inclination of the housing is changed. At one end of the housing are positioned the contact points of at least two terminals. As the weight abuts against the terminals, electricity is conducted through the weight from one terminal to the other; thus completing a circuit. The terminals may be shaped, or the number of conductive weights increased, to increase the area of contact between the weights and the terminals. The increased surface area results in a more reliable tilt switch that has increased performance characteristics and a higher power capacity. | ||||||
| 243 | Tilt switch | US720035 | 1991-06-24 | US5136126A | 1992-08-04 | Carl D. Blair |
| A tilt switch is provided which comprises a plurality of rails which are connectable in electrical communication with circuit points of an electrical circuit. The preferred embodiment of the present invention comprises first, second and third rails which are associated in preselected pairs to define first and second tracks. In each of the two tracks, the distance between the preselected pair of rails is variable along the length of the tracks. This causes a spherical weight which is supported by a preselected one of the first and second tracks to alternatively fall out of contact with one rail and fall into contact with another rail. If first and second rails are connected to appropriate circuit points, the device can be used as a tilt switch to make and break electrical contact between appropriate components in response to changes in angular disposition of the switch. | ||||||
| 244 | Safety cutout device | US113183 | 1987-09-11 | US5039843A | 1991-08-13 | Manfred K. Muller |
| A safety cutout device for electric loads, particularly for use in pressing irons and portable heating apparatus, has a temperature switch, such as a bimetallic switch, which is adapted to be connected in series with the electric load. An electrical component adapted to be connected in parallel with the load and having an open and a closed switching state, and being normally open, is connected in series with a resistor adapted to be connected in parallel with the load and arranged in heat transfer relationship with the temperature switch and for heating the temperature switch to its operating temperature to open the switch. A further resistor, which continuously bridges and heats the temperature switch to an extent sufficient to maintain the temperature switch in its actuated open position, is connected in parallel with the temperature switch and adapted to be connected in series with the load. The electrical component may be a position or acceleration responsive switch, level sensor, photocell, photodiode, mercury switch, etc. The temperature switch, resistors and electrical component are mounted on a ceramic plate. | ||||||
| 245 | Motion sensor and detection system | US507612 | 1990-04-10 | US4980575A | 1990-12-25 | Howard M. Schenkel |
| A motion sensor comprises first and second housings comprised of electrically conductive material, first and second electrically conductive elements movably supported respectively in the first and second housings, and a joinder member for interconnection of the first and second housings, the joinder member being comprised of electrically insulative material and defining a passage permitting movement of the first and second electrically conductive means between the first and second housings responsively to orientation of the tag. The joinder member, the housings and the first and second electrically conductive elements are collectively dimensioned to provide for electrical conductivity between the first and second housings upon reorientation of the tag from a disposition wherein neither of the first and second electrically conductive elements are in registry with the joinder member. Detection circuitry is associated with the sensor to provide electrical output indication of the sensing of motion of parent structure on which the sensor and detection circuitry are disposed. | ||||||
| 246 | Personal security communication system | US326716 | 1989-03-21 | US4978946A | 1990-12-18 | Ken Nordholm; H. I. Eyers |
| A personal security communication system provides an indication that a worker may be incapacitated. The system may be configured as a buddy system comprising first and second portable units (100 and 200) acting as a pair (98). Each portable unit (100 and 200) produces status information and transmits data messages containing encoded status information to the other portable unit (200 and 100). The encoded status information includes a transmitting unit indentification number and alarm condition information produced by manual alarm switches (104 and 204) and sensors (102 and 202). The sensors (1102 and 202) may include a motion sensor (45) or a motion and position sensing switch (10) that produce motion and lack-of-motion signals that are encoded in the status information. If one unit of the pair (98) produces status information containing emergency alarm information or receives a data message from the other unit of the pair (98) containing emergency alarm information or fails to receive a data message from the other unit of the pair (98) within a predetermined time limit, an alarm is produced. | ||||||
| 247 | Motion detector | US200019 | 1988-05-27 | US4833281A | 1989-05-23 | David T. Maples |
| A motion detector particularly adapted for use with the transmitter of a motor vehicle keyless entry system. The motion detector causes the transmitter device carried by the user to transmit a coded signal when it is in motion, for example, as it is being carried by a user toward the vehicle. The motion detector includes a spool surrounded by and electrically insulated from a shell. A ball is positioned in the annular cavity around the spool. Associated electronics are provided to sense a change in state of the motion detector as an indication of motion. Changes of state of the motion detector occur when the ball moves into and out of direct contact with the spool or shell and further as the ball rolls around the annular cavity while being supported by both the spool and shell caused by surface roughness of the interface surfaces. | ||||||
