Counter device associated with switch actuator of electrical shaver to determine battery recharging and use
AssigneeSperry Rand Corporation
InventorMichael John Marchetti
Life of this patent
Estimating the term…
Abstract
A counting device for a battery operated appliance for visually displaying on a counter dial the number of uses of the appliance between recharging or replacement of the batteries. The counter dial is mounted within the appliance with an indicia portion visible at the outer surface of the casing. Movement of the dial is controlled by operation of the on/off switch for the appliance and a reset wheel is included for restoring the counter dial to an "0" or starting position.
Claims12
A counter for visually indicating to the user the number of prior uses of a battery operated appliance including a casing having a display opening formed therein, a switch within the casing for establishing an electrical circuit between batteries and appliance output means, said counter comprising;
- a. an elongated slide member provided with a dial opening and slidably disposed against an inner surface of the casing for sliding movement between spaced limit positions for selectively operating the switch and including actuator means operable from outside the casing to effect said sliding movement,
- b. an indicia dial attached to a shaft having opposite ends thereof rotatably mounted in trunnions formed on inner walls of the casing, said dial having a portion thereof disposed in the dial opening of the slide member and having numerals inscribed serially on the periphery of said portion of the dial,
- c. ratchet means formed on said slide member and said dial operable upon movement of the slide member to a first of said spaced limit positions for rotating said dial a predetermined distance to expose the next highest numeral on the dial in the display opening in the casing,
- d. reset means mounted on said shaft for rotation therewith and operable from outside the casing through a second opening formed in the casing for resetting the dial to an initial start position, and
- e. detent means formed on said slide member and said reset means operable for detenting and holding said dial in said first limit position of the slide member upon rotation of the dial.
A counter for a battery operated electric dry shaver having a casing in which is arranged a motor, a motor operated cutter head means, and a switch for selectively establishing an electrical circuit between the motor and battery, said counter comprising,
- a. an elongated slide member provided with a dial opening and slidably mounted on an inner sidewall of the shaver casing for movement between spaced limit positions by operation of an actuator member exposed in an opening in said sidewall to control operation of said switch from outside the shaver casing,
- b. a dial attached to a shaft having opposite ends thereof rotatably mounted in trunnions formed within said casing, said dial having a portion thereof disposed in the dial opening of the slide member and having its peripheral surface adapted to rotate past a display opening in said sidewall, said dial having numerals serially inscribed on said peripheral surface for incremental display in said display opening,
- c. ratchet means formed on said slide member and said dial operable upon movement of said slide member to a first of said limit positions by said actuator member for rotation of said dial a predetermined distance to effect incremental display of said numerals in said display opening to visually display the total number of movements of said slide member,
- d. said slide member operable to a second of said limit positions without effective movement of said dial,
- e. reset means mounted on said shaft for rotation therewith and operable from outside the shaver casing through a second opening formed in said sidewall for moving said dial to a desired numerical position, and
- f. detent means formed on said slide member and said reset means operable for detenting and holding said dial in said desired numerical position.
Dependencies are inferred from the claim text.