US 8,297,953 B2Granted

Mini pump

OwnerScott Wuinventor

Life of this patent

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Abstract

A mini pump has a head including a connective end, a nozzle and an air channel communicating the connective end with the nozzle. A cylinder assembly is removably engaged with the connective end of the head. A tube is selectively received in the cylinder assembly and has an end connected to the connective end. The head is locked to the cylinder assembly and the tube is concealed in the cylinder assembly when the head is in a first position. The head is disengaged from the cylinder assembly and the tube extends out of the cylinder assembly when the head is in a second position.

Claims9

Dependent claims

A mini pump comprising:

a head including a connective end, a nozzle, an air channel communicating the connective end with the nozzle, and a handling end switchable between a removal position and a gripping position, with switching of the handling end allowing gripping or removal of things to be inflated by the nozzle;
an outer cylinder;
an inner cylinder;
a handle cylinder unit, with the inner cylinder having a first end and a second end, with the second end of the inner cylinder including a piston, with the outer cylinder reciprocally mounted on the inner cylinder, with the piston received in the outer cylinder, with the handle cylinder unit engaged with the first end of the inner cylinder, with the first and second ends of the inner cylinder being intermediate the piston and the head;
a tube received in the inner cylinder and the handle cylinder unit, with the tube being resilient, with the tube having a first end connected to the connective end and a second end slideably received in the inner cylinder with a sealed relationship;
and
means for locking the head to the handle cylinder unit in a first position preventing the head from detaching from the handle cylinder unit and preventing the head from rotating with respect the handle cylinder unit, with the tube concealed in the inner cylinder and the handle cylinder unit with the second end of the tube in the sealed relationship with the inner cylinder and the outer cylinder reciprocable relative to the inner cylinder when the head is in the first position;
wherein the head is disengaged from the handle cylinder unit and the tube extends out of the inner cylinder and the handle cylinder unit with the second end of the tube in the sealed relationship with the inner cylinder when the head is in a second position, with the outer cylinder reciprocable relative to the inner cylinder when the head is in the second position;
wherein the handling end is switchable between the removal and gripping positions in the first position and also in the second position of the head;
and
wherein the mini pump has two use modes for inflating objects, with the head in the first position and the handling end switchable to control the nozzle for allowing removal or grip of said things to be inflated when the mini pump is in a first use mode, with the head in the second position and the handling end switchable to control the nozzle for allowing removal or grip of said things to be inflated when the mini pump is in a second use mode.

8 more elements

Dependencies are inferred from the claim text.

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Abstract

A mini pump comprising:

a head including a connective end, a nozzle, an air channel communicating the connective end with the nozzle, and a handling end switchable between a removal position and a gripping position, with switching of the handling end allowing gripping or removal of things to be inflated by the nozzle;
an outer cylinder;
an inner cylinder;
a handle cylinder unit, with the inner cylinder having a first end and a second end, with the second end of the inner cylinder including a piston, with the outer cylinder reciprocally mounted on the inner cylinder, with the piston received in the outer cylinder, with the handle cylinder unit engaged with the first end of the inner cylinder, with the first and second ends of the inner cylinder being intermediate the piston and the head;
a tube received in the inner cylinder and the handle cylinder unit, with the tube being resilient, with the tube having a first end connected to the connective end and a second end slideably received in the inner cylinder with a sealed relationship;
and
means for locking the head to the handle cylinder unit in a first position preventing the head from detaching from the handle cylinder unit and preventing the head from rotating with respect the handle cylinder unit, with the tube concealed in the inner cylinder and the handle cylinder unit with the second end of the tube in the sealed relationship with the inner cylinder and the outer cylinder reciprocable relative to the inner cylinder when the head is in the first position;
wherein the head is disengaged from the handle cylinder unit and the tube extends out of the inner cylinder and the handle cylinder unit with the second end of the tube in the sealed relationship with the inner cylinder when the head is in a second position, with the outer cylinder reciprocable relative to the inner cylinder when the head is in the second position;
wherein the handling end is switchable between the removal and gripping positions in the first position and also in the second position of the head;
and
wherein the mini pump has two use modes for inflating objects, with the head in the first position and the handling end switchable to control the nozzle for allowing removal or grip of said things to be inflated when the mini pump is in a first use mode, with the head in the second position and the handling end switchable to control the nozzle for allowing removal or grip of said things to be inflated when the mini pump is in a second use mode.

8 more elements