Battery tester

• US 3,308,366 A
• Filed: 04/24/1964
• Issued: 03/07/1967
• Est. Priority Date: 04/24/1964
• Status: Expired due to Term

• Current Assignee: Julien J. Arpin
• Original Assignee: Julien J. Arpin
• Inventors: Arpin, Julien J.
• Application Number:
  US04/362,335
• Time in Patent Office: 1,047 Days
• US Class Current: 320/136
• CPC Class Codes: G01R 31/364 Battery terminal connectors with integrated measuring arrangements
• CPC Class Codes: G01R 31/3646 for indicating electrical conditions or variables, e.g. visual or audible indicators
• CPC Class Codes: H01M 10/484 for measuring electrolyte level, electrolyte density or electrolyte conductivity
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10S 320/21 State of charge of battery

Claims

2. A DEVICE FOR AUTOMATICALLY CONTROLLING AN ELECTRICAL CONNECTION FROM A BATTERY IN RESPONSE TO THE CONDITION OF THE BATTERY ELECTROLYTE COMPRISING AN ELECTRICALLY NONCONDUCTIVE FLOAT DISPOSED IN THE ELECTROLYTE, A PAIR OF ELECTRODES SPACED FROM ONE ANOTHER AND EXTENDING THROUGH AND SUPPORTED BY SAID FLOAT IN CONTINUOUS CONTACT WITH THE ELECTROLYTE, A SOURCE OF CURRENT CONNECTED TO ONE OF SAID ELECTRODES, A RELAY PROVIDING THE ELECTRICAL CONNECTION BEING CONNECTED BETWEEN THE SOURCE OF CURRENT AND THE OTHER OF SAID ELECTRODES.