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Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

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Class 236/88 - Magnetic release


Subclass of Class 236 - Automatic temperature and humidity regulation
Definition: Devices wherein the motor is a spring or weight motor which
No. of patents: 9
Last issue date: 05/31/2011


NumberTitleIssue Date
7950590Temperature triggered actuator
An actuator is disclosed which operates on the principle of the variable magnetic properties of materials with respect to temperature. As temperature is raised past Curie temperature, magnetic permeability of certain materials drops significantly to a value close to...
05/31/2011
6873514Integrated solenoid system
An integrated solenoid system including a single housing containing a solenoid, a controller and one or more electrical connections. The controller includes temperature compensating means and/or voltage compensating means thereby providing predetermined, substantial...
03/29/2005
4610142Apparatus and method for adjusting a curie effect temperature sensing system
An apparatus and method for controlling the operating temperatures and differential temperature of a curie effect temperature sensing switch is disclosed. The temperature switch is adapted to provide temperature control of a cold plate in a reagent refrig...
09/09/1986
4590999Fire extinguishing sprinkler valve
A thermal responsive valve having a temperature sensitive magnetic material for operating a valve in response to temperature variations. A valve is held closed by magnetic forces from mutually attractive magnetic means. One or more of the magnetic means a...
05/27/1986
4407448Temperature sensing valve
A temperature sensing valve includes a casing having an internal fluid passage member formed therein, a permanent magnet mounted in the casing, a valve body which includes a magnetically soft, amorphous metal member supported in a thermally sensitive regi...
10/04/1983
4361275Solenoid valve with temperature safety unit
A solenoid valve with a temperature safety unit includes a body having a fluid passage formed therein, a solenoid mounted in the body, a valve member operatively associated with the body for displacement to open or close the fluid passage in response to a...
11/30/1982
4303196Temperature sensitive valve
A temperature sensitive valve in which the annular valve seat is made of a thermal sensitive magnetic material having a Curie temperature that is of a preselected value. A vertically movable valve plug is positioned below the valve seat and contains a per...
12/01/1981
4125221Temperature-dependent liquid metal flowrate control device
A temperature-dependent liquid metal flowrate control device includes a magnet and a ferromagnetic member defining therebetween a flow path for liquid metal, the ferromagnetic member being formed of a material having a curie temperature at which a change ...
11/14/1978
4036339Temperature sensitively actuated hydraulic coupling for driving fans
A noise is generated unavoidably owing to hunting phenomenon that appears in process of increasing or decreasing torque to be transmitted by a hydraulic coupling in a hitherto known type, when it is subjected to change of the ambient temperature. A purpos...
07/19/1977
 
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