Gas analyzer with testing mode

• US 3,343,402 A
• Filed: 03/16/1965
• Issued: 09/26/1967
• Est. Priority Date: 03/19/1964
• Status: Expired due to Term

• Current Assignee: Rolf Hubner
• Original Assignee: Rolf Hubner
• Inventors: Hubner, Rolf
• Application Number:
  US04/440,223
• Time in Patent Office: 924 Days
• US Class Current: 73/31.02
• CPC Class Codes: G01N 1/24 Suction devices G01N1/22 - G01N1/2294 take precedence
• CPC Class Codes: G01N 33/0011 Sample conditioning in general G01N1/28

Claims

1. IN A GAS ANALYZER HAVING ELECTRICALLY ACTUATABLE GASASPIRATING MEANS COMMUNICATING WITH THE AMBIENT ATMOSPHERE;

ELECTRICALLY OPERABLE MEASURING MEANS INCLUDING SENSING MEANS FOR THE ANALYSIS OF ASPIRATED GAS AND INDICATOR MEANS RESPONSIVE TO SAID SENSING MEANS FOR PROVIDING A MEASUREMENT DERIVED FROM SAID ANALYSIS;

A SOURCE OF ELECTRIC POTENTIAL FOR OPERATING SAID GAS-ASPIRATING MEANS AND SAID MEASURING MEANS;

AND ELECTRICALLY OPERABLE TIMER MEANS FOR CONNECTING SAID SOURCE WITH SAID GAS-ASPIRATING MEANS AND WITH SAID MEASURING MEANS FOR ACTUATING THE LATTER AFTER A PREDETERMINED PERIOD OF OPERATION OF SAID GAS-ASPIRATING MEANS, THE IMPROVEMENT WHICH COMPRISES;

TESTING-SWITCH MEANS FOR INACTIVATING SAID TIMER MEANS TO PERMIT NONDELAYED OPERATION OF SAID MEASURING MEANS.