Apparatus for removal of electric charges from dielectric film surfaces

• US 3,268,766 A
• Filed: 02/04/1964
• Issued: 08/23/1966
• Est. Priority Date: 02/04/1964
• Status: Expired due to Term

• Current Assignee: Earl Amos Stephen
• Original Assignee: Earl Amos Stephen
• Inventors: EARL AMOS STEPHEN
• Application Number:
  US04/342,378
• Time in Patent Office: 931 Days
• US Class Current: 361/212
• CPC Class Codes: B29C 53/32 Coiling B29C53/56 takes precedence
• CPC Class Codes: B29C 71/00 After-treatment of articles without altering their shape; Apparatus therefor B29C44/56, B29C73/00 take precedence; surface shaping B29C59/00 ; for joined or sealed parts B29C66/03; after-treatment specially adapted for vulcanising tyres B29D30/0633
• CPC Class Codes: B29D 7/00 Producing flat articles, e.g. films or sheets B29D24/00 takes precedence
• CPC Class Codes: D01G 23/00 Feeding fibres to machines; Conveying fibres between machines D01G21/00 takes precedence; intermediate feeds in carding machines D01G15/40
• CPC Class Codes: H05F 3/00 Carrying-off electrostatic charges from shoes A43B7/36; from living beings A61N1/14; from tyres B60C19/08; from vehicles B60R16/06; from aircraft B64D45/02; from large containers B65D90/46
• CPC Class Codes: Y10S 174/17 in an electric power conversion, regulation, or protection system

Claims

1. IN MACHINERY FOR THE PROCESSING OF A TRAVELLING CONTINUOUS WEB OF DIELECTRIC MATERIAL SUSCEPTIBLE TO THE ACCUMULATION OF CHARGES OF STATIC ELECTRICITY, THE IMPROVEMENT WHICH COMPRISES A STATIONARY WEB GUIDE OPERATIVE TO REMOVE ACCUMULATED CHARGES OF STATIC ELECTRICITY FROM THE SURFACE OF THE TRAVELLING WEB COMPRISING A CLOSED TUBULAR MEMBER DISPOSED TRANSVERSELY OF AND BELOW THE TRAVELLING WEB, AND HAVING AN ELECTRICALLY CONDUCTIVE WALL PERVIOUS TO GAS IN THE AREA THEREOF IMMEDIATELY ADJACENT THE TRAVELLING WEB, MEANS FOR CONTINUOUSLY FEEDING GAS UNDER PRESSURE TO THE INTERIOR OF SAID TUBULAR MEMBER WHEREBY GAS IS CONTINUOUSLY FORCED THRU SAID PERVIOUS AREA AND AGAINST SAID WEB TO MAINTAIN A BLANKET OF GAS OF PREDETERMINED THICKNESS BETWEEN THE SURFACE OF THE TUBULAR MEMBER AND THE WEB TRAVELLING THEREOVER, AND A LOW RESISTANCE ELECTRICAL CONDUCTOR CONNECTING SAID ELECTRICALLY CONDUCTIVE ALL TO AN EARTH GROUND.