IP Library Granted Patent US 7,478,819
Granted Patent B1
US 7,478,819 · App. 12/056,420 · Granted Jan 20, 2009

Forced extension caster assembly

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Quick Facts
Patent No.
US 7,478,819
App. No.
12/056,420
Granted
Jan 20, 2009
Kind
B1
Abstract

A novel caster assembly with a horizontally orientated arm is attached to a base plate of a rack during a travel state and a stored state. A leveling foot with a flat portion and a non-flat portion is inserted through a slot on the arm and a hole on the base plate such that during the travel state, the horizontal orientated arm is in a fully extended position, and during the stored state, the horizontal orientated arm is in a non- extended position.

Claims (4)

1. A method of supporting a rack in a stored state and a travel state, the rack having a base plate, the base plate having a hole and a tube, the method comprising:

sliding a caster assembly having a horizontally oriented arm into the tube, the horizontally oriented arm having a slot;

inserting a leveling foot having a flat portion and a non-flat portion through the slot and the hole such that during the travel state, the horizontally oriented arm is in a fully extended position and the non-flat portion of the foot engages a first end of the slot,

and during the stored state, the horizontally oriented arm is in a non-extended position and the flat portion of the foot is positioned at a second end of the slot.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 10, 2014
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: LENOVO INTERNATIONAL LIMITED
Reel/Frame 034194/0291 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2008
From: BORAAS, MICHAEL; HEGRENES, AARON; KARL, NATHAN; LUND, DAVID
To: INTERNATIONAL BUSINESS MACHINE CORPORATION
Reel/Frame 020711/0244 →