Pump with detachable pressure gauge
OwnerScott Wuinventor
Life of this patent
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Abstract
A pump includes a cylinder, a piston, a rod, a handle, a nozzle and a pressure gauge. The piston is received in a space extending through the cylinder. To pump, the piston is reciprocated in the cylinder. The rod is connected with the piston so that the piston is moved via operating the rod. The handle is connected with the rod for facilitating the operation of the rod. The nozzle is in communication with the cylinder. A pressure gauge can be engaged with and disengaged from the nozzle. A flow control unit is in communication with the nozzle for detachable engagement with the pressure gauge. The flow control unit provides an open position when engaged with the pressure gauge and a closed position when disengaged from the pressure gauge.
Claims20
A pump including a cylinder, a piston movably received in the cylinder, a rod linked to the piston, a nozzle in communication with the cylinder, a flow control unit in communication with the cylinder and the nozzle, and a pressure gauge for engagement with the flow control unit, the flow control unit providing an open position when engaged with the pressure gauge and a closed position when removed from the pressure gauge, with the flow control unit including an internal face defining a channel, with the flow control unit further including a body movably received in the channel, with the flow control unit further including an annular seal mounted on the body for abutment against the channel, with the flow control unit further including a spring mounted on the body, with the spring compressed between the body and the channel on an opposite side of the annular seal than a side of the annular seal abutting the channel and thus tending to drive the annular seal into abutment against the channel, with the body being driven to disengageably abut the annular seal with the channel.
A pump including a cylinder, a piston movably received in the cylinder, a rod linked to the piston, a nozzle in communication with the cylinder, a flow control unit in communication with the cylinder and the nozzle, and a pressure gauge for engagement with the flow control unit, the flow control unit providing an open position when engaged with the pressure gauge and a closed position when removed from the pressure gauge, wherein the flow control unit includes:
- a housing including a channel defined therein and an annular ridge formed on an internal face, the housing being received in a space in communication with the cylinder and the nozzle;
- a body including an annular flange formed thereon for abutment against a side of the annular ridge, the body being movably received in the channel;
- a spring mounted on the body;
- and
- a cap mounted on the body so that the spring is compressed between the cap and an opposite side of the annular ridge, thus tending to drive the annular flange into abutment against the annular ridge.
Dependencies are inferred from the claim text.