Radiation filters

• US 3,410,710 A
• Filed: 12/01/1964
• Issued: 11/12/1968
• Est. Priority Date: 10/16/1959
• Status: Expired due to Term

• Current Assignee: John M. Mochel
• Original Assignee: John M. Mochel
• Inventors: Mochel, John M.
• Application Number:
  US04/422,878
• Time in Patent Office: 1,442 Days
• US Class Current: 427/160
• CPC Class Codes: C03C 17/25 by deposition from the liquid phase
• CPC Class Codes: C03C 2217/214 Al2O3
• CPC Class Codes: C03C 2217/229 Non-specific enumeration
• CPC Class Codes: C03C 2217/23 Mixtures
• CPC Class Codes: C03C 2218/112 by spraying
• CPC Class Codes: E06B 7/28 Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners edge protecting devices for door leaves E06B3/88; special glazing; emergency glazing; double glazing E06B3/66
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: Y10S 359/90 Methods
• CPC Class Codes: Y10S 501/904 Infrared transmitting or absorbing

Claims

1. A METHOD OF PRODUCING A RADIATION FILTER WHICH COMPRISES HEATING A REFRACTORY SUBSTRATE TO A TEMPERATURE OF 500*-800*C., EXPOSING THE HEATED SUBSTRATE TO AN ATMOSPHERE CONTAINING A 1,3-BETA DIKETONATE OF AT LEAST ONE METAL HAVING AN ATOMIC NUMBER FROM 22 TO 29 WHEREBY SAID METAL DIKETONATE IS PYROLYZED TO FORM AN ADHERENT CLEAR METAL OXIDE FILM OF UNIFORM THICKNESS ON THE SUBSTRATE SURFACE.