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US 10,945,498 B2Granted
Device with a assisted opening and closing mechanism
OwnerPaul Derrick Williamsinventor
Life of this patent
Estimating the term…
Abstract
Embodiments, alternatives and variations of a device with a assisted opening and closing mechanism for the opening and closing of at least one shaft. Finger rings and other items is configured with components to conveniently, easily and quickly open and close at least one shaft with at least one tensioning mechanism. Other uses of said devices comprise use as a knife, as a tool, a way of relaxation, for therapeutic use, for educational use, as a toy, for self defence, and for entertainment purposes.
Claims19
A wearable device comprising:
- a chamber with a front end and a back end, the chamber having a shaft-receiving space and an opening into the space through the front end, and an opening into the space through the back end, and;
- a shaft, longitudinally slidable in the chamber between a closed position in which the shaft is received in the chamber and an open position in which the shaft extends through said opening at the front end, a portion of the shaft when in the open position, remains within the chamber, and;
- a first spring longitudinally movable within the chamber and configured adjacent to the back portion of the shaft and a second spring longitudinally movable within the chamber and configured adjacent to the front portion of the shaft, and;
- a switch mechanism operable when the shaft is in the locked closed position to simultaneously compress the first spring and unlock the shaft to thereby drive the shaft from the locked closed position to the locked open position, and when the shaft is in the locked open position to simultaneously compress the second spring and unlock the shaft to thereby drive the shaft from the locked open position to the locked closed position.
1 more element
A wearable device comprising:
- a chamber with a front end and a back end, the chamber having a substantially cylindrical shaft-receiving space and an opening into the space through the front end, and an opening into the space through the back end, and;
- a substantially cylindrical shaft narrower at the front portion and wider at the back portion, longitudinally slidable in the chamber between a closed position in which the shaft is received in the chamber and an open position in which the shaft extends through said opening at the front end, a portion of the shaft when in the open position, remains within the chamber, the shaft comprises a cavity, an internal bore, a piston and a spring, and;
- a first spring longitudinally movable within the chamber and configured adjacent to the back portion of the shaft and a second spring longitudinally movable within the chamber and configured adjacent to the narrower front portion of the shaft, and;
- a switch mechanism operable when the shaft is in the locked closed position to simultaneously compress the first spring and unlock the shaft to thereby drive the shaft from the closed position to the locked open position, and when the shaft is in the locked open position to simultaneously compress the second spring and unlock the shaft to thereby drive the shaft from the locked open position to the locked closed position.
1 more element
Dependencies are inferred from the claim text.