David F Procter
Architects in Salt Lake City, UT

5138807, Aug 18, 1992

Feb 1, 1990

7/473327

Terry L. Daw - Murray UT
David F. Procter - Salt Lake City UT

Daw Technologies, Inc. - Salt Lake City UT

E04C 139, E04B 170

52177

A floor panel having a substantially planar upper tread surface comprises a cast grating having first and second pairs of substantially planar, external sidewalls with upper side edges of the sidewalls approximately coinciding with the upper tread surface; a plurality of substantially planar ribs extending from the first pair of opposite sidewalls across the frame, and being spaced apart from each other; a plurality of substantially planar cross ribs extending from the second pair of opposite sidewalls across the frame, and further being spaced apart from each other and forming common intersections with the ribs; wherein the ribs and cross ribs form subdomains between intersections of the respective ribs and cross ribs, the ribs and cross ribs contained within one of said subdomains being left out to form an opening through the floor panel which is larger in size than other openings representing smaller subdomains within the floor panel, said larger opening including a perimeter notch formed at an upper edge of the ribs and cross ribs which form the larger opening, said notch facing inward toward that opening; and a plate having a peripheral edge that fits into the perimeter notch of the larger opening created by absence of the ribs and cross ribs of the subdomain and including means for removal of the plate to facilitate installation of a utility box.

5402617, Apr 4, 1995

Aug 18, 1992

7/932079

Terry L. Daw - Murray UT
David F. Procter - Salt Lake City UT

Daw Technologies, Inc. - Salt Lake City UT

E04C 238, E04B 548, E04F 1506

52630

A floor panel having a substantially planar upper tread surface comprises a cast grating having first and second pairs of substantially planar, external sidewalls with upper side edges of the sidewalls approximately coinciding with the upper tread surface; a pair of substantially planar slats spaced closely adjacent to each other and extending from the first pair of opposite sidewalls across the frame, with the central, longitudinal planes of the slats being oriented substantially perpendicular to the upper tread surface of the floor panel and substantially parallel to each other, and further with upper side edges of the slats approximately coinciding with the upper tread surface, wherein the spacing between the slats is such that a fastener can be frictionally engaged between the slats for secure attachment to the slats; a plurality of substantially planar ribs extending from the first pair of opposite sidewalls across the frame, and being spaced apart from each other and from the pair of slats; and a plurality of substantially planar cross ribs extending from the second pair of opposite sidewalls across the frame, and further being spaced apart from each other and forming common intersections with the ribs and said pair of slats.

5180331, Jan 19, 1993

Feb 1, 1990

7/473393

Terry L. Daw - Salt Lake City UT
David F. Procter - Salt Lake City UT
Kevin D. Moss - Bountiful UT

Daw Technologies, Inc. - Salt Lake City UT

F24F 1310

454187

A device attachable to a suspended floor member (i) for collecting materials which fall through grid openings in the floor member and (ii) for controlling the rate of airflow through the grid openings in an adjustable manner. The device includes a spill container for positioning under the grid openings of the floor member in a coordinated position such that a venting path is provided for permitting airflow past the spill container from above the floor member while retaining the capacity to collect liquids and particulate matter flowing through the grid openings. Adjustable dampening structure is coupled with the spill member to provide selection of differing vent openings to control rate of airflow through the structure.

5140792, Aug 25, 1992

Jul 11, 1990

7/550970

Terry L. Daw - Salt Lake City UT
David F. Procter - Salt Lake City UT

Daw Technologies, Inc. - Salt Lake City UT

E04B 282

522381

A modular wall system including a plurality of wall panels removably attached between a floor and a ceiling by a head track assembly and a floor track assembly respectively. The wall panels include a core material covered on each face by a thin metal skin and are of sufficient strength and rigidity to allow their placement between the head and floor track assemblies without the requirement of stud members or the like. The head track and the floor track assemblies both comprise gasket elements which prevent the passage of microcontamination around the panel members, and the side surfaces of each panel member contains a gasket which abuts and seals against an adjacent panel member to prevent the flow of microcontaminants around the sides of the panel. The floor track assembly also comprises a fastening member which securely holds the bottom of the wall panel to prevent relative movement therewith. The floor track assembly also includes alignment screws which allow the floor track to be leveled, regardless of the unevenness of the floor it is placed upon, thereby insuring automatic alignment of the well panels when placed thereon and insuring complete sealing between adjacently mounted panels.

5010702, Apr 30, 1991

May 30, 1989

7/358876

Terry L. Daw - Salt Lake City UT
David F. Procter - Salt Lake City UT

Daw Technologies, Inc. - Salt Lake City UT

E04B 288, E04H 500

52241

A modular wall system including a plurality of wall panels removably attached between a floor and a ceiling by a head track assembly and a floor track assembly respectively. The wall panels include a core material covered on each face by a thin metal skin and are of sufficient strength and rigidity to allow their placement between the head and floor track assemblies without the requirement of stud members or the like. The head track and the floor track assemblies both comprise gasket elements which prevent the passage of microcontamination around the panel members, and the side surfaces of each panel member contains a gasket which abuts and seals against an adjacent panel member to prevent the flow of microcontaminants around the sides of the panel. The floor track assembly also comprises a fastening member which securely holds the bottom of the wall panel to prevent relative movement therewith. The floor track assembly also includes alignment screws which allow the floor track to be leveled, regardless of the unevenness of the floor it is placed upon, thereby insuring automatic alignment of the well panels when placed thereon and insuring complete sealing between adjacently mounted panels.