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. 06, 1997
Filed:
Nov. 30, 1994
Applicant:
Inventor:
Johannes Schneider, Bunde, DE;
Assignee:
Dewert Antriebs- und Systemtechnik GmbH & Co. KG, Kirchlengern, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66F / ;
U.S. Cl.
CPC ...
254 98 ;
Abstract
A flat lifting device includes an outer and an inner hollow section rail with closed cross section and with a substantially greater width than a thickness. One of the section rails is acted upon by a drive unit having a linearly moveable drive member for shifting the one section rail relative to the other section rail. Opposing surfaces of the outer and inner section rails are preferably provided with meshing profiles which extend in moving direction of the slideable section rail.