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US 4,974,692 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 weight 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.
Claims1
In a hospital bed having a base frame,
- casters supporting said base frame above ground, a bed,
- a linkage below said bed connected to said bed to support said bed for vertical movement with respect to said base frame,
- power means for raising and lowering said bed,
- and a weigh frame mounted solely by means of load cells to said base frame,
- said linkage and power means being mounted on said weigh frame whereby said linkage and power means support said bed on said weigh frame and said weigh frame is mounted on said base frame only by load cells.
2 more elements
Dependencies are inferred from the claim text.