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:
Oct. 24, 1978
Filed:
Jan. 21, 1977
Harry Edwin Featherstone, Wooster, OH (US);
Walter Grant Sniff, Jr, Smithville, OH (US);
Orrville Products, Inc., Orrville, OH (US);
Abstract
Metal parts are spot welded together. To prevent corrosion of the parts a thixotropic, non hardening, corrosion resistant material including a solvent and having a negligible gravity flow at temperatures less than about 400.degree. F to 440.degree. F and forming a heat insulating coherent gel when burnt is used between the plates. The material is known as Anchor Tuflex #23. The parts are clamped and a pressure, higher than a welding pressure that would be used without the material is used to squeeze out the material. The high pressure is continued during welding. After welding continued pressure, is applied during cooling.