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:
Dec. 19, 1989
Filed:
Jul. 25, 1988
Larry G Alexander, Indianapolis, IN (US);
Leads Metal Products, Inc., Indianapolis, IN (US);
Abstract
Apparatus for desoldering, characterized by its suction and pressure effects being achieved by the stroking of a piston in an air cylinder. In the preferred embodiment, the suction effect for drawing in melted solder is forced by a spring, with venting of the pressure previously existing; and the pressure effect for ejecting the melted solder is by the reverse direction stroke of the piston, which not only causes the piston-stroke to pressurize the control tube but to impart energy to the spring for its subsequent suction-stroke operativity. The pressurizing and venting of the air cylinder are controlled by valving which controls the air cylinder's venting and connection to an associated source of air pressure; and the components provide the way by which the advantageous speed differential is obtained as to the suction and ejection effects, the suction being relatively slow for easy and assurance of solder pick-up, but the ejector effect being relatively fast, for sureness of ejection of the solder at the discharge station.