US Patent No. 9,932,742

METHODS AND APPARATUS FOR DRYWALL TOOLS


Patent No. 9,932,742
Issue Date April 03, 2018
Title Methods And Apparatus For Drywall Tools
Inventorship Scott A. Murray, Lenexa, KS (US)
Assignee Exceptional IP Holdings, LLC

Claim of US Patent No. 9,932,742

1. A mastic flat box applicator, comprising:a housing that has a lateral length from side-to-side greater than its height or width, including;
an elongated front side wall;
an elongated bottom side wall coupled to the front side wall at a first end;
a left side wall coupled to the front side wall and bottom side wall;
a right side wall opposite the left side wall and coupled to the front side wall and bottom side wall; and
an elongated straight back plate opposite the front side wall and coupled to a second end of the bottom side wall at a bottom edge so as to form an approximately perpendicular corner or angle, the elongated straight back plate having a relatively short maximum width or height along a length of the elongated straight back plate compared to the height of the various side walls from where it is connected at the bottom edge to the bottom side wall;
a movable plate disposed in an opening of the housing and abutting at one of its ends the corner or angle formed between the bottom side wall and the back plate as a pivot point and pivoting therein, without being fixedly attached thereto, so as to permit rotational movement of the movable plate about an axis in the corner or angle location;
a plurality of springs coupled to the movable plate and housing so as to place tension on the movable plate and pull it backward toward the back plate;
wherein the elongated straight back plate has a width or height dimension and the plurality of springs are coupled to the back plate and housing so as to allow the movable plate to open sufficiently wide with respect to the housing such that most if not all of any residual mastic or mud may be removed from the inside of the housing without the movable plate disconnecting or rotating out of the mastic flat box when the movable plate is opened or any side wall being removed.