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Patent No. 5571247

Self Containing Enclosure for Protection from Killer Bees

A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.

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Class 337/386 - Comprising mechanical advantage or force multiplying means


Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter wherein the mechanical contact control structure
No. of patents: 9
Last issue date: 10/10/2006


NumberTitleIssue Date
7119654Temperature sensor
A temperature sensor for radiant heating units with a heating coil disposed in a cup includes a tube with a first end connected to a housing of a switch with a movable contact cooperating with stationery contacts in the housing. A two-section rod, which extends into...
10/10/2006
4736182Mechanical displacement amplifier and thermostat embodying same
A mechanical displacement amplifier is disclosed in which a displacement amplifying spring member essentially in the shape of a shallow V is positioned between a reference point structure and a displacement member so as to buckle in response to movement o...
04/05/1988
4467180Electric cooking system
A two-circuit automatic hotplate has a switch, which can be controlled both by a bimetallic strip of a power control device and by an expansion member of a hydraulic temperature sensor. The control heating system of the bimetallic strip is in series with ...
08/21/1984
4386263Electric cooker plate with a switch for preventing overheating
An electric hot plate has an overheating safety switch having a steatite housing which is inserted into the lower sheet cover plate of the hot plate and is supported with two feet on the lower side of the heating elements of the hot plate. A bimetallic me...
05/31/1983
4166996Thermostatic control device
Movement of the diaphragm pad occasioned by change in pressure within the diaphragm in response to a change in sensed temperature causes the bowed actuating spring to increase or decrease the degree of flexure to actuate the switch. In order to accommodat...
09/04/1979
4135081Electric cooking plate with a temperature limiter
A temperature limiter used as part of, or otherwise in combination with, an electric cooking plate. An improved switching hysteresis is enabled by a unique construction in which a laterally open recess is formed in a one-piece housing to receive a snap sw...
01/16/1979
4107638Thermostat
A thermostat useful for an appliance, which uses a snap action stressed-leaf spring having two stable stressed configurations for the making and breaking of a circuit. Stressing of the spring is provided by differential movement of parts of a heat probe....
08/15/1978
4008454Differential expansion rod and tube thermostat
A differential expansion rod and tube thermostat wherein the material of the inner rod has a much lower coefficient of thermal expansion than does the material of the outer tube. The thermostat is adapted to be mounted through an opening in the wall of an...
02/15/1977
3989926Device for preventing overheating of electrophotographic fixing device
A thermal fixing device for a xerographic reproducing apparatus includes a thin planar resistance heating element having a low thermal mass and a high coefficient of thermal expansion. The heating element is supported in such manner that one end thereof i...
11/02/1976
 
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