US 11,713,581 B2
Drywall joint tool
Marcus Allen Abel, Kansas City, MO (US); and Gary R. Hannah, Shawnee, KS (US)
Assigned to Marcus Allen Abel, Kansas City, MO (US)
Filed by Abel SeamPro, LLC, Cape Girardeau, MO (US)
Filed on Aug. 21, 2020, as Appl. No. 17/28.
Claims priority of provisional application 62/890,722, filed on Aug. 23, 2019.
Prior Publication US 2021/0054635 A1, Feb. 25, 2021
Int. Cl. E04F 21/165 (2006.01); E04F 21/00 (2006.01); B25F 5/00 (2006.01); B23B 45/02 (2006.01); B23B 45/00 (2006.01)
CPC E04F 21/165 (2013.01) [B25F 5/001 (2013.01); E04F 21/0046 (2013.01); B23B 45/008 (2013.01); B23B 45/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A drywall joint tool for compressing a cut edge of a gypsum board panel with a panel lower surface, which drywall joint tool includes:
a housing with upper and lower surfaces and a housing interior;
a drivetrain including an input driveshaft extending from the upper surface of said housing and a pair of drive rollers depending downwardly from said lower surface of said housing;
said drivetrain configured for reducing rotational speeds at said pair of drive rollers from an input driveshaft speed and increasing torque force from said input driveshaft to said pair of drive rollers;
a panel edge constraint depending downwardly from said lower surface of said housing and configured for engagement by said gypsum board panel along said cut edge thereof;
said panel edge constraint and said pair of drive rollers forming a slot therebetween with a minimum width corresponding to a compressed thickness of said gypsum board panel along said cut edge thereof; and
said drywall joint tool being configured for simultaneously traversing and compressing said gypsum board panel in said slot along said cut edge;
said panel edge constraint comprising a guide fence depending downwardly from said panel lower surface, said guide fence including a guide wall positioned in spaced relation from said pair of drive rollers;
said guide fence is adjustably mounted on said lower surface of said housing and configured for adjusting a width of said slot;
said panel edge constraint comprises an additional pair of rollers depending downwardly from said lower surface of said housing;
said drivetrain drives both of said pair of drove rollers and said additional pair of rollers; and
said drivetrain comprises multiple, drivingly interconnected gears.