Patents Assigned to H. H. Robertson Company
  • Patent number: 4962622
    Abstract: An improved cold formed, sheet metal profiled building unit and method of making the same are disclosed. The building unit incorporates at least one longitudinal stiffening rib in a longitudinal flat region of the type having a tendency to buckle when subjected to compressive forces. The longitudinal stiffening rib is formed not by drawing-in sheet metal as in current roll forming practices, but, instead, by stretching a segment of the sheet metal. Each longitudinal rib has a profile width, as measured along the centerline of the rib, which is greater than the linear of the sheet metal segment from which it was stretched-in. Roll forming machines incorporating the principles of this invention utilize fewer roll stands than do roll forming machines incorporating the principles of current roll forming practices.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: October 16, 1990
    Assignee: H. H. Robertson Company
    Inventors: Raymond E. Albrecht, Charles R. Gray
  • Patent number: 4850162
    Abstract: An elevated access floor, or pedestal floor wherein a two-cell duct element spans one or more support pedestals is disclosed. The duct element distributes two different services, such as high and low voltage wiring to various locations in the access floor area. A feeder unit having removable covers extends transversely of the duct element and serves to feed the wiring of the two services from central locations, such as a telephone closet and a power closet, to the duct elements.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: July 25, 1989
    Assignee: H. H. Robertson Company
    Inventor: Raymond E. Albrecht
  • Patent number: 4805358
    Abstract: 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 supported by the opposite sides. Each side comprises a side rail, a base member, and horizontally displaceable adjustment means, in the form of wedge means, for vertically displacing the side rail relative to the base member. The side rail, the base member and the adjustment means have a combined height of about one inch (2.54 cm) and are capable of a vertical adjustment of one-half inch (1.27 cm).
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: February 21, 1989
    Assignee: H. H. Robertson Company
    Inventor: Frank W. Fork
  • Patent number: 4728750
    Abstract: An improved receptacle support assembly is provided for use within a chamber of a preset access housing which provides access to three services including power, telephone and computer services. The assembly can accommodate four duplex receptacles providing eight outlets or two triplex and two duplex receptacles providing ten outlets. The receptacles are supported horizontally for easy connection and disconnection of electrical plugs.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: March 1, 1988
    Assignee: H. H. Robertson Company
    Inventor: John L. Teslovich
  • Patent number: 4656798
    Abstract: A closure member for an electrical activating assembly of the type to be installed in an electrical wire distributing floor structure. The closure member has an access port assembly supported for movement between an open position wherein wires may egress from the closure member, and a closed position. The access port assembly incorporates a resilient filler strip formed from heat resistant material. The filler strip is pre-slit to provide effective sealing around egressing wires independent of the diameter of the wire.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: April 14, 1987
    Assignee: H. H. Robertson Company
    Inventor: John O. Hazen
  • Patent number: 4656795
    Abstract: A floor panel for use in elevated floor assemblies, having a unique flexible edge construction including a relatively thin, flexible strip extending around the entire perimeter of the panel and projecting laterally outwardly from contiguous side and end faces of the panel. Plural panels supported on spaced pedestals are disposed in side-by-side relation with adjacent side and end faces spaced from each other but with adjacent flexible strips in edge-overlapped relation.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: April 14, 1987
    Assignee: H. H. Robertson Company
    Inventors: Raymond E. Albrecht, Rodney W. Gartner, John O. Hazen, Robert G. Lindner
  • Patent number: 4621472
    Abstract: Skylight structures or the like wherein the supporting and supported structural members defining the metal framework including flange formations upon which glass panels are secured are provided with longitudinally extending drainage channel formations and wherein the open ends of the drainage channel formations of the supported structural members intersect and overlap the drainage channel formations of the supporting structural members to the extent that water collected therein is discharged into the drainage channel formations of the supporting structural members at a point remote from the intersections thereof and wherein the structural members are interconnected by displaceable clamping means carried by said overlapping ends including a clip embracing same from below in the region of overlap and upon displacement upwardly engage the flange formations of the suporting structural members from below.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: November 11, 1986
    Assignee: H. H. Robertson Company
    Inventor: Werner Kloke
  • Patent number: 4603523
