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:
Feb. 04, 1997
Filed:
Dec. 26, 1995
Mario Primeau, St-Leonard (Quebec), CA;
Other;
Abstract
A safety lock device for use in releasably locking the head of a butterfly valve. The two part safety lock device comprises first: a cross-sectionally U-shape elongated frame, having an anchoring part at one end and a lateral flange with a number of bores; the anchoring part releasably engages with the valve head for anchoring the U-frame to the valve head; the elongated channel is sized for full engagement by the valve handle; and second: a casing, with an inner passageway, sized for through engagement by the U-frame, and a lateral pocket extension with a number of bores, for engagement by the lateral flange. The casing is characterized by a wedge part, integrally depending therefrom and sized for engagement between the diverging distal end portions of the valve handle and lever. Padlocks releasably interlock the U-frame to the casing by engaging selected pairs of flange bores and pocket bores, thereby concurrently locking the valve lever in its divergent relation to the valve handle.