IP Library Granted Patent US 7,540,509
Granted Patent B1
US 7,540,509 · App. 12/273,941 · Granted Jun 2, 2009

Forced extension caster assembly

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Quick Facts
Patent No.
US 7,540,509
App. No.
12/273,941
Granted
Jun 2, 2009
Kind
B1
Abstract

A 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 system for 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 system comprising:

a caster assembly having a horizontally orientated arm, wherein the caster assembly is slid into the tube, the horizontally orientated arm having a slot;

a leveling foot having a flat portion and a non-flat portion inserted through the slot and the hole such that during the travel state, the horizontally orientated 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 orientated 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 Nov 19, 2008
From: BORAAS, MICHAEL; HEGRENES, AARON; KARL, NATHAN; LUND, DAVID
To: INTERNATIONAL BUSINESS MACHINE CORPORATION
Reel/Frame 021860/0391 →