Patents Assigned to Edward J. Ruff Development, Inc.
  • Patent number: 7334530
    Abstract: A stacking table system includes: a first table having a first top, first peripheral support rails extending downwardly from the first top and a plurality of alignment projections extending downwardly from the first peripheral support rails; a second table having a second top, second peripheral support rails extending downwardly from the second top and a plurality of alignment projection receptacles that receive respective alignment projections when the first table is in a stacked position on the second table; and a table hoist having a plurality of cables being selectively attachable to the tables. The first table may be hoisted upwardly by the hoist when the cables are attached to the first table and a stack of the first and second tables may be hoisted upwardly by the hoist when the cables are attached to the second table.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: February 26, 2008
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff
  • Patent number: 7168371
    Abstract: A stacking table system includes: a first table having a first top, first peripheral support rails extending downwardly from the first top and a plurality of alignment projections extending downwardly from the first peripheral support rails; a second table having a second top, second peripheral support rails extending downwardly from the second top and a plurality of alignment projection receptacles that receive respective alignment projections when the first table is in a stacked position on the second table; and a table hoist having a plurality of cables being selectively attachable to the tables. The first table may be hoisted upwardly by the hoist when the cables are attached to the first table and a stack of the first and second tables may be hoisted upwardly by the hoist when the cables are attached to the second table.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: January 30, 2007
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff
  • Patent number: D538088
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: March 13, 2007
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff
  • Patent number: D554923
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: November 13, 2007
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff
  • Patent number: D488653
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: April 20, 2004
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff
  • Patent number: D499589
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: December 14, 2004
    Assignee: Edward J. Ruff Development, Inc.
    Inventor: Edward J. Ruff