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US 5,967,684 AGranted
Pen with push-button
OwnerKuang-Yen Huang, Tsung-Yi Yanginventors
Life of this patent
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Abstract
A pen with push button is a pen which has a button on its barrel to control the exposure or closure of its pen point. When the button is pressed down by a finger, a thimble will retract to expose the pen point; when it is released, the thimble will close the pen point. The pen has an extending and retracting mechanism composed of a thimble, a button, and a spring.
Claims3
A pen with push button comprising a case, an extending and retracting mechanism, an ink cartridge wherein the case is a hollow barrel with a penetrated push-button hole on its side, having an outlet at its lower end, a pair of shaft holes in its inner wall;
- the extending and retracting mechanism composed of a button, a thimble, and a spring, the button tends to be a sway rod having a pair of shafts under its lower end and its other end used as a contact point;
- the thimble is a hollow tube body, having a taper tube neck at its one end and having a slant wedge at the other end;
- the button is mounted in the thimble and its shaft are pivoted in the push-button hole in the barrel, the contact point on the other end can hold out against the slant wedge on the thimble;
- the ink cartridge is disposed at the center of the case, the ink cartridge is sleeved into the extending and retracting mechanism wherein a portion of the button protrudes through the push-button hole, the lower end of the thimble and the pen point of the ink cartridge protrude through the outlet of the case, the other end of the thimble is pushed by the spring to sleeve the pen point when the button is released;
- the thimble is retracted by pushing down the button to expose the pen point and be ready for use.
2 more elements
Dependencies are inferred from the claim text.