Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8099912 | Universal floor panel for raised floors An replacement floor panel is provided for a raised floor, and includes a top plate with corner-forming sections and leveling legs for height adjustment. Foot-print-expanding brackets engage the leveling legs for extending their foot print outwardly so that the floo... | 01/24/2012 |
| 7823340 | Air grate for raised floors An air grate for a raised floor includes a top plate with apertures for air flow, and reinforcement ribs for structural support. Pairs of ribs include edge flanges that define a horizontal track. Two flat dampener panels temporarily flex to slip between the edge fla... | 11/02/2010 |
| 7373759 | Cable tray support assembly A cable tray support assembly for a raised floor system which has a plurality of support pedestals and a platform section. Each support pedestal has an elongated stringer member, a first upright channel member, and an opposing second upright channel member. The stri... | 05/20/2008 |
| 6918217 | Raised access floor system A floor panel for a raised access floor system, including a shallow metal pan with a bottom wall and a shallow upwardly-opening compartment. The bottom wall has a plurality of first hollow projections projecting upwardly therefrom, which projections adjacent upper e... | 07/19/2005 |
| 6865851 | Modular floor panels with enclosed wireway channels Rectangular floor panels fit together to define a raised floor capable of accommodating wires/cables in a space within a building. Orthogonally arranged wireways are defined in a molded plastic portion that provides passageways between these wireways, and support po... | 03/15/2005 |
| 6748707 | Utility interface system A utility interface system is disclosed for use in a work environment of the type having a floor system. The floor system may be of a type having an access opening and an upper surface. A compartment is configured within the access opening and has a cover. A module ... | 06/15/2004 |
| 6637165 | Raised floor system and support apparatus An article support apparatus for use with a raised floor system including a plurality of support pedestals, stringer elements and floor panels, the support apparatus includes an article support member configured to support articles thereon; and a mounting... | 10/28/2003 |
| 6449912 | Cable support apparatus An intersection member is provided for use in a raised floor system having a plurality of support pedestals, a plurality of floor panels, and at least one cable support apparatus wherein the intersection member includes a cable support section, and connec... | 09/17/2002 |
| 6427400 | Cable support apparatus A below in floor lengthwise interconnected arrangement of wire baskets serving as a repository of cables for computers and like apparatus, in which opposite sides of the baskets are assembled in depending relation from opposite side supports by inverted U... | 08/06/2002 |
| 6347493 | Raised floor system and support apparatus A support apparatus for use with a raised floor system including a plurality of support pedestals and floor panels, includes a support bracket having first and second end portions being configured and dimensioned to rest upon a portion of a support pedest... | 02/19/2002 |
| 5953870 | Raised floor system and cable support apparatus A raised floor system is provided which includes a plurality of support pedestals; a plurality of floor panels; and a cable support apparatus which includes: a first elongated stringer element defining a horizontally disposed surface which is configured a... | 09/21/1999 |
| 5947430 | Support tripod A tripod has an adjustable top plate that supports an equipment foot. The support legs each comprise paired plates. Interposed between the paired plates is a damping material. The damping material damps the tripod and inhibits resonance from passing throu... | 09/07/1999 |
| 5477649 | Raised floor cable trough system An underfloor cable trough assembly can be employed in new or existing raised floor assemblies having removable floor panels supported at a preselected height above a subfloor by a series of vertical pedestals. Modular cable trough sections are disposed b... | 12/26/1995 |
| 5459968 | Office floor system An office floor system effectively and clearly accommodating complex and varieties of wires and providing a delightful atmosphere for an automated office. The system includes a floor panel. The top surface of the panel has a plurality of bolt adjusting ho... | 10/24/1995 |
| 5440841 | Pedestal module for raised floor and raised floor A floor pedestal module for being assembled together with a multiplicity of other like modules to form a raised floor providing space beneath the module for electrical and/or communications wiring. The module includes a base having an upper surface and op... | 08/15/1995 |
| 5434355 | Floor board assembly A floor board assembly includes four base plates connected around a center plate on the same plane, a cover board covered on the center plate, four lining plates covered on the base plates, four blocking plates connected to the center plate at four sides ... | 07/18/1995 |
| 5400554 | Elevated floor board An elevated floor board comprising an upper and a lower floor board combined together by means of combining posts on the upper board and cylindrical posts on the lower board fitting with the combining posts, a number of hard gasket rings and soft gasket r... | 03/28/1995 |
| 5377461 | Structure for the creation of room dividing walls particularly for operating theatres and the like A structure for the creation of room dividing walls or for the lining of pre-existing walls, particularly for operating theatres and the like, comprising upright members (2), independent of one another, each made integral with the ceiling and the floor by... | 01/03/1995 |
| 5345736 | Carpet system for utility trench and method A system and method for carpeting trench headers, including a cover plate having a support flange on the bottom of one lateral edge with a notch therein and an aligned notch in the other lateral edge, a "L" bracket on the longitudinal edges and the latera... | 09/13/1994 |
