Fluid handling – Inflatable article
Reexamination Certificate
2000-04-24
2001-09-18
Buiz, Michael Powell (Department: 3753)
Fluid handling
Inflatable article
C137S231000, C251S065000
Reexamination Certificate
active
06289920
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to an air pump, and more particularly to an air pump nozzle capable of adjusting automatically to fit the inflation valves of various types.
BACKGROUND OF THE INVENTION
The bicycle tire is provided with an inflation valve of the U.S. type or French type. The conventional air pump nozzle is generally not compatible with the inflation valves of both types. However, there are currently certain conventional air pump nozzles which are compatible with the inflation valves of the U.S. type and the French type. The operation of such conventional air pump nozzles involves the switching action which complicates the use of the air pumps.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an air pump with a nozzle capable of adjusting automatically to fit an inflation valve of the U.S. type or French type.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by an air pump nozzle comprising a housing, an elastic holding member, a pressing member, a first attracting member, a valve urging rod, a pushing member, an elastic recovery member, and a handle. The housing has a receiving compartment which is provided with an open end and is provided at other end thereof with a holding mouth in communication with the atmospheric air. The receiving compartment is provided in the wall thereof with an air inlet. The elastic holding member is disposed in the receiving compartment such that the elastic holding member is corresponding in location to one end of the holding mouth. The elastic holding member has a large diametrical hole and a small diametrical hole extending from the inner end of the large diametrical hole, The press member is disposed in the receiving compartment of the housing such that the inner end of the press member urges the elastic holding member. The press member is provided with a receiving hole and at least one ventilation hole extending from the outer periphery thereof to communicate with the receiving hole. The receiving hole is provided in the wall thereof with a guide slope. The first attraction member is disposed in the proximity of the inner end of the press member. The valve urging rod is movably disposed in the receiving hole of the press member and is provided with a second attraction member. The pushing member is movably disposed in the receiving hole of the press member and is provided with a receiving space in which the valve urging rod is received. The receiving space is provided in the wall thereof with a plurality of pliable arms capable of bending along the guide slope at such time when the pushing member is located at the innermost end. The valve urging rod is thus confined by the pliable arms. The recovery member is disposed in the receiving hole such that one end of the recovery member urges the press member, and that other end of the recovery member urges the pushing member. The handle is pivoted to the housing to turn from a standby position to an operation position so as to cause the pushing member to displace a distance.
REFERENCES:
patent: 4819686 (1989-04-01), Achterholt
patent: 5379796 (1995-01-01), Wang
patent: 5666990 (1997-09-01), Wu
patent: 5749392 (1998-05-01), Glotin
patent: 5829492 (1998-11-01), Gavronsky et al.
patent: 5902097 (1999-05-01), Wu
patent: 5960815 (1999-10-01), Wang
patent: 6076544 (2000-06-01), Pierce
Browdy and Neimark PLLC
Buiz Michael Powell
Schoenfeld Meredith H.
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