Key with indicator
OwnerHarold St. Felixinventor
Life of this patent
Estimating the term…
Abstract
The key with a lock-unlock indicator is operable with a complementary lock set. The key has a body and an elongated key stem extending therefrom. A toggle bar is pivotally mounted or disposed on the key stem. The toggle bar operates in conjunction with a lock cam and an unlock cam mounted on the face of the complementary lock set. When the operator turns the key in one direction, the lock cam motivates the toggle bar thereby shifting its position. An indicator disposed in the key body displaying a lock condition and an unlock condition.
Claims16
A key with a lock-unlock indicator, said key operable with a complementary lock set comprising:
- a key having a body and an elongated key stem longitudinally extending from said key body;
- a toggle bar pivotally disposed on said key stem;
- an indicator disposed in said key body, said indicator displaying a locked condition and an unlocked condition;
- means for operatively coupling said toggle bar with said indicator;
- and
- a lock cam and an unlock cam mounted on said complementary lock set such that upon insertion of said key stem into said lock set and rotation of said key therein, one or the other of said lock cam and unlock cam motivates said toggle thereby changing said indicator displaying the corresponding locked condition and unlocked condition;
- wherein said means for operatively coupling is a mechanical chain, belt or linkage coupling said toggle bar and said indicator.
A key with a lock-unlock indicator, said key operable with a complementary lock set comprising:
- a key having a body and an elongated key stem longitudinally extending from said key body;
- a toggle bar pivotally disposed on said key stem;
- an indicator disposed in said key body, said indicator displaying a locked condition and an unlocked condition;
- means for operatively coupling said toggle bar with said indicator;
- and
- a lock cam and an unlock cam mounted on said complementary lock set such that upon insertion of said key stem into said lock set and rotation of said key therein, one or the other of said lock cam and unlock cam motivates said toggle thereby changing said indicator displaying the corresponding locked condition and unlocked condition;
- wherein said indicator includes a battery powered display and said means for operatively coupling includes a switch and an electrical coupling between said switch and said display.
Dependencies are inferred from the claim text.