Test apparatus for automobile generators, alternators and voltage regulators

• US 3,142,797 A
• Filed: 04/20/1961
• Issued: 07/28/1964
• Est. Priority Date: 04/20/1961
• Status: Expired due to Term

• Current Assignee: George W. Grant
• Original Assignee: George W. Grant
• Inventors: Grant, George W.
• Application Number:
  US04/104,366
• Time in Patent Office: 1,195 Days
• US Class Current: 324/416
• CPC Class Codes: G01R 31/006 on road vehicles, e.g. automobiles or trucks testing of ignition installations peculiar to internal combustion engines F02P17/00

Claims

1. A TEST APPARATUS FOR AUTOMOBILE GENERATORS, ALTERNATORS AND VOLTAGE REGULATORS COMPRISING (A) COUPLING MEANS COMPRISING FIRST, SECOND, THIRD, FOURTH AND FIFTH COUPLINGS FOR CONNECTION TO THE UNGROUNDED TERMINAL OF AN AUTOMOBILE BATTERY, THE BATTERY TERMINAL OF AN AUTOMOBILE VOLTAGE REGULATOR, THE FIELD TERMINAL OF THE AUTOMOBILE VOLTAGE REGULATOR, THE FIELD TERMINAL OF AN AUTOMOBILE GENERATOR AND THE GENERATOR TERMINAL OF THE AUTOMOBILE VOLTAGE REGULATOR, RESPECTIVELY;

AND A SIXTH COUPLING FOR CONNECTION TO THE AUTOMOBILE GROUND;

(B) A METERING CIRCUIT;

(C) CIRCUIT MEANS INCLUDING RESPECTIVE FIRST PAIRS OF NORMALLY CLOSED CONTACTS OF RESPECTIVE FIRST AND SECOND MULTIPLE CONTACT SWITCH MEANS CONNECTING SAID METERING CIRCUIT BETWEEN SAID SECOND AND SIXTH COUPLING;

(D) SAID METERING CIRCUIT HAVING MEANS FOR INDICATING THE VOLTAGE BETWEEN SAID SECOND AND SIXTH COUPLINGS AND BEING CAPABLE OF INDICATING WHETHER SAID VOLTAGE IS BELOW, WITHIN OR ABOVE A PREDETERMINED VOLTAGE RANGE;