The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1989
Filed:
May. 11, 1987
Albert Kupferschmidt, Highland Park, IL (US);
Northern Telecom Limited, Montreal, CA;
Abstract
A housing for a telephone line protector comprises a well in which are positioned two spring biased members. A first spring biased member is adjacent to the back end of the well and biased away therefrom. The second spring biased member is axially aligned with and biased away from the first spring biased member. One line conductor is connected to the first spring biased member and the other line conductor is connected to a terminal at the back end. The spring bias of the second spring biased member is stronger than the bias of the first spring biased member. Insertion of a protector module first causes movement of the first spring biased member to contact the terminal at the back end, and then moves the second spring biased member relative to the first spring biased member. The protector module contacts a ground connection at the front end of the well as it is inserted.