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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 417/144 - Correlated motive fluid valve and pressure or vacuum generating means


Subclass of Class 417 - Pumps
Definition: Apparatus in which said means for effecting the admission
No. of patents: 6
Last issue date: 05/22/2001


NumberTitleIssue Date
6234761Apparatus for an air lift and transfer pump
A pump having a pump chamber arranged to receive liquid to be pumped and air, a delivery pipe for delivery of the liquid by the air to a location remote from said pump chamber, an air pipe for flow of air therein. The delivery pipe and pump chamber are in...
05/22/2001
5911278Calliope oil production system
A novel apparatus and method for producing oil and natural gas from an oil well in the later stages of the well's lifetime. The apparatus includes a one-way valve located at the bottom of the conventional production tubing and a string of macaroni tubing ...
06/15/1999
5186611Pump arrangement for pumping liquid by means of compressed air
A pump arrangement that has a pump chamber with an inlet opening and a discharge opening. A discharge pipe is connected to the outlet opening to carry liquid, etc., from the pump chamber. An inlet pipe is connected to the inlet opening and extends downwar...
02/16/1993
5002463Apparatus and method for flow control
The invention provides an apparatus and method for handling a solid/liquid mixture, for example for conveying fish immersed in a fish/water mixture. The apparatus has a receiving chamber to receive the mixture through an inlet valve thereof when the chamb...
03/26/1991
4945955Hazardous waste removal devices
An apparatus for transferring toxic waste liquid directly into a 55 gallon waste drum includes a mobile drum cradle that lifts the drum so it can be moved to a container presently holding the toxic liquid. A vacuum is produced in a transfer reservoir, and...
08/07/1990
4184506Vacuum sewer system
A vacuum sewer system, comprising a number of sewage feeding devices connected to a sewer pipe system under partial vacuum. The arrangement further comprises a self-discharging sewage collecting container to which the suction duct of a vacuum pump has bee...
01/22/1980
 
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