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. 14, 1986
Filed:
Oct. 19, 1983
Leon Birch, Stenlose, DK;
Jorgen Hartmann, Glostrup, DK;
Danavox A/S, Copenhagen, DK;
Abstract
A coupling for use in securing a hook-shaped sound part on a behind-the-ear hearing aid consists of a two part connector with a free position in which the parts can be assembled and separated, and a coupled position in which the hook-shaped part can be turned in relation to the hearing aid. A coupling link with a plug-shaped part is inserted in the hearing aid so that the plug-shaped part extends outside the aid and can engage with a coupling hole formed in the hook-shaped part. On the plug-shaped part of the coupling link there is a partly circular groove which can engage with a projecting wall part in the form of a dowel inserted in a hole at right angles to the coupling hole. An O-ring is disposed between the two parts and around the plug-shaped part of the coupling link. When the plug-shaped part of the coupling link engages with the projecting wall of the hook-shaped part, the coupling is in its free position. When the hook-shaped part is turned away from this position, the two parts are locked together. One thus achieves a coupling without a thread and which is easy to operate when the hook-shaped part is to be removed for replacement or cleaning.