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:
Jul. 16, 1991
Filed:
Jan. 09, 1990
Heikki K Kanerva, Turku, FI;
Erkki H Tammisalo, Turku, FI;
Pasi T Mustalahti, Turku, FI;
Olli J Ojala, Piikkio, FI;
Orion-Yhtyma Oy, Helsinki, FI;
Abstract
A panoramic method for the radiography of the dental arch and jaws, in which method by means of movable radiographing and/or imaged elements, several subsequent exposure sweep sequences are performed so that the moving elements are transferred to a new position betwen the subsequent exposure sequences. In order to achieve a perfectly jointed X-ray picture, the movement of the moving elements is started before the switch-on instant of the X-ray beam in the latter exposure sequence and the starting positions of said elements is selected so as to obtain desired positions and velocities for the elements at the switch-on instant of the X-ray beam. The coincidence of the X-ray beam orientation at the start of the latter exposure sequence with the X-ray beam orientation at the end of the preceding sequence is characterizing to an embodiment of the invention.