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US 2002/0117196 A1Published application
Retractable upright pole for a camping tent
OwnerJan-Long Haninventor
Life of this patent
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Abstract
A retractable upright pole for a tent has multiple tubes receivable in one another and each tube having a ball-spring combination and multiple bores defined to correspond to the ball-spring combination of another tube to secure the connection between two adjacent tubes. The upright pole further has a chain-spring combination inside the tube to be in combination with the ball-spring combination to secure the connection between two adjacent tubes.
Claims4
A retractable upright pole for a tent, the upright pole comprising:
- multiple tubes of different sizes and sequentially receivable in one another and each tube having a neck in one end, an open end in the other end, multiple bores defined in a periphery of the tube and a ball-spring combination securely provided inside the tube, the ball-spring combination being able to extend to a corresponding one of the bores of another tube to secure the connection between the neck and the open end of two adjacent tubes of different sizes.
A retractable upright pole for a tent, the upright pole comprising:
- multiple tubes of different sizes and each tube having a neck in one end, an open end in the other end, multiple bores defined in a periphery of the tube and a chain-spring combination securely provided inside the tube, the chain-spring combination being able to secure the connection between the neck and the open end of two adjacent tubes of different sizes.
Dependencies are inferred from the claim text.