Filtered connector pin contact

Claim 2

In a filter contact unit for an electrical connector, an elongated conductive body having first and second end portions and an elongated central portion of reduced diameter with shoulders separating said end portions from said central portion, impedance means around said elongated central portion comprising a plurality of separate sections that are axially movable along said central portion, capacitance sleeve means of dielectric material surrounding said central portion, inner conductive sleeve means, outer conductive sleeve means on the outer surface of said capacitance sleeve means, and support and electrical connection means for resiliently supporting said capacitance sleeve means from said conductive body and for providing electrical connection between said inner conductive sleeve means and said conductive body, said support and electrical connection means including washers of a resilient conductive material interposed between said conductive body and said inner conductive sleeve means at each end of said capacitance sleeve means being in pressure engagement with said shoulders and compressed to hold said impedance sections butted in end-to-end relation.

Claim 3

In a filter contact unit as defined in claim 1, said inner conductive sleeve means including a first sleeve engaged by said washer and a second sleeve disposed in end-to-end spaced relation to said first sleeve, and said support and electrical connection means comprising a second washer interposed between said conductive body and said second sleeve, said second washer being engaged between said ferrule means and the other of said shoulders, the axial length of said capacitance sleeve means being less than the distance between said shoulders and greater than the length of said ferrule means, each of said washers being generally T-shaped and including the portion compressed axially between the ends of said capacitance sleeve means and said shoulders and a portion compressed radially between said capaciTance sleeve means and said central portion with each washer being additionally compressed axially between said ferrule means and said shoulders.

Claim 4

An elongated filter pin contact having specified electrical signal transmission characteristics when positioned within an electrical connector of the type wherein a plurality of contact pins are both releasably retained and held in electrical contact with a conductive member within the connector and in specified respective operating positions so as to permit the selective insertion and withdrawal of said contacts from the connector on an individual basis through the use of manually manipulatable tools conditionally subjecting the contact to bending moments during the insertion and withdrawal of the contact in and from the connector said filter pin comprising: an axially substantially straight-line flexible elongated body of electrically conductive material having a central portion extending along a substantial part of the length of said body with electrically conductive shoulder means positioned at each extremity of said central portion, said body extending a substantial distance axially away from each of said shoulder means and said central portion to form first and second electrical connection elements at least one of which may be mechanically engaged by a manually manipulated tool for inserting and withdrawing the contact in and from a connector; ferrule means having inner and outer surfaces surrounding said central portion and extending along substantially the entire length of said central portion and interposed between but spaced apart from each of said shoulder means, said ferrule means comprising a body of brittle material having physical properties which cooperate with other elements of the ferrule means to establish said specified signal transmission characteristic, said body of brittle material extending along substantially the entire length of said ferrule means, said ferrule means further comprising at least one conductive contact means operatively coupled to elements of said ferrule to further at least in part define said transmission characteristics, said contact means being disposed on the inner surface of said ferrule means and extending substantially to the axial extent of one end thereof; at least one resilient electrically conductive body positioned at said one end of said ferrule and interposed in compression between said elongated body and said contact means and in compression between the outer end surfaces of said ferrule means and one of said shoulder means; and at least one resilient body positioned at the other end of said ferrule and interposed in compression between said elongated body and the inner surface of said ferrule and in compression between the outer end surface of said ferrule and the other of said shoulder means, the resiliency and mass of and the compression applied to said resilient bodies being selected so as to protect said body of brittle material from breakage upon the application of substantial bending moments between said first and second electrical connection elements.

Claim 5

An elongated filter pin contact having specified electrical signal transmission characteristics when positioned within an electrical connector of the type wherein a plurality of contact pins are both releasably retained and held in electrical contact with a conductive member within the connector and in specified respective operating positions so as to permit the selective insertion and withdrawal of said contacts from the connector on an individual basis through the use of manually manipulatable tools conditionally subjecting the contact to bending moments during the insertion and withdrawal of the contact in and from the connector said filter pin comprising: an axially substantially straight-line flexible elongated body of electrically conductive material having a central portion extending along a substantial part of the length of said body with electrically conductive shoulder means positioned at each extremity of said central portion, said body extending a substantial distance axially away from each of said shoulder means and said central portion to form first and second electrical connection elements at least one of which may be mechanically engaged by a manually manipulated tool for inserting and withdrawing the contact in and from a connector; ferrule means having inner and outer surfaces surrounding said central portion and extending along substantially the entire length of said central portion and interposed between but spaced apart from each of said shoulder means, said ferrule means comprising a body of brittle material having physical properties which cooperate with other elements of the ferrule means to establish said specified signal transmission characteristic, said body of brittle material extending along substantially the entire length of said ferrule means, said ferrule means further comprising at least one conductive contact means operatively coupled to elements of said ferrule to further at least in part define said transmission characteristics, said contact means being disposed on the inner surface of said ferrule means and extending substantially to the axial extent of one end thereof; at least one resilient electrically conductive body positioned at said one end of said ferrule and interposed in compression between said elongated body and said contact means and in compression between the outer end surfaces of said ferrule means and one of said shoulder means; and at least one resilient body positioned at the other end of said ferrule and interposed in compression between said elongated body and the inner surface of said ferrule and in compression between the outer end surface of said ferrule and the other of said shoulder means, the resiliency and mass of and the compression applied to said resilient bodies being selected so as to protect said body of brittle material from breakage upon the application of substantial bending moments between said first and second electrical connection elements.

Claim 6

A filter pin contact as defined in claim 3 wherein said elongated body is at substantially all points throughout its length circularly cylindrical with said central portion having a diameter substantially less than at least one of said electrical connection elements and both of said shoulder means having a diameter greater than said at least one electrical connection element and wherein the outer diameter of said ferrule means is substantially the same as said shoulder means and the inner diameter of said ferrule means is such as to slip fit over said reduced diameter central portion.