Power operated tape measure
OwnerScott Pulleninventor
Life of this patent
Estimating the term…
Abstract
A hand-held measuring device including a case and flexible steel spring-biased measuring tape wound about an annular reel fitted within a circular housing within the case, a single battery-powered motor having an output shaft, a driving wheel fixedly mounted on the output shaft of the motor for directly engaging the surface of the tape and thereby pushing the tape out of the case, a first switch mounted on the case for controlling the motor, a pull rod connected to the drive wheel, and a second switch mounted on the case and connected to the pull rod for disengaging the driving wheel from the tape surface.
Claims5
A power operated tape measure comprising:
- a case having a battery chamber and a circular chamber;
- a motor mounted within said case and having an output shaft;
- a first switch mounted on said case and electrically connected with the battery chamber of said case for controlling said motor;
- an annular reel fitted within the circular chamber;
- a spring-biased tape wound within said annular reel;
- a driving wheel fixedly mounted on the output shaft of said motor for directly engaging the surface of said tape and thereby pushing said tape out of said case;
- a pull rod connected to said driving wheel;
- and
- a second switch mounted on said case and connected to said pull rod for disengaging said driving wheel from said tape surface so as to allow said spring-biased tape to be taken up.
A power operated tape measure comprising:
- a case having a battery chamber and a circular chamber;
- a motor mounted within said case and having an output shaft;
- a first switch mounted on said case and electrically connected with the battery chamber of said case for controlling said motor;
- an annular reel fitted within the circular chamber;
- a spring-biased tape wound within said annular reel;
- a drive belt detachably mounted on the output shaft of said motor for directly engaging the surface of said tape and thereby pushing said tape out of said case;
- a pull rod connected to said drive belt;
- and
- a second switch mounted on said case and connected to said pull rod for disengaging said drive belt from said tape surface so as to allow said spring-biased tape to be taken up.
Dependencies are inferred from the claim text.