| 248 | Electrical tilt switch | US791829 | 1985-10-28 | US4628160A | 1986-12-09 | Ronald D. Canevari |
| An electrical tilt switch includes a generally cylindrical cap member having a hollow interior with an internal inwardly extending ridge positioned a significant distance above its lower edge, a flat, generally cylindrical base member having a concave dished upper face, an annular insulating member interposed between the base and cap and fastened to each, electrical leads attached to the base and cap members, and a spherical contact member carried on the dished surface and movable against the ridge when the switch is tilted to a specified angle. For severe environmental conditions the preferred material for the cap, base and spherical contact member is a K Monel alloy. | ||||||
| 249 | Motion sensing alarm switch | US767850 | 1977-02-11 | US4168410A | 1979-09-18 | Albert B. Norris |
| An anti-theft alarm device for household items is disclosed. The device employs a motion sensor unit subject to magnetic control such that the alarm may be disabled, set to go off or reset after being sounded. The magnetic control is applied by a magnetic probe to a conductive ball sensor normally maintained on a nonconductive area between conducting surfaces of opposite polarity. When magnetic attraction is removed the ball is free to respond to motion and complete an alarm circuit. A mounting casing is provided, which may be used to mount the motion sensing unit and alarm circuit in a compact apparatus. Additional mounting hardware is provided to enable mounting the motion sensing unit on angulated or curved surfaces. The magnetic control functions may be set by radio control. | ||||||
| 250 | Inertia switch with resilient conductive support arm immersed in silicone base viscous fluid medium | US3790727D | 1972-12-13 | US3790727A | 1974-02-05 | STAND M; GLATZER S; LASERSON G; FEINMAN H; SCAPPATURA R |
| A force actuated electrical switch which discriminates between forces having varying time duration. A pendulum, including a conductive wire secured at one end and fastened to a conductive bob at the other end. The pendulum is enclosed in a cylindrical insulator containing a thick viscous fluid. At the lower end of the cylinder a metal ring is positioned adjacent to the bob and surrounding it. Under normal conditions the bob remains at the center of the ring and there is no contact. When the cylinder is moved in a horizontal direction for an extended time interval, contact is made between the bob and the ring and the switch is closed.
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| 251 | Conducting fluid inertia type switch with linearly movable conductive plunger contact | US3740503D | 1972-05-08 | US3740503A | 1973-06-19 | TOMOHIRO K; ONISHI K |
| A switch which is closed or opened by an external force applied thereto. A weight resiliently suspended in the switch casing and an electrically conductive liquid in the casing are alternatively caused by an external force applied thereto to move thereby to establish electrical connection between the two switch terminals.
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| 252 | Self-aligning motion detectors | US3674950D | 1970-10-21 | US3674950A | 1972-07-04 | SCOVILLE ANDREW E |
| A motion detector for energizing an alarm signal at a suitable location and which is responsive to linear motion of an object on which the detector may be mounted and capable of self-alignment to the object. The detector comprises a case or suitable enclosure within which an outer pendulum or pendulum body is supported for freedom of universal but sluggish movement and within which a second pendulum or body is supported for universal and unconstrained movement with respect to the outer pendulum. Contact is made between respective pendulums or bodies upon motion of the case to transmit an electrical signal to a suitable sensor, alarm or the like. The motion of the outer pendulum is suitably constrained as by immersing it in a liquid within the case or by providing it with a greater period than the inner pendulum or body in compound pendulum aspects. A contact ring may be located on the inner wall of the outer pendulum or other suitable contact means for electrical contact between the ring and the inner pendulum or between the contact means to close a control circuit.
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| 253 | Critical roll angle warning device for vehicles | US3564496D | 1968-02-05 | US3564496A | 1971-02-16 | BROOKS ALFRED P; OSTI ALDO P |
| ACTUATING SWITCH COMPRISING A CUP-SHAPED LOWER CONTACT IN WHICH A SMALL, ELECTRICALLY-CONDUCTIVE BALL ROLLS AS THE CUP IS DISPLACED FROM THE VERTICAL AND A HORIZONTAL UPPER CONTACT WHICH RETAINS THE BALL WITHIN THE CUP, THE UPPER CONTACT BEING VERTICALLY MOVABLE MANUALLY OR BY ELECTRICAL MEANS IN RESPONSE TO LOAD AND OPERATING CHARACTERISTICS OF THE VEHICLE SO AS TO VARY THE ANGLE OF ACTUATION WITH A VARYING CRITICAL ROLL ANGLE.
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| 254 | Force responsive switch | US3502831D | 1969-02-03 | US3502831A | 1970-03-24 | MCROSKEY LEONARD H |
| 255 | Acceleration actuated switch with explosive charge and thermitic material | US3475572D | 1968-03-05 | US3475572A | 1969-10-28 | VOYENTZIE PETER R; ZIEMBA RICHARD T |
| 256 | Inertia impact switch | US3474202D | 1967-12-07 | US3474202A | 1969-10-21 | BOBIER EARL E; WEBBER MILO R |
| 257 | Temperature-increase warning device | US3464047D | 1966-10-11 | US3464047A | 1969-08-26 | HERON ANDREW GEORGE |
| 258 | Actuator mechanism for vehicle washing controls | US3459910D | 1966-11-17 | US3459910A | 1969-08-05 | LIEFFRING GORDON V |
| 259 | Tilt control device | US44836765 | 1965-04-15 | US3359550A | 1967-12-19 | CHRISTENSEN LEONARD R |
| 260 | Self-lifting flatiron | US36492964 | 1964-05-05 | US3200521A | 1965-08-17 | WHITFIELD KENNETH O |
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