Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Tire inflation
Reexamination Certificate
2000-06-13
2001-08-21
Douglas, Steven O. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Tire inflation
C141S383000, C152S415000
Reexamination Certificate
active
06276405
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to an inflation device, and more particularly to a nozzle of the inflation device, which is provided with means to adjust the nozzle automatically to engage the air valves of different types.
BACKGROUND OF THE INVENTION
The bicycle tires are provided with an air valve of the U.S. type or French type. The conventional bicycle air pump is not compatible with the air valves of both the U.S. type and the French type. However, the modem bicycle air pump comprises a nozzle which is provided with two connection heads engageable with the air valve of the U.S. type and the air valve of the French type. The selection of the connection heads is done manually, thereby discouraging the people to use the modem bicycle air pump as described above.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an inflation device with an inflation nozzle which is compatible with the air valves of the U.S. type and the French type and is easy to use.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by the inflation nozzle comprising a housing with a receiving cell which has an open end and an engagement port. The receiving cell contains a first elastic annular block which is provided with a through hole opposite to the engagement port. A seat block is movably disposed in the receiving cell such that the seat block urges the first elastic annular block. The seat block is provided with a through hole opposite to the through hole of the first elastic annular block, and a space in which a rotary member is pivoted. The rotary member has a main portion, a curved portion extending from the main portion, and a notch formed between the main portion and the curved portion. The main portion is provided with a retaining portion for retaining the seat block at an angle at such time when the rotary member turns in the direction toward the opening of the notch. The curved portion and the notch face the engagement port such that one end of the curved portion is substantially located on the center line of the through hole of the first elastic annular block. The rotary member is guided by a recovery elastic member which is disposed between the seat block and the rotary member. The receiving cell is further provided with a second elastic annular block which is provided with a through hole opposite to the through hole of the seat block and smaller in diameter than the through hole of the first elastic annular block. The open end of the receiving cell is provided with a press block capable of moving along the longitudinal direction of the receiving cell and having an air guiding hole extending from the outer periphery of the press block to a portion which is corresponding in location to the through hole of the second elastic annular block. A handle is fastened pivotally to the housing in such a manner that the handle is corresponding in location to the open end of the receiving cell so as to push the press block to press against the seat block.
REFERENCES:
patent: 4091999 (1978-05-01), Voos
patent: 5307846 (1994-05-01), Heinemann
patent: 5472031 (1995-12-01), Austin
patent: 5522910 (1996-06-01), Fogal, Sr.
Browdy and Neimark
Douglas Steven O.
LandOfFree
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