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US 4,926,951 AGranted
Weigh bed
AssigneeSSI Medical Services, Inc.
InventorsWalter L. Carruth, Warren P. Jones, Richard B. Stacy
Life of this patent
Estimating the term…
Abstract
A weigh bed has a rectangular base frame, a rectangular weigh frame mounted above the base frame, a load cell beam mounted on each corner of the weigh frame and a ball connecting each load cell beam to the base frame. Three tie rods connected between the base frame and weigh frame limit horizontal movement of the weigh frame with respect to the base frame.
Claims9
A scale comprising:
- a base,
- a weigh frame mounted above said base,
- four laterally and longitudinally spaced load cell beams fixed at one end to said weigh frame,
- a ball supporting each said beam for rolling movement on said base,
- and means limiting movement of said weigh frame with respect to said base in three axes.
2 more elements
A hospital bed comprising:
- an elongated, rectangular base frame having four corners,
- casters mounted adjacent said four corners to support said base frame above ground,
- a rectangular weigh frame overlying said base frame and substantially coextensive therewith,
- a load cell beam fixed to each corner of said weigh frame and overlying said base frame,
- a ball interposed between each beam and said base frame to provide the sole vertical support of said weigh frame with respect to said base frame,
- and means limiting movement of said weigh frame with respect to said base frame in three perpendicular axes.
3 more elements
Dependencies are inferred from the claim text.