Heat-cleaning oven latch and lock mechanism

• US 3,387,874 A
• Filed: 04/28/1966
• Issued: 06/11/1968
• Est. Priority Date: 04/28/1966
• Status: Expired due to Term

• Current Assignee: Holtkamp, Calvin J.
• Original Assignee: Holtkamp, Calvin J.
• Inventors: Holtkamp, Calvin J.
• Application Number:
  US04/545,894
• Time in Patent Office: 775 Days
• US Class Current: 292/201
• CPC Class Codes: A23G 7/0006 Apparatus for cleaning of chocolate or candies
• CPC Class Codes: C07D 307/73 by amino or imino, or substituted amino or imino radicals
• CPC Class Codes: F24C 15/022 Latches
• CPC Class Codes: Y10S 292/66 Thermally controlled mechanism
• CPC Class Codes: Y10T 292/1082 Motor
• CPC Class Codes: Y10T 292/1089 Sliding catch
• CPC Class Codes: Y10T 292/699 Motor controlled

Claims

1. IN AN OVEN OF THE TYPE ADAPTED TO UNDERGO HEATCLEANING, AND INCLUDING LATCHING MEANS ADJACENT THE FRONT OF THE OVEN STRUCTURE, LOCK EFFECTING MEANS ADJACENT THE REAR OF THE OVEN STRUCTURE, AND MOVABLE LINK MEANS EXTENDING BETWEEN SAID LATCHING MEANS AND SAID LOCK EFFECTING MEANS TO RELATE THE OPERATION THEREOF IN ACCORDANCE WITH EXISTING CONDITIONS;

FRAME MEANS CARRYING THE OPERATIONAL ELEMENTS OF SAID LOCK EFFECTING MEANS IN GENERALLY FIXED RELATION TO EACH OTHER;

MEANS MOUNTING SAID FRAME MEANS TO SAID OVEN STRUCTURE FOR LIMITED MOVEMENT OF SAID FRAME MEANS AS A WHOLE;

MEANS CONNECTING THE REAR END OF SAID LINK MEANS TO SAID OPERATIONAL ELEMENTS SO THAT MOVEMENT OF SAID LINK MEANS INFLUENCES THE OPERATION OF SAID OPERATIONAL ELEMENTS, THE FORWARD END OF SAID LINK MEANS BEING DISPOSED RELATIVE TO SAID LATCHING MEANS UNDER HIGH OVEN TEMPERATURE CONDITIONS TO PREVENT OPERATION OF SAID LATCHING MEANS TO AN UNLATCHED POSITION;

AND MEANS FOR MOVING SAID FRAME MEANS, IN ACCORDANCE WITH CHANGES IN SPACING BETWEEN SAID LOCK EFFECTING MEANS AND SAID LATCH MEANS ARISING FROM THERMAL EXPANSION AND CONTRACTION OF SAID RANGE BODY, TO MAINTAIN SUBSTANTIALLY THE SAME RELATIONSHIP BETWEEN SAID LATCH MEANS AND THE FORWARD END OF SAID LINK MEANS TO PREVENT THE OCCURRENCE OF AN UNLOCKED CONDITION WITH HIGH OVEN TEMPERATURES.