Foldable draperies and methods of manufacture

• US 2,829,081 A
• Filed: 08/02/1954
• Issued: 04/01/1958
• Est. Priority Date: 08/02/1954
• Status: Expired due to Term

• Current Assignee: Clyde Sweem Ervin
• Original Assignee: Clyde Sweem Ervin
• Inventors: CLYDE SWEEM ERVIN
• Application Number:
  US03/447,361
• Time in Patent Office: 1,338 Days
• US Class Current: 156/300
• CPC Class Codes: A47G 5/00 Screens shutters closing an opening E06B9/02; fly-screens E06B9/52; Draught-deflectors
• CPC Class Codes: B29C 65/483 Reactive adhesives, e.g. chemically curing adhesives
• CPC Class Codes: E06B 3/481 Wings foldable in a zig-zag manner or bi-fold wings
• CPC Class Codes: Y10T 156/1093 with covering of discrete laminae with additional lamina

Claims

1. THE METHOD OF MANUFACTURING FOLDABLE DRAPERIES COMPRISING ASSEMBLING A SUCCESSION OF THIN, FLEXIBLE STRIPS OF WOOD VENEER OF UNIFORM THICKNESS, DISPOSED EDGE TO EDGE, FLATLY AND IN SLIGHTLY SPACED RELATIONSHIP, BETWEEN TWO THIN TRANSPARENT SHEETS OF THERMO-PLASTIC MATERIAL, SUBJECTING THE ASSEMBLED SHEETS AND STRIPS TO HEAT AND PRESSURE BETWEEN THE PLATENS OF A PRESS AT A STARTING TEMPERATURE OF APPROXIMATELY 300*F. AND THE PLATEN PRESSURE BEING APPLIED INITIALLY AT 50 POUNDS PER SQUARE INCH AND MAINTAINED UNTIL THE TEMPERATURE IN THE WOOD STRIPS HAS REACHED APPROXIMATELY 285*F., THEN BEING INCREASED TO APPROXIMATELY 200 PER SQUARE INCH AND WHILE THE PLATEN HEAT IS DISCONTINUED, THUS CAUSING A GRADUAL LOWERING OF HEAT THEREIN, REMOVING THE PRESSED ARTICLE FROM BETWEEN THE PLATENS WHEN THE TEMPERATURE THEREIN HAS LOWERED TO APPROXIMATELY 100*F., AND CAUSING THE ARTICLE TO COOL GRADUALLY UNDER ATMOSPHERIC CONDITION.