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:
Nov. 01, 1988
Filed:
Sep. 21, 1987
Howard Schlatter, Rochester Hills, MI (US);
Lawrence A Wisne, Farmington Hills, MI (US);
Progressive Tool & Industries Company, Southfield, MI (US);
Abstract
A drive for an article transfer device in which a carrier is driven into contact with a stationary part to lift the part upwardly from a stationary support employs a drive motor which provides a constant speed input during a lifting cycle. The constant speed input is transmitted to the carrier by a motion transmission mechanism which drives the carrier in an elevating stroke in which the velocity of the carrier is momentarily reduced to zero at the instant the carrier contacts the part to avoid an undesirable impact between the carrier and part. The mechanism may be set up to accommodate contacting the part at a predetermined point other than the midpoint of the carrier stroke and includes a mechanism which operates at a maximum mechanical advantage at the time of part contact.