Gas cylinder
AssigneeSamhongsa Co., Ltd.
InventorYong A. Park
Life of this patent
Estimating the term…
Abstract
A gas cylinder includes: a base tube including a cavity; a spindle inserted into the cavity and performing a reciprocating motion in a longitudinal direction of the base tube; a cylinder mounted in the spindle and charged with gas; a piston dividing the cylinder into an upper chamber and a lower chamber; a valve portion sealing an upper portion of the cylinder and including a pipe holder having a cavity through which the gas is introduced; a flow prevention portion inserted into the spindle and having an inner surface contacting a surface of the spindle; and a spindle guide disposed between the base tube and the spindle and mounted to include at least a portion of the flow prevention portion.
Claims11
A gas cylinder comprising:
- a base tube comprising a cavity;
- a spindle inserted into the cavity and performing a reciprocating motion in a longitudinal direction of the base tube;
- a cylinder mounted in the spindle and charged with gas;
- a piston dividing the cylinder into an upper chamber and a lower chamber;
- a valve portion sealing an upper portion of the cylinder and comprising a pipe holder having a cavity through which the gas is introduced;
- a flow prevention portion inserted into the spindle and having an inner surface contacting a surface of the spindle;
- and
- a spindle guide disposed between the base tube and the spindle and mounted to comprise at least a portion of the flow prevention portion;
- wherein:
- the spindle guide comprises a first mounting portion formed along an inner surface of the spindle guide in a circumferential direction, and a first stopper bump protruding from an inner side wall toward the spindle;
- an inner circumferential surface of the flow prevention portion contacts the surface of the spindle, while an outer circumferential surface of the flow prevention portion is spaced apart from the inner side wall of the spindle guide;
- and
- the flow prevention portion moves between a bottom surface of the first mounting portion and the first stopper bump when the spindle reciprocates in a longitudinal direction of the base tube.
A gas cylinder comprising:
- a base tube comprising a cavity;
- a spindle inserted into the cavity and performing a reciprocating motion in a longitudinal direction of the base tube;
- a cylinder mounted in the spindle and charged with gas;
- a piston dividing the cylinder into an upper chamber and a lower chamber;
- a valve portion sealing an upper portion of the cylinder and comprising a pipe holder having a cavity through which the gas is introduced;
- a flow prevention portion inserted into the spindle and having an inner surface contacting a surface of the spindle;
- a spindle guide disposed between the base tube and the spindle and into which the flow prevention portion is inserted;
- and
- a cover inserted into the spindle guide and mounted to cover at least an area of an upper portion of the flow prevention portion;
- wherein:
- the cover comprises a side wall inserted into a second mounting portion, and a second stopper bump protruding from the side wall toward the spindle;
- the second mounting portion is formed along an inner surface of the spindle guide in a circumferential direction;
- an inner circumferential surface of the flow prevention portion contacts the surface of the spindle, while an outer circumferential surface of the flow prevention portion is spaced apart from the side wall of the cover;
- and
- the flow prevention portion moves between a bottom surface of the second mounting portion and the second stopper bump when the spindle reciprocates in a longitudinal direction of the base.
Dependencies are inferred from the claim text.