公开(公告)号：US10577811B2

公开(公告)日：2020-03-03

申请号：US15642985

申请日：2017-07-06

Applicant: UNITED STATES GYPSUM COMPANY

Inventor： Robert H. Negri ,  Aaron St. James ,  Elliott St. James ,  Bernie St. James ,  David J. Pekarcik ,  Jeffrey Samuel Zunk ,  Rafael Bury ,  Pamela Hargrove

IPC: E04F21/165 ,  E04F21/06 ,  E04F21/02

Abstract: A prefill tool for finishing wallboard joints is provided for finishing a wallboard joint, and includes a box assembly defining a hopper, having a top wall and a front wall constructed and arranged for engaging the wallboard joint. The front wall partially defines a gate dimensioned for dispensing joint compound stored in the hopper. Also, the gate is located on a skid plate mounted on the front wall, the skid plate having a main portion, and a gate portion partially defining the gate being displaced from a plane defined by the main portion.