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.

Date of Patent:
Dec. 24, 1985

Filed:

Jun. 04, 1984
Applicant:
Inventors:

David E Young, Watlington, GB;

David H Boyes, Childwall, GB;

Assignee:

Protectair Limited, Stokenchurch, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128 88 ;
Abstract

The head plate has a rectangular body with a central portion. The connecting portion of the flexible hinge part is integral with the central portion or the central portion is provided with a recess or slot into which the connecting portion is received. The upper and lower surfaces of the central portion of the body are substantially continuous and uninterrupted so as to provide maximum surface area for bonding to the casting material layers. The upper and lower surfaces may be provided with teeth or splines to increase the area of the bonding surfaces. In one embodiment, the head plate is provided with parallel spaced grooves on either side of the central portion to permit the head plate to move accurately to conform to the contours of the body of the patient.


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