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:
Apr. 10, 2018
Filed:
Feb. 13, 2017
Columbia Taping Tools, Ltd., Surrey, CA;
Gary Wallace, Surrey, CA;
Elliot St. James, Surrey, CA;
Columbia Taping Tools, Ltd., Surrey, CA;
Abstract
Disclosed is a corner head drywall tool comprising a plurality of roller wings, each with a plurality of face rollers. Also disclosed are alignment rollers intersecting and overlapping the pivot axis of the roller wings. The device may further comprise shafts having an end pivotably attached to each roller wing; wherein each shaft is fitted to slide within a spring tube having a spring therein biasing the shaft toward the associated roller wing. Each spring tube optionally having a median portion pivotably attached to a support block. The device may comprise an adjustment system to adjust the spacing between the ends of the spring tubes opposite the roller wings. The drywall tool may be arranged wherein the adjustment comprises: an adjustment wheel fixed to rotate relative to the support block. Wherein the adjustment wheel rotates one or each spring tube about the relative pivot attachment to the support block.