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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 92/252 - Three or more elements


Subclass of Class 92 - Expansible chamber devices
Definition: Apparatus in which the pliable nonmetallic portion comprises
No. of patents: 7
Last issue date: 09/25/2001


NumberTitleIssue Date
6293764Reciprocating compressor with dry lubricating system
The compressor contains at least one piston (5) guided in a dry-running manner which, together with a cylinder insert (33), bounds a ring gap which is open over the common longitudinal section in each case and permits a leakage flow of the compressed medi...
09/25/2001
5934175Cylindrical working member and system employing same
An improved cylindrical working member and associated system comprising a simple cylindrical sleeve having an outer surface with two spaced grooves surrounding a cylindrical land. At the other end, a single groove is formed. A "SANDWICH" consisting of a s...
08/10/1999
5490445Ultra low device volume piston system
A piston and ring assembly operative within a cylindrical bore wall to retain pressurized fluid to one side of the assembly, the piston having a crown and an annular side wall for movement along the bore wall. The assembly comprises a piston having at lea...
02/13/1996
4739695Fluid-pressure-operable actuator systems
A fluid-pressure-operable actuator system, for operating an aerodynamic control surface, including an actuator comprising a casing, piston and output member. Annular sealing means carried by the piston sealingly engages with the casing while annular seali...
04/26/1988
4270440High pressure piston and seal
In a pump having a cylinder liner, there is a piston therein, a seal around the piston and rear wearband around the piston body to align the piston within the liner. An elastomeric seal ring is in sealing and sliding contact with the liner. A gap filler, ...
06/02/1981
4248299Packer nose assembly
A packer nose assembly for pumping downhole equipment of the free type into and out of boreholes. The assembly includes a mandrel having a lower end portion attachable to the downhole equipment and an upper end portion terminating in the form of a fishing...
02/03/1981
3971298Piston assembly with compression and guiding rings
A piston assembly adapted for use in nonlubricated high pressure compressors, comprising a piston having a plurality of peripheral grooves therein with a ring assembly in each groove constituted of one seal ring and one guide ring in a common groove. The ...
07/27/1976
 
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