    Abstract: A preset access housing for use with metal cellular flooring units of the type placed in building floors, and which provide generally parallel enclosed cells separated by troughs. The housing spans between the confronting webs of two of the cells and has side walls depending into the region between the cells to enclose a trough space. A connection formed in part from portions of the end walls of the housing and in part by slots in the generally vertically webs of the cells, connects the housing to the flooring unit. Deflectible means associated with the side walls of the housing, engage a surface of the flooring unit in the region between the cells, are deflected, and urge the housing upwardly relative to the flooring unit thereby to retain the connection between the housing and the flooring unit.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: August 5, 1986
    Assignee: H. H. Robertson Company
    Inventors: Raymond E. Albrecht, Paul L. Haskins
  • Patent number: 4594826
    Abstract: 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 element sized to span the trough at a selected upper point of said channels and having edge means adapted to abut said channels, and at least one longitudinal separator member depending from and coextensive in length with said cover element to define at least two cell raceway.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: June 17, 1986
    Assignee: H. H. Robertson Company
    Inventor: Charles R. Gray
  • Patent number: 4558544
    Abstract: An adjustable pedestal adapted to support individually removable panel members in accurate, edge-aligned relation and in a common horizontal, that is level plane. The pedestal includes a head assembly supported on an upper end of a support. The head assembly includes a head member having a generally flat upper surface which is adjustable vertically, rotationally and laterally of the support rod. Abutment means adjustable along the support rod, is engaged by the head member and establishes a position of the head member wherein the upper surface resides in the horizontal plane. Clamping means clamps the head member to the support rod. Radially extending lugs extend above the upper surface of the head member. The arrangement is such that an adjacent pair of lugs of one pedestal cooperates with adjacent pairs of lugs from adjacent pedestals to define a panel supporting surface which is horizontal and which coincides with said horizontal plane.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: December 17, 1985
    Assignee: H. H. Robertson Company
    Inventors: Raymond E. Albrecht, Robert G. Lindner
  • Patent number: 4558548
    Abstract: A non-displaceable, self-righting shim for use in any application where critical alignment is required of adjacent vertical elements. The shim presents an elongated central opening including a large upper portion and a small lower portion, and a slot having an exit end communicating with the central opening and an entrance end at the perimeter edge of the shim. The weight distribution of the shim relative to the large upper portion is such that the shim will hang in a normal upright position with the small lower portion and the slot below the large upper portion. The arrangement assures positive placement of the shim once installed; avoids loosening and fall-off of the shim which may be caused by thermal expansion and contraction of the shimmed element and/or by vibrations associated with the adjacent vertical elements; and eliminates the need for holding the shim in position while securing the fastener.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: December 17, 1985
    Assignee: H. H. Robertson Company
    Inventor: Richard A. Hieger
  • Patent number: 4554771
    Abstract: A cellular decking unit, for field-assembly or factory-assembly, useful in the construction of a wire distributing floor structure. The cellular decking unit is assembled from upper and lower metal sheets arranged so as to provide laterally open channels. The channels are adapted to receive and to be closed by side portions of the adjacent fluted decking units thereby to form lateral enclosed raceways.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: November 26, 1985
    Assignee: H. H. Robertson Company
    Inventors: Ashok K. Marwah, Charles H. Norris, Jr.
  • Patent number: 4486998
    Abstract: A concealed fastener arrangement useful in attaching a succession of profiled panel members to spaced-apart structural elements of a building framework to provide roof or wall structures. The arrangement includes repeating series of fixed and movable clip means secured to the structural elements in predetermined pattern. Adjacent ones of the fixed clip means are spaced-apart at a selected modular width corresponding to the desired panel coverage width. Plural movable clip means are presented between adjacent fixed clip means, and are capable of limited movement longitudinally of the structural elements. When assembled in side-by-side overlapped relation, the panel members present downwardly opening, longitudinal ribs including joint ribs formed by overlapping the complimentary male and female partial ribs of adjacent panel members. The fixed and movable clip means are received within the longitudinal ribs and connect the panel members to the structural elements.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: December 11, 1984
    Assignee: H. H. Robertson Company
    Inventor: James G. Hague
  • Patent number: 4467582
    Abstract: A joint retention clip for use in a rib-like joint formed by overlapping male and female partial ribs of adjacent panel members in a roof or wall structure. The joint retention clip maintains the partial ribs of the rib-like joint in assembled relation in the region between adjacent panel supports. The joint retention clip resides entirely on the protected side of a sealant bead and is thus not subject to corrosion; and exhibits improved resistance to applied vertical loads.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: August 28, 1984
