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Patent No. 5377411

Hair Cutting Appliance

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.

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Class 337/406 - Multiple contacts or plural circuit control means


Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter including at least two or more contact pairs
No. of patents: 13
Last issue date: 05/06/2008


NumberTitleIssue Date
7369030Fuse state indicator
A fuse state indicator includes an extension member, a secondary fuse link coupled to the extension member, and a contact pin configured to engage a first terminal element of a fuse. An end of the secondary fuse link is wrapped around the pin and establishes an elec...
05/06/2008
7239225Pyrotechnic circuit breaker
A circuit breaker including a pyrotechnic element configured to ablate, tear, or cut a portion of the circuit. The portion of the circuit to be broken may be formed to be readily broken and/or may be a current load-based fuse. Also, the circuit breaker may be config...
07/03/2007
7150228Gas pressure switch
A gas pressure switch is provided for an ignition and safety system for ammunition. The switch includes a housing; a piston actuator within the housing, the piston actuator being displaceable from an idle position to a contacting position by propellant gases of the ...
12/19/2006
7123124Pyrotechnic circuit breaker
A circuit breaker including a pyrotechnic element configured to ablate or cut a portion of the circuit so as to break the circuit, thereby breaking the circuit. The portion of the circuit to be broken may be specially formed to be readily ablated or cut, and/or may ...
10/17/2006
7063019Assemblies including extendable, reactive charge-containing actuator devices
An assembly including a support housing and an actuator device. The actuator device includes an extendable initiator cup including at least one non-random fold and at least in part defining a storage chamber containing a reactive charge reactable to produce reaction...
06/20/2006
6954132Pyrotechnic safety element
The invention relates to a pyrotechnic fuse element having a closed housing consisting of an electrically conductive material, in which an explosive is provided, the housing containing two terminal zones for electric contacting, which are electrically connected by m...
10/11/2005
6388554Circuit breaker device
A circuit breaker device including a first connection terminal, a second connection terminal, a heating portion electrically interconnecting the first connection terminal and the second connection terminal, and a claw lockingly engaged with the heating po...
05/14/2002
6252488Metal 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
6144283Temperature detectable large-current fuse and method of assembling the same
A temperature detectable current fuse comprises a temperature detecting fuse having a fusible portion, a current fuse having a fusible portion and a table portion provided at the fusible portion thereof, on which the fusible portion of the temperature det...
11/07/2000
6011458Large-current fuse unit
In large-current fuse unit, a large-current fuse has a pair of terminals interconnected by a fuse element, and a housing receives the large-current fuse therein, and a temperature fuse is mounted within the housing, and is disposed in close proximity to t...
01/04/2000
5963122Large-current fuse unit
In large-current fuse unit, a large-current fuse has a pair of terminals interconnected by a fuse element, and a housing receives the large-current fuse therein, and a temperature fuse is mounted within the housing, and is disposed in close proximity to t...
10/05/1999
4286247Temperature responsive device
A container is partially filled with a meltable body that has a predetermd melting point. An actuating member is arranged to translate through the container and displace the meltable body upon its melting....
08/25/1981
3958206Chemically augmented electrical fuse
A conventional fusible element is combined with exothermic reactive material such as PETN or a ribbon of aluminum-palladium to supply quickly released chemical energy for fast circuit interruption where the circuit-derived electrical energy available for ...
05/18/1976
 
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