Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
252 words
An electrical jack assembly for connecting a rotary plug having a cylindrical trunk and a head end, said jack comprising: a casing having a front end and a rear end; a sleeve unit affixed to said casing front end, said sleeve unit having a cylindrical sleeve formed with a central bore for insertion of a cylindrical trunk of a plug; two pairs of electrically conductive spring leaf contact frames positioned within said casing, said frames having leaves angled inwardly, each being provided with an oil-impregnated roller at an end arranged to contact the trunk of a plug inserted into said cylindrical sleeve at right angles to a longitudinal axis of the plug; and a rear cover affixed to said casing rear end, said rear cover having a central hole positioned to receive a head end of an inserted plug and having a switch unit mounted thereon, wherein said switch unit comprises a first segment mounted externally of said rear cover and having a contact positioned adjacent a perimeter of said central hole, and a second resilient segment mounted externally on said rear cover having an insulating plug contact mount positioned at said central hole and a contact formed at an end thereof so as to resiliently engage said contact of said first segment, such that a head end of a plug inserted in said cylindrical sleeve passes through said central hole to make contact with said insulating contact mount causing actuation of said contacts of said switch unit first and second segments.
Claim 2
Dependent Claim
252 words
An electrical jack assembly for connecting a rotary plug having a cylindrical trunk and a head end, said jack comprising: a casing having a front end and a rear end; a sleeve unit affixed to said casing front end, said sleeve unit having a cylindrical sleeve formed with a central bore for insertion of a cylindrical trunk of a plug; two pairs of electrically conductive spring leaf contact frames positioned within said casing, said frames having leaves angled inwardly, each being provided with an oil-impregnated roller at an end arranged to contact the trunk of a plug inserted into said cylindrical sleeve at right angles to a longitudinal axis of the plug; and a rear cover affixed to said casing rear end, said rear cover having a central hole positioned to receive a head end of an inserted plug and having a switch unit mounted thereon, wherein said switch unit comprises a first segment mounted externally of said rear cover and having a contact positioned adjacent a perimeter of said central hole, and a second resilient segment mounted externally on said rear cover having an insulating plug contact mount positioned at said central hole and a contact formed at an end thereof so as to resiliently engage said contact of said first segment, such that a head end of a plug inserted in said cylindrical sleeve passes through said central hole to make contact with said insulating contact mount causing actuation of said contacts of said switch unit first and second segments.
Claim 3
Dependent Claim
55 words
An electrical jack assembly as set forth in claim 1, wherein one of said pairs of contact frames is positioned to have its rollers contact said plug trunk at a neck thereof, at a position where said plug head end will hold said switch unit contacts in an actuated condition when engaged by said rollers.
Claim 4
Dependent Claim
29 words
An electrical jack assembly as set forth in claim 1, wherein said casing is of generally cubic shape, and said switch unit segments extend obliquely across said rear end.
Claim 5
Dependent Claim
41 words
An electrical jack assembly as set forth in claim 1, wherein said rear cover affixed to said casing is formed so as to hold said sleeve unit, said contact frames and said first and second contact segments in an assembled condition.