Patents Assigned to Charles Austin Pumps Ltd.
  • Rotary pump having a reinforced flexible annular diaphragm
    Patent number: 5988998
    Abstract: A rotary diaphragm fluid pump includes a rigid tubular body with internal annular groove, a tubular flexible diaphragm whose central portion is caused to orbit by an eccentrically driven bearing. Preferably the diaphragm is a moulding which features an elastic fixed abutment between the inlet and outlet ports, and internal reinforcement to ensure that the full diaphragm stroke is achieved. Two such pumps may compliment each other to produce a pulsation free output.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 23, 1999
    Assignee: Charles Austin Pumps Ltd.
    Inventor: Brian Howard Glover