Pump Having Edge Mounted O-Ring Seal
AssigneeQ.E.D. Environmental Systems, Inc.
InventorDouglas D. COLBY
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a fluid pump having a pump housing and an inlet wall portion positioned adjacent the pump housing. The inlet wall portion has an extending portion which extends generally parallel to an inner surface of the pump housing. A motor is housed within the pump housing. An impeller is included which is responsive to the motor. An impeller retainer is disposed adjacent the impeller and includes a radiused corner portion. An O-ring is positioned at the radiused corner portion. The O-ring exerts a force non-perpendicular to the inner surface of the pump housing to form a seal against the inner surface of the pump housing and the extending portion of the inlet wall portion.
Claims15
A fluid pump comprising:
- a pump housing;
- an inlet wall portion positioned adjacent the pump housing and including an extending portion extending generally parallel to an inner surface of the pump housing;
- a motor housed within the pump housing;
- an impeller responsive to the motor;
- an impeller retainer disposed adjacent the impeller and including a radiused corner portion;
- an O-ring positioned at the radiused corner portion;
- and
- the O-ring exerting a force non-perpendicular to the inner surface of the pump housing to form a seal against the inner surface of the pump housing and the extending portion of the inlet wall portion.
A fluid pump comprising:
- a pump housing;
- an inlet wall portion positioned adjacent the pump housing and including an extending portion extending generally parallel to an inner surface of the pump housing;
- a motor housed within the pump housing;
- an impeller responsive to the motor;
- an impeller housing positioned within the pump housing for housing the impeller, the impeller housing including a leg portion projecting therefrom;
- an impeller retainer disposed adjacent the impeller and including a radiused corner portion;
- and
- an O-ring positioned at the radiused corner portion, the O-ring having a radius approximately the same as a radius of the radiused corner portion;
- and
- the O-ring exerting a force non-perpendicular to the inner surface of the pump housing to form a seal against the inner surface of the pump housing.
A fluid pump comprising:
- a pump housing;
- an inlet wall portion positioned adjacent the pump housing and including an extending portion extending generally parallel to an inner surface of the pump housing;
- a motor housed within the pump housing;
- an impeller responsive to the motor;
- an impeller housing positioned within the pump housing for housing the impeller, the impeller housing including a leg portion projecting therefrom parallel to and adjacent to the inner surface of the pump housing;
- an impeller retainer disposed adjacent the impeller and including a radiused corner portion;
- and
- an O-ring positioned at the radiused corner portion, the O-ring having a radius approximately the same as a radius of the radiused corner portion;
- and
- the O-ring exerting a force at about a 45 degree angle relative to the inner surface of the pump housing to form a seal against the inner surface of the pump housing.
Dependencies are inferred from the claim text.