United States Gypsum Company

William Rago

James Wittbold

Chris C Lee

Alfred C Li

Weixin David Song

Cesar Chan

Ronald Edward Schenck

Ronald E Schenck

Curt Loring

Christopher Robert Nelson

Charles W Cochran

Brad Todd

Curtis B Loring

Abraham M Underkofler

Chris Lee Nelson

Frederick Thomas Jones

William A Frank

David D Pelot

Naveen Punati

Samar Emami

Luis Carrazco

A gypsum slurry modifier device is provided for use with a gypsum mixer outlet boot having at least one tubular outlet leg, and includes a support bracket mountable to the outlet boot; at least one clamp member associated with the support bracket and constructed and arranged for engaging the at least one tubular outlet leg of the outlet boot. Each at least one clamp member is constructed and arranged for exerting a vertical compression force on the associated at least one tubular outlet leg for expanding a slurry outlet flow from the at least one leg laterally beyond an exterior surface of the leg.

Gypsum slurry application modifier

A joint tape embedding apparatus configured to determine the bonding and/or 'feel' of embedding joint tape into a dry wall or wall board joint using a particular joint compound. The joint embedding apparatus is configured to allow the same user or different users to accurately repeat the determination of the bonding and/or 'feel' attributes of the joint compound.

Joint tape embedding apparatus, system, and method

A multi-piece mold for use in a method for making a slurry distributor includes a plurality of mold segments adapted to be removably secured together. The mold segments are configured such that, when the mold segments are assembled together, the assembled mold segments define a substantially continuous exterior surface adapted to be a negative image of an interior flow region of a slurry distributor molded thereupon. Each mold segment has a maximum cross-sectional area in a plane substantially transverse to a direction of movement of the mold segment along a removal path out of a respective opening of the molded slurry distributor. The maximum cross-sectional area of each mold segment is up to about 150% of the smallest area of the interior flow region of the molded slurry distributor through which the mold segment traverses when moving along the respective removal path.

Multi-piece mold and method of making slurry distributor

A flow splitter can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit can include an inlet end and a junction end. The inlet conduit is disposed along a main flow axis extending between the inlet end and the junction end. The inlet end defines an inlet opening. The junction end defines first and second junction openings. The first junction opening is disposed in spaced relationship to the second junction opening. The junction portion is disposed at the junction end of the inlet conduit between the first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to the main flow axis. The flow splitter can be placed in fluid communication with a cementitious slurry mixer and a slurry distributor with the flow splitter disposed therebetween.

Flow splitter for slurry distribution system

A slurry distribution system can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first feed inlet and a second feed inlet disposed in spaced relationship thereto. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The slurry distribution system can be placed in fluid communication with a gypsum slurry mixer adapted to agitate water and calcined gypsum to form an aqueous calcined gypsum slurry.

Slurry distributor, system and method for using same

A cementitious slurry mixing and dispensing system includes a slurry mixer that agitates and forms aqueous cementitious slurry, a discharge conduit in communication with the mixer and forming an interior surface defining a slurry flow path to convey the slurry therethrough to an outlet, a distribution mat disposed proximally to the outlet, a vibrating plate supporting the distribution mat, an overhead bracing system from which the vibrating plate is suspended, and a plurality of support members coupled between the overhead bracing system and the vibrating plate. The vibrating plate is adapted to impart vibrational forces on the distribution mat to promote movement of the aqueous slurry. Each support member includes a rod, a hollow coupling member, and at least one resilient bushing assembly adapted to dampen the vibrational forces exerted by the vibrating plate, thereby isolating the rod and the overhead bracing system from the vibrational forces.

Slurry distribution system with vibration isolation

A bench top board scoring device is provided, having a frame having a first end and an opposite second end, a work area defined between the first and second ends, each end having at least one leg configured for contacting a substrate. A track is connected to the frame and extends between the first end and the second end, a carriage is slidably mounted to the track for travel between the first end and the second end, and an arm has an upper surface, a pivot end pivotally connected to the carriage, and an opposite knife mount end. A knife blade is mounted to the knife mount end. Additionally, the present device is constructed and arranged so that as the carriage is moved from the first end to the second end, wallboard samples placed in the work area and contacted by the knife blade receive a constant scoring force.

Bench top board scoring device

A slurry distributor includes a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit includes an entry segment with a feed inlet and a feed entry outlet in fluid communication therewith and extending along a first feed flow axis. The feed conduit includes a shaped duct having a bulb portion in fluid communication with the feed entry outlet. The feed conduit includes a transition segment in fluid communication with the bulb portion and extending along a second feed flow axis in non-parallel relationship with the first feed flow axis. The bulb portion has an area of expansion with a cross-sectional flow area that is greater than a cross-sectional flow area of an adjacent area upstream from the area of expansion. The shaped duct has a convex interior surface in confronting relationship with the feed entry outlet of the entry segment.

Slurry distributor, system, and method for using same

A cementitious slurry mixing and dispensing system includes a mixer, a discharge conduit, and a pulser assembly. The discharge conduit is in fluid communication with the mixer. The pulser assembly is adapted to periodically compress a portion of the discharge conduit. The pulser assembly can include a compression member adapted to contactingly engage the portion of the discharge conduit and a drive mechanism adapted to selectively move the compression member into compressing engagement with the discharge conduit such that the part of the interior wall surface underlying the compressed portion is flexed.

Cementitious slurry mixing and dispensing system with pulser assembly and method for using same

A slurry distributor can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first and second feed inlets disposed in spaced relationship to each other. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis. The first and second feed inlets each has an opening with a cross-sectional area. The entry portion of the distribution conduit has an opening with a cross-sectional area which is greater than the sum of the cross-sectional areas of the openings of the first and second feed inlets. The slurry distributor can be placed in fluid communication with a gypsum slurry mixer.

A slurry distributor can include a distribution conduit and a profiling mechanism. The distribution conduit extends generally along a longitudinal axis and includes an entry portion and a distribution outlet in fluid communication with the entry portion. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The distribution outlet includes an outlet opening having a width, along the transverse axis, and a height, along a vertical axis mutually perpendicular to the longitudinal axis and the transverse axis. The profiling mechanism includes a profiling member in contacting relationship with the distribution conduit and movable over a range of travel such that the profiling member is in a range of positions over which it is in increasing compressive engagement with a portion of the distribution conduit adjacent the distribution outlet to vary the shape and/or size of the outlet opening.

Slurry distributor with a profiling mechanism, system, and method for using same

A multi-leg discharge boot can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit includes an entry segment, a transition segment and a heel portion disposed therebetween. The inlet conduit can include an inlet end and a junction end. A junction portion is disposed at the junction end of the inlet conduit between first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to a main flow discharge axis.

Multiple-leg discharge boot for slurry distribution

A handheld wet slurry thickness gauge and method for its use. The thickness gauge includes a distance displacement measurement gauge, a skirt, a platen and support legs. The distance displacement measurement gauge includes a case, a vertical stem, and a vertical spindle. The stem extends from the case. The spindle is slidably supported to move in an axial direction within the stem. The case body has a display for indicating a linear displacement of the spindle. The skirt has a central through-hole for receiving the stem of the gauge and retaining the stem in an upright position. The measuring platen has a platen base and a platen shaft extending upwardly from the platen base and attached to the spindle. The support legs extend downwardly from the skirt. The platen is below the skirt.

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Gurnee, IL, United States of America

William Rago