Brazed laminated construction and method of fabrication thereof

• US 3,334,399 A
• Filed: 12/31/1962
• Issued: 08/08/1967
• Est. Priority Date: 12/31/1962
• Status: Expired due to Term

• Current Assignee: Ross W. Teeguarden
• Original Assignee: Ross W. Teeguarden
• Inventors: Teeguarden, Ross W.
• Application Number:
  US04/248,742
• Time in Patent Office: 1,681 Days
• US Class Current: 29/890.039
• CPC Class Codes: B21D 53/04 of sheet metal
• CPC Class Codes: F28D 9/0056 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
• CPC Class Codes: F28D 9/0075 the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
• CPC Class Codes: F28F 2250/102 with change of flow direction
• CPC Class Codes: F28F 2275/04 by brazing brazing heat exchangers B23K1/0012
• CPC Class Codes: Y10T 29/49366 Sheet joined to sheet

Claims

1. IN THE METHOD OF FABRICATING A HEAT EXCHANGER WHEREIN A PLURALITY OF PLATES AND WEBS ARE STACKED SUCCESSIVELY TO FORM HEAT EXCHANGER SPACES INDIVIDUAL TO A RESPECTIVE FLUID FOR EXCHANGING HEAT BETWEEN TWO FLUIDS, THE METHOD COMPRISING PROVIDING A SUITABLE INTERMEDIATE OPENING IN EACH OF SAID PLATES AND WEBS FOR CONDUCTING EACH FLUID, AN EDGE RECESS IN CERTAIN OF SAID PLATES AND WEBS WITH EACH RECESS HAVING A SHOULDER THEREIN, STACKING SAID PLATES AND WEBS SUCCESSIVELY WITH THE RECESSES AND SHOULDERS ALIGNED WHEREBY SAID RECESSES PROVIDE A LOCKING ELEMENT PASSAGEWAY WITH AN OPEN END, INSERTING A LOCKING ELEMENT THROUGH SAID OPEN END AND IN SAID LOCKING ELEMENT PASSAGE-