1
Douglas J Hamar, Mark S Young: Portable multi-section activity floor and method of manufacture and installation. January 16, 2001: US06173548 (135 worldwide citation)

A floor for a basketball court or the like assembled from a plurality of separate floor sections arranged in staggered rows with each section including a plurality of spaced apart sleepers, a subfloor secured to the sleepers, and a wood strip flooring layer secured to the subfloor. Abutting edges of ...


2
Douglas J Hamar, Mark S Young, Richard E Granroth: Multi-panel activity floor with fixed hinge connections. November 23, 1999: US05987839 (106 worldwide citation)

A portable activity floor comprised of a plurality of separate panels that can be readily and selectively interlocked together into a finalized configuration. Each panel has an underlayment providing a core with spaced stringers fastened to the underside thereof. Elongated finishing strips mounted o ...


3
Douglas J Hamar, Gopal Jayaraman, Richard Granroth, Robert L Whipple, Harold A Evenson, Edward K Hamar: Portable sectional flooring system with post support. Portage Holding, Banner Birch McKie & Beckett, June 16, 1992: US05121579 (12 worldwide citation)

A floor section assembly having a post anchor built into one of the floor panels for use with portable sectionalized flooring suitable for a volleyball court or the like is disclosed. The post anchor includes a base assembly attached to the undersurface of one of the panels and is coupled to a plura ...


4
Douglas J Hamar: Floor system. Warn Burgess & Hoffmann PC, June 4, 2002: US06397543 (12 worldwide citation)

A floor system composed of a finished flooring preferably secured to a subfloor, a plurality of shock absorber members are fixed to the bottom surface of the floor surface at spaced intervals and in which each of the shock absorber members includes an elastomeric base member provided with a cavity w ...


5
Douglas J Hamar: Floor system. Horner Flooring, Reising Ethington Barnes Kisselle Learman & McCulloch P C, April 4, 2000: US06044606 (10 worldwide citation)

A floor system composed of a finished flooring preferably secured to a subfloor, a plurality of shock absorber members are fixed to the bottom surface of the floor surface at spaced intervals and in which each of the shock absorber members includes an elastomeric base member provided with a cavity w ...


6
Douglas J Hamar: Floor system. Warn Hoffmann Miller & LaLone PC, August 23, 2005: US06931808 (9 worldwide citation)

A floor system composed of a finished flooring preferably secured to a subfloor, a plurality of shock absorber members are fixed to the bottom surface of the floor surface at spaced intervals and in which each of the shock absorber members includes an elastomeric base member provided with a cavity w ...


7
Douglas J Hamar, Gopal Jayaraman, Richard Granroth, Robert L Whipple, Harold A Evensen: Portable sectional flooring system with post support. Portage Holding, Banner Birch McKie & Beckett, June 4, 1991: US05020286 (6 worldwide citation)

A floor section assembly having a post anchor built into one of the floor panels for use with portable sectionalized flooring suitable for a volleyball court or the like is disclosed. The post anchor includes a base assembly attached to the undersurface of one of the panels and is coupled to a plura ...


8
Douglas J Hamar: Nailing device. Richard W Hoffmann, Reising Ethington Barnes Kisselle PC, September 2, 2008: US07419078 (5 worldwide citation)

A nailer device having a carriage assembly, a pair of pivotal drive wheels, a nailer assembly and at least one end wheel. The pair of pivotal drive wheels are on the carriage assembly. The at least one end wheel is disposed adjacent an end of the carriage assembly. A drive motor can be associated wi ...


9
Douglas J Hamar, Jerry Milatz: Lighted flooring. Richard W Hoffman, Reising Ethington PC, April 5, 2011: US07918579 (3 worldwide citation)

A floor assembly including a top having at least one transparent or translucent light emitting portion for emitting light is provided. At least one light source is provided for supplying light. The light source is optically connected to the light emitting portion. The assembly may include a light gu ...


10
Douglas J Hamar, Jerry Milatz: Lighted flooring. Reising Ethington PC, July 17, 2012: US08220949 (1 worldwide citation)

A floor assembly including a top having at least one transparent or translucent light emitting portion for emitting light is provided. At least one light source is provided for supplying light. The light source is optically connected to the light emitting portion. The assembly may include a light gu ...



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