Bizarre Patents
A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7315228 | Electro-magnetically enhanced current interrupter The present invention provides an apparatus and method of interrupting the current in a circuit wherein the magnetic pressure induced by current flow through a conductor causes the conductor to flow and thereby open the associated circuit. Magnetic pressure may be d... | 01/01/2008 |
| 6930268 | On-off electrical switch having quick make-brake spring loaded plunger mechanism A non-fused electrical slide switch. A handle assembly is operatively connected to a base, between on and off positions, and movable relative to a cover. The base has two pair of raised landings rising above four contact strips. Each pair of raised landings are disp... | 08/16/2005 |
| 6737952 | Combined pressure responsive electrical switch and temperature sensor device A combined pressure responsive electrical switch and temperature sensor device (10, 10′) is shown comprising a base member (12) mounting an electrical switch actuatable by a pressure responsive snap-acting disc (16) attached to a port fitting ... | 05/18/2004 |
| 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 across the face of a rotatable dial so as to prevent rota... | 09/09/2003 |
| 6252488 | Metal oxide varistors having thermal protection A layer of thermal fusible material is placed on one surface of a metal oxide varistor (MOV) to monitor the heating of the MOV due to applied voltage spikes. The thermal fusible material is part of the electrical circuit which includes the MOV and melts a... | 06/26/2001 |
| 6210036 | Connector thermal sensor An aircraft ground connector is described for delivering electrical power to aircraft parked at airports. The connector includes a thermal sensor arrangement which is positioned in the normal insulating body of such connector, which sensor reacts to a ris... | 04/03/2001 |
| 5844463 | Process and device for regulating the temperature of a fluid The present invention relates to a process for regulating the temperature of a fluid circuit comprising a thermostatic valve, which consists in maintaining a leak rate through the valve once the valve has been opened a first time in order to eliminate the... | 12/01/1998 |
| 5539370 | Inductive motor protective circuit breaker A molded case circuit breaker and current suppressing unit protects an electric motor without tripping during motor current reversal. Upon the occurrence of a short circuit within the protected circuit, the current suppressing feature rapidly suppresses t... | 07/23/1996 |
| 5199789 | Immersion well assembly An immersion well assembly for a fluid vessel, such as a boiler, hot water heater or piping system, having an existing threaded opening. A preexisting well housing a mechanical temperature sensor, which is connected to a temperature display or control fir... | 04/06/1993 |
| 5121094 | Dual condition responsive switch apparatus An electric switch is shown which is responsive separately to two different conditions, i.e. temperature and pressure. The switch includes a temperature sensing disc and a pressure sensing disc both coupled through several alternate motion transfer arrang... | 06/09/1992 |
| 5109210 | Thermal relay with remote controlled resetting and testing junctions A thermal relay is disclosed which can be remotely re-set and/or tripped by means of remote control electromagnets. The case of the relay has second fixing means adapted to receive first fixing means belonging to one and the same electromagnet can in which an ... | 04/28/1992 |
| 4998085 | Front surface grid for thermostat subbase A thermostat subbase has a conductive grid located on a first surface of an insulating base. Terminals for connection to the controlled heating and cooling apparatus and terminals for connection to a thermostat are integrally formed from the conductive gr... | 03/05/1991 |
| 4949060 | Fuse-isolator - actuator The invention provides an isolating fusible link, in series with a transformer primary circuit breaker device, for producing an isolating gap after an occurrence of a primary fault condition. More particularly, the invention provides an apparatus comprisi... | 08/14/1990 |
| 4764745 | Slide switch with externally mounted protective circuit breaker In this construction there are provided: a case; several contact members exposed within the case; several lead terminals electrically connected to some of the contact members, and a support member, all insert molded in the case and protruding outwards; an... | 08/16/1988 |
| 4528538 | Combined switch and circuit breaker A combined switch and circuit breaker device. The circuit breaker includes trip means for interrupting current flow when the current exceeds a predetermined level and for preventing the resumption of current flow until the trip means is reset. The device ... | 07/09/1985 |
| 4329669 | Circuit breaker with auxiliary tripping unit A manually operated two-pole excess-current protective circuit breaker includes a bimetal control for a switching latch serving both contact bridges. In case of an excess current, the circuit breaker is tripped by a switching latch actuated by the bimetal... | 05/11/1982 |
| 4326111 | Inertia switch device An inertia switch having an inertia mass, in the form of a ball resting in a conical seat, which mass is responsive to applied acceleration or deceleration in any direction in a horizontal plane and is arranged to operate changeover electrical contacts co... | 04/20/1982 |
| 4306210 | Two-stage temperature switch An electrical switch assembly including two separate, temperature-dependent electrical switches, one of the electrical switches being substantially mechanically acting and the second of the electrical switches being a non-mechanical, solid-state switch. T... | 12/15/1981 |
| 4255629 | Crash and rollover cutoff switch A crash-sensing switch assembly for breaking an electrical circuit has a weight pivotally supported on a horizontal surface with the center of gravity above the surface. The weight is free to move away from the surface if the assembly is inverted. Movemen... | 03/10/1981 |
| 4169999 | Thermal-magnetic switch A remotely actuable switch includes a housing defining a cavity having first and second thermally separated chambers, each enclosing a pair of spaced electrical contacts and each having an associated heating element. An electrically conductive fusible ele... | 10/02/1979 |
| 4053938 | Temperature sensing transformer primary switch A temperature sensing transformer primary switch for a distribution transformer, the switch being mounted within the distribution transformer below the level of the dielectric fluid and being manually operable externally of the transformer for opening the... | 10/11/1977 |
| 3951015 | Fuse handling tool Disclosed is a tool for removing and installing fuses in metal-enclosed switchgear. The switchgear includes one or more fuses and one or more isolating switches and operating mechanisms for isolating the fuses from a high voltage supply circuit. The fuses... | 04/20/1976 |
