Carriage for expandable door

Details Carriage for expandable door Carriage for expandable door

1998-07-10

2000-04-25

Gordon, Stephen T.

Freight accommodation on freight carrier

Load bracing means

Bifacial brace

410126, 410127, 410128, 410130, 410132, 410139, B60P 714

Patent

active

060536799

ABSTRACT:
A carriage for rollable suspension of a bulkhead door from a pair of overhead roller tracks, the bulkhead door having an extendable and retractable lading-engaging panel attached thereto, the carriage consisting of a bulkhead door suspension beam; a lading-engaging panel suspension beam; a first pair of rollers; a second pair of roller tracks; the second pair of roller tracks interconnecting the bulkhead door suspension beam and the lading-engaging panel suspension beam so that the lading-engaging panel suspension beam may alternately extend from and retract toward the bulkhead door suspension beam; and left and right pairs of wheels fixedly and rotatably attached to the bulkhead door suspension beam, the left and right pairs of wheels allowing, upon placement of their rolling surfaces in rolling contact with the pair of overhead roller tracks, rolling motion, in unison, of the bulkhead door suspension beam, the lading-engaging panel suspension beam, the first pair of rollers, and the second pair of roller tracks.

REFERENCES:
patent: Re27615 (1973-04-01), Brown, Jr. et al.
patent: 3191546 (1965-06-01), Adler
patent: 3718099 (1973-02-01), Thornton et al.
patent: 3791310 (1974-02-01), Loomis et al.
patent: 3791311 (1974-02-01), Loomis
patent: 3808982 (1974-05-01), Bertram et al.
patent: 3915096 (1975-10-01), Salisbury
patent: 5329858 (1994-07-01), Morris et al.
patent: 5788439 (1998-08-01), Duffell

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