Retractable pet leash with self powered electric light
First Claim
1. A retractable pet leash with a self powered electric light comprising:
- a housing, having a handle and an opening;
a leash cord, having a first end and a second end;
a reel assembly;
a generator assembly; and
a lamp;
said reel assembly comprising a spool rotatably mounted inside said housing, and a spring;
said leash cord being coiled on said spool for paying out through said opening, by rotating said spool in a first direction;
said first end of said leash cord being anchored to said spool and said second end of said leash cord being disposed outside said housing;
said spring being mounted inside said housing and being configured to bias said spool toward rotation opposite said first direction, for retracting said cord onto said spool;
said generator assembly being mounted inside said housing and comprising an electric generator, mechanical transmission means operably connecting said reel assembly to said generator and a circuit board;
said generator having an electric power output electrically connected to said circuit board;
said circuit board having electrical power storage means and electric filtering means for outputting a stable power supply;
said lamp being mounted on said housing and having electrical connection means for receiving said power supply;
whereby a user may attach a collar worn by a pet to the second end of said leash cord, grasp said handle to control said pet, and repeatedly extend and retract said cord to generate electricity for illuminating said lamp, to provide light.
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Accused Products
Abstract
A retractable pet leash having an integrated lamp powered by an electric generator. A spool is rotatably mounted inside a housing and a leash cord is coiled on the spool. The spool rotates in a first direction of rotation as the leash cord pays out through an opening provided in the housing. A spring inside the housing is configured to bias the spool toward rotation opposite the first direction of rotation, for retracting the leash cord. A circular toothed gear is attached to the spool for synchronous rotation and a set of speed change gears are configured to translate rotation of the circular toothed gear to turn the generator. A cup gear, having an inner wall provided with a unidirectional teeth groove, engages a speed change gear. A prism plate with pivotally mounted pawls is rotatably mounted in contact with the unidirectional teeth groove, for translating rotation in one direction only, to the generator. The generator outputs direct current to a circuit board. The circuit board includes a set of capacitors for storing electric potential and an electric filter for outputting a stable power supply to energize the lamp.
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Citations
8 Claims
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1. A retractable pet leash with a self powered electric light comprising:
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a housing, having a handle and an opening; a leash cord, having a first end and a second end; a reel assembly; a generator assembly; and a lamp; said reel assembly comprising a spool rotatably mounted inside said housing, and a spring; said leash cord being coiled on said spool for paying out through said opening, by rotating said spool in a first direction; said first end of said leash cord being anchored to said spool and said second end of said leash cord being disposed outside said housing; said spring being mounted inside said housing and being configured to bias said spool toward rotation opposite said first direction, for retracting said cord onto said spool; said generator assembly being mounted inside said housing and comprising an electric generator, mechanical transmission means operably connecting said reel assembly to said generator and a circuit board; said generator having an electric power output electrically connected to said circuit board; said circuit board having electrical power storage means and electric filtering means for outputting a stable power supply; said lamp being mounted on said housing and having electrical connection means for receiving said power supply; whereby a user may attach a collar worn by a pet to the second end of said leash cord, grasp said handle to control said pet, and repeatedly extend and retract said cord to generate electricity for illuminating said lamp, to provide light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification