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:
Jul. 16, 1985
Filed:
Apr. 12, 1983
Theodore A Renshaw, North Babylon, NY (US);
Joseph A Curatolo, Jr, Jackson Heights, NY (US);
Albert Sarrantonio, Woodbury, NY (US);
Fairchild Industries, Inc., Chantilly, VA (US);
Abstract
Method and apparatus are provided for use in an ultrasonic vibratory welder for pre-heating the workpieces prior to welding and, thereafter, for continuously monitoring the temperature of the anvil and of the welding tip during subsequent welding operations to insure their temperature remains within a pre-determined range during the entire welding cycle. It has been found that weld characteristics, particularly weld size, shape, configuration and strength are dependent upon the temperature of the anvil and welding tip. Thermostatically controlled resistance heating means are provided in the anvil and/or in the welding tip for pre-heating of the workpieces. Automatic control means, are also provided for alternately heating and cooling the anvil and welding tip during the welding cycle.