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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 251/32 - Latched pilot valve


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which the pilot valve is engaged in one
No. of patents: 13
Last issue date: 03/14/2006


NumberTitleIssue Date
7011289Valve
A sliding spool valve (1) is provided for controlling flow of fluid especially between an inlet (2) at a relatively high pressure and an outlet (6) at a relatively low pressure. Wherein the spool valve is reciprocally displaced between open and ...
03/14/2006
6315265Variable valve timing actuator
The invention involves a variable valve timing actuator that allows the opening and closing of engine valves to be variably and individually controlled without using a camshaft. The invention utilizes energy regeneration so energy delivered to a valve whi...
11/13/2001
5683071Apparatus for controlling selectively engageable detents in a pilot controller
A pilot hydraulic system controller including a pilot controller valve for controlling the flow of hydraulic fluid to actuate a primary hydraulic system valve, a pilot controller lockout valve, and a detent control circuit for selectively energizing a det...
11/04/1997
4989628Moisture-responsive valve assembly
A moisture-responsive valve assembly includes a housing having a moisture-swellable body to swell in volume in response to soil moisture, and a bi-stable snap-action device for controlling the valve in response to the volume of the moisture-swellable body...
02/05/1991
4627467Pilot operated directional control valve
Directional control valve includes a manually operated pilot valve stage and a hydraulically operated power valve stage to isolate the pilot valve stage from the effects of the high axial flows passing through the power valve stage. The pilot valve is spr...
12/09/1986
4619435Control valve apparatus for pneumatic tools
An improved flow control valve apparatus for pneumatically powered tools that include a motor and feed and retract apparatus driven by the motor. The control valve apparatus includes a main flow valve and a retract control valve each of which is controlle...
10/28/1986
4561628Electromagnetically operated hydraulic actuator
An electromagnetically driven hydraulic actuator for driving an electromagnetic valve for which a larger valve operating force is required. The pilot control valve and the actuator piston are enclosed within the stationary magnetic core of the electromagn...
12/31/1985
4544128Cartridge solenoid valve with manual override
A valve structure (10) wherein a main valve (11) is controlled by a pilot valve (15) which is normally selectively positioned by the coaction of a solenoid coil (17) and plunger (16). A manual override structure (22) is provided for selectively permitting...
10/01/1985
4405001Overflow preventing valve apparatus
An overflow preventing valve apparatus comprises a valve main body provided at a terminal end of a fluid supplying system passage, a main valve fixed to a separating membrane stretched within the valve main body to separate an upper chamber and a lower ch...
09/20/1983
4404987Cap nut for a trip cock device including a detent arrangement for overriding automatic reset
A trip cock device including a pilot valve actuable by a trip lever, when the train on which the trip cock is mounted passes over a trip arm secured to the track, for causing a release valve in the trip cock to be opened and opening brake pipe pressure to...
09/20/1983
4268004Self-releasing hose clamp
A self-releasing clamp for a fluid carrying hose comprises an inclined guide and a roller carried by the guide which is movable along the guide between a hose releasing position and a hose clamping position. There is a hose support for holding the hose ag...
05/19/1981
4245813Flush valve
A flush valve including a housing, a removable partition sealingly engaging said housing and defining a primary chamber and a control chamber; the housing including an inlet port in the primary chamber for connection with a source of flushing fluid, and a...
01/20/1981
4231542Automatically resetting flush valve
In a flush valve having a housing, a moveable partition sealing engaging the housing, and defining a primary chamber and a control chamber; an inlet port in the primary chamber and an outlet port in the primary chamber; and a valve element connected with ...
11/04/1980
 
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