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:
Sep. 06, 1988
Filed:
Oct. 09, 1987
Frederick L Lau, Skokie, IL (US);
Switchcraft, Inc., Chicago, IL (US);
Abstract
A jackfield with front removable jack modules having lamp assemblies. Each jack module includes a printed circuit board having a lamp assembly and a tri-jack extending forwardly therefrom. Conductor pads at the rear of the printed circuit board removably engage contact spring terminals interconnected to lateral busses. One bus provides a voltage and the other provides ground for the lamp assembly. One of the circuit leads is routed through the jack so that when a plug is inserted into the jack, the lamp is lit. The module also has wire wrap lugs extending from the rear, and the wire wraps are disconnected before the module is removed to the front. Apparatus is also provided for retaining the module from forward movement when only the tri-jack is to be removed.