Einzeltreffer — DigiBib

A low profile ionizing surface (LPIS) for use as a static eliminator or charging means in an apparatus within which insulative material is contacted by apparatus surfaces. The LPIS includes a low profile fibrous network of randomly disposed, electrically conductive, 0.5-50 .mu.m by 1/8"-3" microfibers in electrically conductive contact with one another across the network, providing microfiber ionizing points across the network surface. The thickness of the network is significantly less than the average length of the microfibers. An adhesive layer fixes the network to a surface of the machine. Thus, when the network is grounded or electrically charged, static charge is removed from the material as it passes across or near the exposed surface of the network. The LPIS may be in the form of a peel-and-stick sheet or tape, or a kit may be provided to install the LPIS in an apparatus. An ionizing part for an apparatus, the part including the LPIS, and a method for ionization of air between a surface of an apparatus and a passing insulative material are also disclosed.

Titel:	Static eliminator and method
Autor/in / Beteiligte Person:	Larkin, William J.
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	1996
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 5,501,899 Publication Date: March 26, 1996 Appl. No: 08/247,051 Application Filed: May 20, 1994 Claim: I claim Claim: 1. A low profile ionizing surface for use in an apparatus through which insulative material flows or is propelled, said low profile ionizing surface comprising Claim: a low profile fibrous network having an exposed and an adhered surface and comprising a multiplicity of electrically conductive microfibers crossing one another at intervals to be in electrically conductive communication with one another across said network, the lengths of said microfibers being selected to provide a multiplicity of microfiber ionizing points disposed across said network at or near said exposed surface, the thickness of said network being less than the average length of said microfibers; and Claim: an adhesive means comprising an adhesive layer to bond said adhered surface to a surface of said apparatus such that, when said network is electrically grounded or electrically charged, air between said ionizing points and said material passing said exposed surface is sufficiently ionized to remove static charge from said material or to attract or repel said material to or from said apparatus surface. Claim: 2. A low profile ionizing surface in accordance with claim 1 wherein said network is a non-woven fabric. Claim: 3. A low profile ionizing surface in accordance with claim 1 wherein said microfibers are about 0.5-50 .mu.m in diameter and about 1/8"-3" long. Claim: 4. A low profile ionizing surface in accordance with claim 1 wherein Claim: said network of microfibers is in the form of a self-supporting sheet or tape; and Claim: said adhesive means is a peel-and-stick adhesive backing on said adhered surface, said peel-and-stick backing comprising an adhesive layer on said adhered surface and a peel-away layer contiguous with said adhesive layer, such that said peel-away layer may be removed, leaving said adhesive layer on said adhered surface for fixing said adhered surface to said machine surface. Claim: 5. A low profile ionizing surface in accordance with claim 1 wherein said electrically conductive microfibers are selected from the group consisting of carbon, metal coated carbon, copper, stainless steel, metal coated acrylic, metallized acrylic, and electrically conductive polymers. Claim: 6. A low profile ionizing surface in accordance with claim 1 wherein said adhesive layer comprises an electrically conductive adhesive. Current U.S. Class: 428/288; 428/40; 428/290; 4283/111; 428/343; 428/344; 428/254; 428/261; 361/212 Current International Class: H02H 100; D04H 158 Patent References Cited: 3475213 October 1969 Stow ; 3757164 September 1973 Binkowski ; 3904929 September 1975 Kanaya et al. ; 3936170 February 1976 Shibano et al. ; 3986530 October 1976 Maekawa ; 4364739 December 1982 Tomibe et al. ; 4410593 October 1983 Tomibe et al. ; 4553191 November 1985 Franks et al. ; 4563232 January 1986 Peake ; 4961804 October 1990 Aurichio ; 4966729 October 1990 Carmona et al. ; 4971726 November 1990 Maeno et al. ; 4976890 December 1990 Felter et al. ; 4983148 January 1991 Nakagawa ; 5049850 September 1991 Evans ; 5075036 December 1991 Parish et al. ; 5082595 January 1992 Glackin ; 5084211 January 1992 Kawaguchi et al. ; 5246771 September 1993 Kawaguchi ; 5262229 November 1993 Lampert et al. ; 5354607 October 1994 Swift et al. Other References: Luxon, B., "EMI/RFI Shielding", Soc. Plastics Engrs, Chicago Section, Tech. Conf. Abstract (1984). ; Fahey, L. J., "Architectural Sheilding With Advanced Nonwoven Structures", (Publication unknown). ; Brochure, Nippon Sammo Dyeing Co., Ltd. (Date unknown). ; Various Brochures, American Cyanamid Co., Re Cycom MCG Fiber Prods. (Dec. 1984 to Jul. 1985). ; Various Product Literature, International Paper, Re Safnshielded Prods. (Feb. 1989). Primary Examiner: Lesmes, George F. Assistant Examiner: Morris, Terrel Attorney, Agent or Firm: Craig, Frances P.

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Static eliminator and method