Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Panel hangers – travelers and/or tracks – Track and bracket
Reexamination Certificate
2000-01-14
2001-12-04
Knight, Anthony (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Panel hangers, travelers and/or tracks
Track and bracket
C016S08740R, C049S409000, C248S231810
Reexamination Certificate
active
06324727
ABSTRACT:
This invention relates to dual or twin sliding door assemblies and more particularly to the installation of such assemblies.
BACKGROUND OF THE INVENTION
Door assemblies of the type herein contemplated typically include a one-piece track structure which includes a pair of parallel tracks integrally interconnected by a bridge section. This one-piece construction insures that, when the assembly is finally installed, the two doors will by-pass one another in parallel relationship. It is important in the installation of the assembly to precisely establish the parallel relationship between the two tracks.
It is often the practice of door assembly suppliers to supply a wide range of door assemblies including pocket door and bi-fold installations. In these installations, a single track is utilized. It is also desirable to provide a carriage assembly for all of the installations which will cooperate with the same track configuration.
It is desirable not to have to inventory two separate track profiles for both the dual sliding installation and the pocket/bi-fold installations.
Applicant has found that it becomes a practical matter to reduce the inventories to a single track structure provided some system is provided to the installer to simplify and insure accurate installation of two separate tracks in exact parallel relation to one another.
BRIEF DESCRIPTION OF THE PRESENT INVENTION
An object of the present invention is to solve the inventory problem expressed above. In accordance with the principles of the present invention, this objective is obtained by providing a system for installing a pair of separate door guiding tracks in a predetermined parallel relation below and to an overhead structure of a door opening comprising applying a series of track spacing members to a pair of separate tracks while the tracks are disposed in predetermined parallel relation at longitudinally spaced positions along the tracks so as to retain the tracks in said predetermined parallel relation, fixedly securing the tracks while retained in predetermined parallel relation by the series of spacing members below and to the overhead structure of the door opening, and moving each track spacing member downwardly with respect to said pair of tracks after installation to remove the series of track spacing members from the tracks.
Another object of the present invention is to provide an apparatus for use in installing a pair of elongated tracks in fixedly mounted parallel relation below overhead structure of a door opening, each of the tracks including a central wall constructed and arranged when installed to extend horizontally in fixed relation below the overhead structure of the door opening, a pair of end walls constructed and arranged when installed to extend vertically downwardly from opposite end edges of the central wall, and elongated laterally spaced wheel supporting walls constructed and arranged when installed to extend inwardly toward one another from lower edges of the end walls in vertically spaced relation below the central wall. The apparatus comprises a series of track spacing members constructed and arranged to be removably attached to the pair of tracks in longitudinally spaced relation in operative positions so as to retain the pair of tracks in a predetermined spaced parallel relation with respect to one another during installation. Each of the track spacing members includes structure constructed and arranged to be engaged between the spaced end walls of the pair of tracks when the spacing member is in the operative position and structure constructed and arranged to be disposed between the end walls of each track in engaged relation between the wheel supporting walls thereof when the spacing member is in the operative position. The structure of each of the track spacing members further is constructed and arranged to enable the track spacing member to be moved into the operative position with respect to the pair of tracks in a direction toward the center walls thereof and to be removed from the operative position with respect to the tracks by a downward movement in a direction away from the central walls thereof after installation.
REFERENCES:
patent: 1422473 (1922-07-01), Phillips
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patent: 2796626 (1957-06-01), Gussack
patent: 2865043 (1958-12-01), Cox
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patent: 3201874 (1965-08-01), Christy
patent: 3458184 (1969-07-01), Schlosser
patent: 3494042 (1970-02-01), Engholm
patent: 4333286 (1982-06-01), Weinar
patent: 5031886 (1991-07-01), Sosebee
patent: 5148605 (1992-09-01), Julia
patent: 5379553 (1995-01-01), Kimura et al.
patent: 5407182 (1995-04-01), Hartley
patent: 5490334 (1996-02-01), Payne
patent: 5628119 (1997-05-01), Bingham et al.
patent: 5785306 (1998-07-01), Wilson et al.
patent: 5913546 (1999-06-01), Kuchenbrod et al.
patent: 2220966 (1992-06-01), None
patent: 0487956A1 (1992-06-01), None
Ortoleva Joseph
Pelletier Thomas
Perrett Susanna
Knight Anthony
Pillsbury & Winthrop LLP
The Stanley Works
Williams Mark
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