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:
Jun. 25, 1991
Filed:
Nov. 22, 1989
Walter Durr, Remchingen, DE;
Axel Kirsch, Filderstadt, DE;
Abstract
An enossal or endosteal implant with a fastening head and fastening arrannt having a metal implant post screwable into a basic structure for snugly fitting a conditionally removable denture with a spacer element provided with a centering collar being inserted into the open end of the basic structure and engageable with a shoulder of an upper edge of the basic structure and an intermediate element having a portion made of an elastic material is characterized by the spacer element being made of metal and having a closed end remote from the fastening head for the denture and being threaded into the basic structure; the intermediate element is insertable in a socket formed by a counterbore at the open end of the spacer element and is provided with a ring shoulder for engaging an upper edge of the spacer element, and the intermediate element has an inner bore whose diameter, in an area facing the fastening head for the denture and remote from the spacer sleeve, is larger than the external diameter of the implant post, which holds the denture with a bearing surface engaging the ring shoulder. In one embodiment, the intermediate element is formed by a core element of a rigid material surrounded by a sleeve element of an elastic, plastic material.