| 5274970 | Freestanding partition system A freestanding partition system including upstanding posts for resting on a floor. At least one rail assembly extends between adjacent posts and is spaced from the floor. Saddles hang from the rail assembly and trays are suspended from the saddles to form... | 01/04/1994 |
| 5187907 | Interior panel unit for permitting arrangement of cables and devices on room floor This invention relates to an interior panel unit having a structure in which a plurality of rectangular floor base members to be installed on a foundation floor of a room are connected to each other by base joint members. A plurality of fundamental suppor... | 02/23/1993 |
| 5140791 | Limited access feeder raceway A floor construction includes a metal floor decking having a plurality of parallel multi-cell cellular metal floor raceways each of which includes at least one cell for high voltage power wiring. This one cell has a first wiring opening defined in a top t... | 08/25/1992 |
| 5003737 | Side rail for trenchduct Side rail structure for trenchduct side rail has a lower section and an upper section. The lower section is thin, galvanized sheet steel and the upper section is an aluminum extrusion clamps connect the upper and lower sections so that in a full bottom tr... | 04/02/1991 |
| 4918886 | Raceway system for modular wall panels A modular room divider panel includes a raceway along its lower edge which contains and shields one or more multi-wire power harnesses that are protected from unauthorized access by lockable raceway cover plates. The harness comprises a pair of connector ... | 04/24/1990 |
| 4876834 | Double adjustable duct support A duct support, for infloor electrical distribution systems, which has two separate adjustments within the same structure. One being a large adjustment which can be made quickly without the use of screw threads. The other being a small, precise, screw-thr... | 10/31/1989 |
| 4805358 | Electrical trench assembly A trench assembly usable in floor structures of the type requiring one inch of concrete fill over the crests of metal cellular flooring. The trench assembly includes opposite sides and one or more end-abutted cover plates spanning the distance between and... | 02/21/1989 |
| 4726159 | Composite metal/concrete floor and method A composite metal/concrete floor system and method of installation. The system includes a novel decking profile; snap-in cover plates to provide longitudinal cells for three services; a lateral trench with sheet metal rails and bottom plates; and cooperat... | 02/23/1988 |
| 4683690 | Support device and wall for a cable duct in a cavity lining floor A support device and wall for a cable duct (10) in a cavity lining floor comprises a lift-off double bottom (24) in the direction of the cable duct (10) and a prefabricated blind shuttering (28) on the opposite side. Legs (16), which stand upon the bare c... | 08/04/1987 |
| 4682453 | Floor construction suitable for installation in rooms containing switchgear, computers, and like electrical apparatus, and a method for producing such a floor construction A floor construction, suitably for use in rooms containing electrical switchgear, computers and like apparatus, comprises a plurality of mutually parallel, elongated and longitudinally extending first joists (8,9), and a plurality of mutually parallel, el... | 07/28/1987 |
| 4612746 | Trench duct and cover assembly A subfloor electrical trench duct includes an elongated U-shaped body supported by adjustable support members and has an access cover. The cover is supported by one leg of each of a pair of identical, oppositely disposed L-shaped channels extending axiall... | 09/23/1986 |
| 4594826 | Field-assembled raceway forming member A raceway forming member for use with a cellular or non-cellular flooring unit having at least two longitudinal, spaced-apart, inverted channels connected by a web to define a trough therebetween. The raceway forming member comprises a longitudinal cover ... | 06/17/1986 |
| 4581863 | Roof anchor and support A variety of roof-mounted support apparatuses for supporting ducts, air conditioning units, roof access ladders, and walk-ways, each apparatus including a base plate mounted below the roof insulation, a vertical support member connected to the base plate ... | 04/15/1986 |
| 4517777 | Trenchduct side member extrusion adapted for multiple positioning of cover plate A trenchduct (10) having an adjustable lid-supporting means (30, 40), the trenchduct (10) having either a bottom (14) or bottomless. The construction consists of metal side walls (12) each having an outward extending flange (18), adjuster bolts (22) mount... | 05/21/1985 |
| 4462123 | Fabricated floor drain with large stepped flange for elastomeric trowelled covering A fabricated floor drain for waste reception. The drain has a receptor body having a bottom outlet and generally vertical side walls. A top rim is affixed to the top of the body and a large top flange having a removable screed guide is affixed to the top ... | 07/31/1984 |
| 4404779 | Trenchduct construction having adjustable lid-supporting means A subfloor trenchduct (10) construction in which the side wall members (14, 16) and lid-supporting means (37) are constructed of galvanized steel in order to provide a reduced cross section for the component members and thereby maximizing the availability... | 09/20/1983 |
| 4040755 | Trench duct connector A trench duct system of the type embedded in concrete floors or the like is provided for use in the distribution of electrical power, service and/or communication cables and wiring throughout a building. The system includes a plurality of trench duct sect... | 08/09/1977 |
| 3975559 | Method for producing a business form article A continuous business sheet or paper-like web carries image transfer means which is supported by a thin plastics film or layer of tough flexible carrier material. The film or layer of carrier material is removably attached to the sheet and may be removed ... | 08/17/1976 |
| 3955836 | Outlet for underfloor and concealed installations An outlet for underfloor and concealed installations for insertion into a tubular opening in concrete or flooring finish, which includes a hollow tubular body having its lower outer edge bevelled against which a correspondingly bevelled portion of a split... | 05/11/1976 |
