Back to results
US 6,647,242 B2Granted
Flexible conductive plastic static control device
AssigneeIllinois Tool Works Inc.
InventorsDaniel F. Gagnon, Daniel P. McCormick, Jeffrey W. Richardson
Life of this patent
Estimating the term…
Abstract
A static control device suitable for printers, copiers and the like is disclosed. A carrier strip of non-metallic electrically conductive material, such as plastic, is provided with a plurality of spaced bundles of electrically conductive filaments. The bundles extend beyond the carrier strip, in close proximity to media transported along a media path in the media handling apparatus. In the presence of electrical fields, the filaments induce ionization, and establish a conductive path for charges on the media to the carrier strip for grounding.
Claims16
A static control device comprising:
- a carrier strip of flexible, non-metallic, electrically conductive material, said strip having a length and first and second lateral edges extending along said length, said strip having a front surface and a back surface extending between said edges, and said strip being flexible in a direction between said surfaces and being resistive to bending in a transverse direction defined between said lateral edges;
- and
- at least one bundle of electrically conductive filaments attached to and along said back surface of said carrier strip with an adhesive layer placed on said back surface of said carrier strip, said at least one bundle of filaments disposed on said strip transverse to said lateral edges and extending beyond at least one of said lateral edges, and said adhesive layer being adapted to attach said carrier strip to a frame member.
A static control device comprising:
- a carrier strip of flexible, non-metallic, electrically conductive material, said strip having a length and first and second lateral edges extending along said length, said strip having a front surface and a back surface and being flexible in a direction between said surfaces and being resistive to bending in a transverse direction defined between said lateral edges;
- and
- at least one bundle of electrically conductive filaments attached to said back surface of said carrier strip with an adhesive layer placed on said back surface of said carrier strip, said at least one bundle of filaments disposed on said strip transverse to said lateral edges and extending beyond at least one of said lateral edges, and said adhesive layer being adapted to attach said carrier strip to a frame member, wherein said adhesive layer is electrically conductive.
A static control system for a media handling apparatus comprising:
- frame members and conveying devices providing a media path for transporting sheets of media through the apparatus along said media path;
- and
- a static control device including;
- a non-metallic conductive carrier strip, said carrier strip having a length and first and second lateral edges, said carrier strip being attached and electrically connected to at least one of said frame members;
- and
- at least one bundle of electrically conductive filaments attached to said carrier strip, said at least one bundle of filaments disposed on said strip transverse to said lateral edges, and extending beyond at least one of said lateral edges, said at least one bundle of electrically conductive filaments being spaced from media transported along said media path.
3 more elements
A static control system for a media handling apparatus comprising:
- at least one frame member and conveying devices providing a media path for transporting sheets of media through the apparatus along said media path;
- and
- a static control device including;
- a flexible, conductive plastic carrier strip, said carrier strip having a length and first and second lateral edges extending along said length, said carrier strip being attached and electrically connected to at least one of said frame members, and disposed transverse to media transported along said media path, said strip having a front surface and a back surface and being flexible in a direction between said surfaces and being resistive to bending in a transverse direction defined between said lateral edges;
- and
- a plurality of bundles of electrically conductive filaments attached to said carrier strip, said plurality of bundles of filaments disposed on said strip transverse to said lateral edges, and extending beyond at least one of said lateral edges, toward said media path, said filaments having diameters sufficiently small to induce ionization in the presence of an electrical field, and having distal ends remote from said carrier strip disposed in spaced relation to media transported along said media path.
3 more elements
Dependencies are inferred from the claim text.