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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 137/46 - With servo connection to valve


Subclass of Class 137 - Fluid handling
Definition: Apparatus in which the pendulum or pivoted member controls
No. of patents: 11
Last issue date: 12/26/2006


NumberTitleIssue Date
7152615Earthquake actuated horizontal valve with micro switch
An earthquake actuated device includes a flapper-valve adapted to block a gas flow and a micro switch for closing or opening a circuit. A seismic sensor responds to accelerations characteristic of an earthquake. The sensor cooperates with a magnet in a flapper arm t...
12/26/2006
5271425Valve closing apparatus responsive to movement
A fully automatic valve closing apparatus that is responsive to movement between the apparatus and a substantially fixed structure, wherein the apparatus includes a supporting frame on which is mounted a pressure activated actuator which is adapted to be ...
12/21/1993
4979528Gas actuated valve system
A gas actuated valve system includes a gas switch disposed in a primary gas circuit upstream of a gas driven actuator. The switch is movable to an open position when a pilot gas is supplied under pressure to the gas switch through a pilot circuit, and is ...
12/25/1990
4920999Air actuated valve system with seismic controller
An air actuated valve system for shutting off fluid flow in a fluid conduit includes a seismic valve disposed in a seismic air circuit which is coupled to a primary air circuit. The primary air circuit delivers air at a high pressure to an air driven actu...
05/01/1990
4852600Air actuated valve system with seismic controller
An air actuated valve system for shutting off fluid flow in a fluid conduit includes a seismic valve disposed in a seismic air circuit which is coupled to a primary air circuit. The primary air circuit delivers air at a high pressure to an air driven actu...
08/01/1989
4587859Seismic trigger
An apparatus which is provided for closing a fluid valve in response to initial movement, as for example caused by a seismic disturbance, which is removably mountable to existing inline valves, such as gas valves. The apparatus includes a trigger which is...
05/13/1986
4545203Hydrostatic drive units
An hydrostatic drive unit for driving a motor vehicle is provided including a pump, a hydraulic motor, connecting means between said pump and motor, a branch line connected to the connecting means, a shut-off means located in said connecting means, measur...
10/08/1985
4531533Seismic trigger
An apparatus which is provided for closing a fluid valve in response to initial movement, as for example caused by a seismic disturbance, which is removably mountable to existing inline valves, such as gas valves. The apparatus includes a trigger which is...
07/30/1985
4201536Vibration responsive mechanism
A vibration responsive mechanism having a weight suspension rod pendulum which falls in response to the vibration of a base body. The mechanism comprises a responsive disc secured to said rod normally and coaxially and support balls which contact with and...
05/06/1980
4094332Earthquake-responsive fuel shut-off device
A master valve adapted for insertion in a fuel line to be controlled and a fluid-pressure-responsive actuator responsive to fuel line pressure for maintaining the valve in open position against the resistance of a valve-closing spring; and a normally clos...
06/13/1978
3938538Control valve apparatus
A control valve is disclosed which includes first and second valves. An inverted pendulum is operative with the valves such that when the pendulum rotates in one direction the first valve is opened and the second valve is closed, and when the pendulum rot...
02/17/1976
 
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