Grip indicator

• US 3,323,367 A
• Filed: 12/01/1964
• Issued: 06/06/1967
• Est. Priority Date: 12/01/1964
• Status: Expired due to Term

• Current Assignee: Raymond W. Searle
• Original Assignee: Raymond W. Searle
• Inventors: Searle, Raymond W.
• Application Number:
  US04/414,987
• Time in Patent Office: 917 Days
• US Class Current: 473/202
• CPC Class Codes: A63B 2060/464 Means for indicating or measuring the pressure on the grip
• CPC Class Codes: A63B 2071/0658 Position or arrangement of display
• CPC Class Codes: A63B 2220/54 Torque
• CPC Class Codes: A63B 2220/56 Pressure
• CPC Class Codes: A63B 2220/801 Contact switches
• CPC Class Codes: A63B 2220/833 Sensors arranged on the exercise apparatus or sports implement
• CPC Class Codes: A63B 69/3632 Clubs or attachments on clubs, e.g. for measuring, aligning A63B69/3614 takes precedence; clubs for swinging exercises in general A63B15/00
• CPC Class Codes: A63B 71/0622 Visual, audio or audio-visual systems for entertaining, instructing or motivating the user

Claims

1. IN COMBINATION WITH THE HANDLE OF AN ATHLETIC CLUB OR THE LIKE HAVING A CONFIGURATION SO THAT IT MAY BE GRIPPED BY THE HAND OF A USER, A GRIP SENSOR MOUNTED ON SAID HANDLE, SAID SENSOR COMPRISING (1) A FIRST CONDUCTIVE MEMBER DISPOSED NEXT TO SAID HANDLE, (2) A STRIP OF RESILIENT CONDUCTIVE PLASTIC THAT EXHIBITS A CHANGE IN ELECTRICAL RESISTANCE WHEN IT IS COMPRESSED, SAID CONDUCTIVE PLASTIC OVERLYING SAID FIRST CONDUCTIVE MEMBER, AND (3) A SECOND FLEXIBLE CONDUCTIVE MEMBER OVERLYING SAID STRIP, SAID STRIP MAKING ELECTRICAL CONTACT WITH BOTH OF SAID CONDUCTIVE MEMBERS, A GRIP MEMBER SURROUNDING AND CONCEALING SAID SENSOR, SAID GRIP BEING MADE OF A PLIANT MATERIAL SO THAT A PRESSURE EXERTED THEREON BY THE USER'"'"''"'"'S HAND IS EFFECTIVE TO COMPRESS SAID SENSOR AND THEREBY CHANGE THE ELECTRICAL RESISTANCE OF SAID STRIP, AND A PAIR OF ELECTRICAL TERMINALS MOUNTED ON SAID HANDLE, SAID TERMINALS BEING CONNECTED TO SAID CONDUCTIVE MEMBERS WHEREBY SAID SENSOR MAY BE COUPLED BY SAID TERMINALS TO MEANS FOR MEASURING AND INDICATING CHANGES IN SAID ELECTRICAL RESISTANCE PRODUCED BY THE PRESSURE OF THE USER'"'"''"'"'S HAND ON SAID GRIP MEMBER, SAID TERMINALS BEING LOCATED SO AS NOT TO INTERFERE WITH THE USER'"'"''"'"'S HAND.