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. 06, 1988
Filed:
Nov. 06, 1987
Louis A Abbagnaro, Silver Spring, MD (US);
Pace Incorporated, Laurel, MD (US);
Abstract
A desoldering method and apparatus for removal of molten solder from joined parts including a desoldering tool; a vacuum pump connected to the desoldering tool for applying vacuum thereto for removing the solder; a motor for energizing the pump; and circuitry for providing an initial, relatively high, voltage to the motor and for thereafter providing a relatively lower voltage to the motor so that, during the application of the high voltage to the motor, a relatively large pulse of the vacuum is applied to the joined parts to (a) effect removal of substantially all of the molten solder into the desoldering tool and (b) initiate cooldown of the parts and, during the application of the lower voltage to the motor, a relatively lower vacuum is continuously applied to maintain the cooldown of the parts.