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:
Aug. 31, 1993
Filed:
Aug. 04, 1992
Applicant:
Inventors:
Mizuho Ninomiya, Maebashi, JP;
Nobuyuki Osawa, Takasaki, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384 45 ;
Abstract
A linear guide apparatus, capable of displaying a well-balanced performance both in the aspects of vibration damping capacity, rigidity, load capacity, shock resistance, and others, and of the follow-up sensitivity to minute and precise operations, is provided by arranging the apparatus with a combined structure of four-point contact and two-point contact ball rolling grooves. Of the upper and lower two ball rolling grooves, one row of the ball rolling grooves is of a four-point contact type and the other row of the ball rolling grooves is of a two-point contact type.