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:
Jun. 18, 1985
Filed:
Sep. 16, 1983
Applicant:
Inventor:
Eduard J Huydts, Dusseldorf, DE;
Assignee:
G. Siempelkamp GmbH & Co., Krefeld, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
100259 ; 100289 ;
Abstract
A spindle press in which a lubricant is displaced by relative movement of the threaded spindle and the ram displaced thereby, at least on a return stroke of the ram effected by a fluid operated jack. According to the invention, the press is provided with a control piston which blocks the lubricant flow as the ram approaches a deadpoint position at the end of its return stroke so as to enable the lubricant trapped between the spindle and the ram to damp the end of the return stroke.