Machine for producing light polarizing panels and method

• US 3,322,601 A
• Filed: 08/31/1962
• Issued: 05/30/1967
• Est. Priority Date: 08/31/1962
• Status: Expired due to Term

• Current Assignee: PC., Inc.
• Original Assignee: Herbert K. Wong, John G. Yee
• Inventors: Wong, Herbert K., Yee, John G.
• Application Number:
  US04/220,834
• Time in Patent Office: 1,733 Days
• US Class Current: 156/499
• CPC Class Codes: G02B 5/3025 Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state G02B5/3008, G02B5/3016 take precedence
• CPC Class Codes: Y10T 156/1048 to form dished or receptacle-like product

Claims

1. A MACHINE FOR LAMINATING A LIGHT TRANSMITTING TOP SHEET, A LIGHT TRANSMITTING BOTTOM SHEET AND AN INTERMEDIATE LIGHT POLARIZING MEMBER INTO A LIGHT POLARIZING PANEL COMPRISING IN COMBINATION A TOP FRAME MEMBER, A BOTTOM FRAME MEMBER, SPACED INNER AND OUTER GASKET MEANS CARRIED BY SAID TOP AND BOTTOM FRAME MEMBERS TO FORM A SUBSTANTIALLY AIR TIGHT ENCLOSURE BETWEEN THE FRAME AND MEMBRS, AND ELONGATED BAR DISPOSED BETWEEN THE TOP AND BOTTOM SHEETS AND RECEIVED BETWEEN THE INNER GASKET MEANS, A PLURALITY OF TRANSVERSE BORES IN THE SAID BAR CONNECTING THE SPACE BETWEEN THE TOP AND BOTTOM SHEETS AND THE SPACE BETWEEN THE INENR AND OUTER GASKETS, MEANS TO APPLY A VACUUM SOURCE TO THE FRAME TO SUBSTANTIALLY REMOVE THE AIR FROM BETWEEN THE SHEETS AND LIGHT POLARIZING MEMBER, AND MEANS TO APPLY HEAT TO THE ASSEMBLY WHILE SUBJECTED TO VACUUM TO FORM A LAMINATED LIGHT POLARIZING PANEL.