CONDITION RESPONSIVE INPUT CONTROLLERS

• US 3,509,322 A
• Filed: 07/19/1965
• Issued: 04/28/1970
• Est. Priority Date: 07/19/1965
• Status: Expired due to Term

• Current Assignee: General Time Controls, Inc.
• Original Assignee: Robert S. Lundin
• Inventors: Lundin, Robert S.
• Application Number:
  US04/472,844
• Time in Patent Office: 1,744 Days
• US Class Current: 219/494
• CPC Class Codes: G05B 11/16 Two-step controllers, e.g. with on/off action
• CPC Class Codes: G05D 23/1913 delivering a series of pulses
• CPC Class Codes: G05D 23/24 the sensing element having a resistance varying with temperature, e.g. a thermistor
• CPC Class Codes: H03K 17/28 Modifications for introducing a time delay before switching modifications to provide a choice of time-intervals for executing more than one switching action H03K17/296

Claims