Patent ID: 6250343
Filing Date: 2001-06-26
Classification: F04B

Abstract:
An inflating cylinder with both inflating and air suction effects, comprising:a cylinder body defining therein an air chamber;a piston disposed in the air chamber of the cylinder body and airtightly engaged with an inner wall of the air chamber, a compression room being defined between the piston and a first end of the cylinder body;a piston stem extended through a second end of the cylinder body and a first end of the piston stem connected with the piston for driving the piston to slide, a second end of the piston stem being positioned outside the cylinder body to be gripped by a user;a first one-way valve disposed at the first end of the cylinder body and communicating with the compression room, whereby the air can only flow from the interior of the cylinder body to outside the cylinder body;a second one-way valve disposed at the first end of the cylinder body and communicating with the compression room, whereby the air can only flow from outside the cylinder body into the cylinder body; andat least one air guiding member formed with an axial air way for air to flow therethrough, the air guiding member being detachably connected with the first end of the cylinder body and communicating with one of the first and second one-way valves, whereby when the air guiding member communicates with the first one-way valve, the inflating cylinder creates an inflating effect and when the air guiding member communicates with the second one-way valve, the inflating cylinder creates an air suction effect.