    Assignee: H. H. Robertson Company
    Inventor: James G. Hague
  • Patent number: 4466224
    Abstract: A two-piece concealed-type clip assembly useful in attaching profiled panel members to structural elements to provide an insulated roof or wall structure incorporating blanket or roll-type insulation. The clip assembly includes a U-shaped base clip having a relatively narrow bottom wall, upstanding sidewalls, and integral clip-stabilizing portions, one extending laterally outwardly from each sidewall; and flexible connecting means such as a top clip, carried at the upper ends of the sidewalls for connecting a rib of a panel member to a structural element. Only a minor amount of insulation is fully compressed at each clip assembly site whereby the structure exhibits an improved thermal efficiency.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: August 21, 1984
    Assignee: H. H. Robertson Company
    Inventor: James G. Hague
  • Patent number: 4465897
    Abstract: A metal cellular flooring unit presents at least two enclosed cells separated by a lengthwise trough. A distinct partitioning element substantially coextensive in length with the first cell, divides the first cell into first and second subcells. A set of access openings is provided including distinct crest and web access openings in the crest and one web of the first cell providing access solely to the first and second subcells, respectively; and a web access opening in that web of the second cell opposite to web access opening of the first cell, providing access to the second cell. The flooring unit is thereby adapted for separate distribution of the wiring of three different services, such as, computer or like services, telephone and power. Access to all three services is available at each location along the length of the flooring unit at which a set of access openings is provided.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: August 14, 1984
    Assignee: H. H. Robertson Company
    Inventor: Raymond E. Albrecht
  • Patent number: 4400922
    Abstract: A panel mounting clip assembly is adapted to connect the intermediate longitudinal ribs of panel members and the rib-like joints between adjacent ones of the panel members to panel support members. The clip assembly comprises a base member that is fastened to the panel support member and a top clip that is frictionally engaged with interior surfaces of the ribs or joints to accommodate thermal expansion and contraction of the panels. The top clip-to-base member connection provides for movement of the top clip transversely of the length of the panel member thereby to accommodate rib-to-clip and joint-to-clip misalignments. The top clip-to-base member connection also provides for limited universal movement of the top clip relative to the base member to accommodate any inherent minor distortions in the profile of the intermediate ribs or the panel elements of the rib-like joint. A roof or wall structure utilizing the panel mounting clip assembly is described.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: August 30, 1983
    Assignee: H. H. Robertson Company
    Inventor: Keith D. Boyer
  • Patent number: 4335269
    Abstract: An insert for an underfloor electrical wiring distribution system of the type incorporating a distribution unit presenting alternating cells and troughs and capping means enclosing one of the troughs to provide an intermediate cell having at least one trough portion accessible from the upper surface of the floor. The insert includes an isolator device having a generally U-shaped configuration including spaced sidewalls and a connecting front wall. The isolator device is installed in the trough portion to provide an isolated chamber. Connecting means in the form of cooperating tabs and apertures positively secures the device to the distribution unit. A partition plate may be installed with a lower portion thereof retained by the device and with an upper portion thereof extending above the isolator device.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: June 15, 1982
    Assignee: H. H. Robertson Company
    Inventor: Paul L. Haskins
  • Patent number: 4324078
    Abstract: Apparatus for fireproofing an underfloor access chamber of an electrical wiring distributing floor structure. The access chamber is formed between a cellular unit and a covering layer of concrete. The access chamber has at least one inlet opening communicating with a raceway presented by the cellular unit; and an outlet opening providing access to the chamber from the space above the concrete. An unobtrusive strip of fire-resistant material, disposed within the chamber, covers substantially entirely all of the bottom portion and obstructs the inlet opening. The strip shields the upper portion of the chamber from heat transfer by convection and by radiation. Slit means formed in the strip allows passage of wiring without significantly deteriorating obstruction of the inlet opening.
    Type: Grant
    Filed: March 19, 1980
    Date of Patent: April 13, 1982
    Assignee: H. H. Robertson Company
    Inventor: Charles R. Gray
  • Patent number: 4323723
    Abstract: A dual service outlet unit provides above-the-surface accessibility to power and to telephone and signal services. The unit includes cover and base members comprising segments of separate metal extrusions. When interfitted, the cover and base members provide separate compartments, one for power wiring and the other for telephone/signal wiring.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: April 6, 1982
    Assignee: H. H. Robertson Company
    Inventors: Frank W. Fork, Charles J. Kelly