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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 92/38 - Non-working liquid moved by first bellows effects movement of second bellows


Subclass of Class 92 - Expansible chamber devices
Definition: Apparatus in which the plural bellows expansible chambers
No. of patents: 11
Last issue date: 02/08/2000


NumberTitleIssue Date
6021849Double acting gas displaced chamber lift system and method
A double acting artificial lift system for use in a wellbore having two chambers, each having an inlet and outlet; a power gas string connected to both chambers; a liquid string connected to the outlets of both chambers; a vent connected to each chamber f...
02/08/2000
5431015Flexible bellows actuation system
A closed loop fully self-contained actuation system for converting a mechanical input motion into a mechanical output motion, which actuates a device such as a flight control surface on an aircraft, comprises an input actuator including a first fluid pres...
07/11/1995
5287700Flexible bellows actuation system
A closed loop fully self-contained actuation system for converting a mechanical input motion into a mechanical output motion, which actuates a device such as a flight control surface on an aircraft, comprises an input actuator including a first fluid pres...
02/22/1994
4870821Reciprocation apparatus with sealing mechanism
In a sealing mechanism for a reciprocation apparatus for use in a cycle engine having a reciprocation member (108), such as Stirling engine, oil or a fluid is enclosed in a fluid room constituted by a pair of flexible partioning members (112, 113) such as...
10/03/1989
4858439Device for varying a stroke
A stroke variable device comprising a large diameter cylinder and a small diameter cylinder which are interconnected to each other. A large diameter piston and a small diameter piston are slidably inserted into the large diameter cylinder and the small di...
08/22/1989
4840205Method and apparatus for dispensing liquids
A machine for dispensing liquids, especially for filling cartons at a higher rate of speed, is disclosed. The machine includes three bellows arranged in vertical alignment, with upper and lower sleeves interposed between the bellows. The discharge nozzle ...
06/20/1989
4769992Reciprocation apparatus with sealing mechanism
In a sealing mechanism for a reciprocation apparatus for use in a reciprocating engine having a reciprocation member (108), such as Stirling engine, oil or a fluid is enclosed in a fluid room constituted by a pair of flexible partioning members (112,113) ...
09/13/1988
4712780Hydropneumatic spring suspension device
The invention relates to a hydropneumatic spring suspension or shock absorber device, in particular for heavy motor vehicles, which a spring element comprising a housing for a spring bellows filled with a hydraulic medium which is in flow connection with ...
12/15/1987
4247078Overrange valve or the like
A differential pressure unit having overrange valves loosely mounted on a valve stem connected between the ends of a respective pair of movable bellows ends. A pair of spiral range springs bias both valves toward open positions. The valves include annular...
01/27/1981
4170166Air motor with expansible chamber
Air motor having a crankcase about which a plurality of expansible chambers are arranged so that a crankshaft journaled within the crankcase can be connected to a bellows of the expansible chamber by a rod assembly. The crankshaft moves a cam means which ...
10/09/1979
3946176Differential pressure switch
A differential pressure module is secured in switching relation to the actuating plunger of an electrical switching mechanism. Comprising the differential pressure module are two piston/cylinder assemblies connected together in back-to-back configuration ...
03/23/1976
 
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