Two knuckle electrical hinge
First Claim
1. A hinge for mounting a door in a frame and for passing electric current between the door and frame through a concealed, tamperproof electrical wire comprising a first hinge leaf having a first hinge knuckle, a second hinge leaf having a second hinge knuckle, said first and second knuckles having axially aligned bores, a solid hinge pin disposed in the bores of said first and second knuckles and having a slot extending between the bores of said first and second knuckles for receiving a wire, first conduit means in said first leaf and knuckle for passing a wire from said first leaf to said slot, and second conduit means in said second leaf and knuckle for passing a wire from said slot to said second leaf.
1 Assignment
0 Petitions
Accused Products
Abstract
A hinge, preferably a two buckle hinge, for passing electric current between a door and frame through one or more concealed, tamperproof electrical wires includes a solid hinge pin that is disposed in the bores of adjacent hinge knuckles for providing relative pivoting of the hinge leaves. In one embodiment, the hinge pin extends partially into the bore of the knuckles to define a cavity in each of the hinge knuckles. The hinge pin includes a slot to receive one or more electrical wires extending between the cavities in the respective hinge knuckles. A conduit is formed in each hinge leaf and communicates through a hole in the respective hinge knuckle to the cavity, such that the wires extend from the cavity along the conduit and out through the back of each hinge leaf.
75 Citations
16 Claims
- 1. A hinge for mounting a door in a frame and for passing electric current between the door and frame through a concealed, tamperproof electrical wire comprising a first hinge leaf having a first hinge knuckle, a second hinge leaf having a second hinge knuckle, said first and second knuckles having axially aligned bores, a solid hinge pin disposed in the bores of said first and second knuckles and having a slot extending between the bores of said first and second knuckles for receiving a wire, first conduit means in said first leaf and knuckle for passing a wire from said first leaf to said slot, and second conduit means in said second leaf and knuckle for passing a wire from said slot to said second leaf.
- 12. A non-handed, two knuckle hinge for mounting a door in a frame and for passing electric current between the door and frame through a concealed, tamperproof electrical wire comprising a pair of hinge leaves, each said leaf including means for mounting the leaf to one of a door and a jamb, a hinge knuckle associated with each leaf, said hinge knuckles having axially aligned bores, a solid hinge pin pivotably extending through the bore of one of said knuckles and into the bore of the other of said knuckles, means for securing said pin in said other knuckle against axial movement, first bearing means between said knuckles for acting as a vertical thrust bearing when a door is mounted to the leaf associated with the upper of the two knuckles, and second bearing means in the bore of said one knuckle between said hinge pin and said one knuckle for acting as a vertical thrust bearing when the door is mounted to the leaf associated with the lower of the two knuckles, wherein said hinge pin has a slot extending between the bores of said knuckles for receiving a wire, first conduit means in one said leaf and knuckle for passing a wire from said one leaf to said slot, and second conduit means in the other said leaf and knuckle for passing a wire from said slot to said other leaf.
Specification