William R Elsenpeter from Sioux Falls, SD, age 75

Adapter For Coupling Together Two Subscribers' Lines To A Telephone Test Set
view source
US Patent:

46823450, Jul 21, 1987
Filed:

Dec 10, 1985
Appl. No.:

6/806804
Inventors:

William R. Elsenpeter - Camarillo CA
Assignee:

Harris Corporation - Melbourne FL
International Classification:

H04M 121
H04B 346
US Classification:

379 1
Abstract:

An improved two-line adapter having a pair of hold circuits for respectively placing first and second subscriber telephone lines on hold is disclosed. The individual circuits for placing the subscriber lines on hold include a circuit for continuously indicating the direction of current flow between the tip and ring lines of the individual subscriber lines to which the individual holding circuits are attached which simplifies placing conference calls between the two subscribers' lines and a telephone test set.

William R Elsenpeter