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:
May. 12, 1987
Filed:
Jul. 29, 1985
Frank C Scribano, Western Springs, IL (US);
The Machlett Laboratories, Inc., Stamford, CT (US);
Abstract
An X-ray table having a surface disposed in a plane defined by longitudinal and transverse axes and a column extending perpendicularly to such axes. The column includes a plurality of vertical tracks. A carriage is provided supporting a spot film device projecting over the table surface. The carriage comprises a plurality of bearing assemblies, corresponding to the plurality of tracks, for slidably mounting the carriage on the plurality of tracks of the column. Each bearing assembly comprises: a bearing plate mounted about a pivot point to a surface of the carriage; and, a plurality of opposing bearings rotatably mounted to the bearing plate and arranged to engage the corresponding one of the plurality of tracks on the column. Application of lateral force to the bearing plate of a first one of the bearing assemblies pivots the carriage about the pivot point of that bearing plate. Likewise, application of lateral force to the bearing plate of a second one of the bearing assemblies pivotes the carriage about the pivot point of that bearing plate. Thus, with such arrangement, the carriage is gimballed with respect to the column about the bearing assembly pivot points. The pivot points of the first and second bearing assemblies are disposed along the transverse and longitudinal axes, respectively. Hence the carriage, and the spot film device secured thereto, may be pivoted about the carriage with two degrees of freedom to level the spot film device with respect to the table surface along the longitudinal and transverse axes.