Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Single-acting, gas-operated pump










Image Number 3 for United States Patent #4828465.

A single-acting, gas-operated, pump method and apparatus including a pump body having a main chamber divided by a reciprocating piston assembly into a gas driving chamber and a liquid pumping chamber, a spring for biasing the piston assembly into one of its two end positions, a reciprocating control valve controlling the flow of driving gas to and from the gas driving chamber, a snap-acting spring mechanically coupling the control valve to the reciprocating movement of the piston assembly, and a counteracting spring for biasing the control valve toward one of its two positions.








 
 
  Recently Added Patents
Pandemic protocol for emergency dispatch
Method for producing SOI substrate and SOI substrate
Injection molding method and injection molding machine
Check weigher comprising of a rotating weighing chute with an accumulating and a discharge position that calculates flow rate by measuring weight accumulated during a predetermined time interv
Solar energy converter with improved photovoltaic efficiency, frequency conversion and thermal management permitting super highly concentrated collection
Calibration method for non-ideal transceivers
Method and apparatus for detecting an intermittent path to a storage system
  Randomly Featured Patents
Method, mobile station and base station for frequency synchronization of a mobile station in a radio communications system
Clock radio system with remote alert device
Blade position detection apparatus
Training-free generic object detection in 2-D and 3-D using locally adaptive regression kernels
Semiconductor device
Finger patch with adhesive backing
Molded composite article, process for producing the same, and a joinable resin
Memory errors
Methods and apparatus to improve efficiency in cold cathode fluorescent light controllers
Pain management methods and apparatus