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:
Sep. 04, 2001
Filed:
Dec. 22, 1999
Johannes Hubertus Antonius Van De Rijdt, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a component placement machine, a placement head (,) is driven by a linear motor (,). The stationary part (,) of the motor is attached to the machine frame (,) on which a PCB (,) is attached. The movable part (,) of the motor is connected to a slide (,) on which the placement head (,) is attached. During driving the placement head, reactive forces of the motor generate vibrations in the stationary part (,) of the motor and thus in the machine frame (,). This causes inaccuracies during the placement of components (,) on the PCB (,). To diminish this problem, the reactive forces are intercepted in a separate force frame (,) which is dynamically disconnected from the machine frame (,).