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US 5,173,977 AGranted
Load cell mount for hospital weigh bed
AssigneeHill-Rom, Inc.
InventorsW. Layne Carruth, Sohrab Soltani, Warren P. Jones
Life of this patent
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Abstract
A heavy patient support is mounted on a base by load cell beams forming the transducer for a scale to weigh a patient. Each load cell has a cup, a ball and an inverted cup providing the sole support for the patient support. Thus, only vertical components of force are weighed, and lateral movement of the patient support with respect to the bed is minimized.
Claims4
A weigh bed comprising:
- a base including two spaced trapezoidal structures each having a top bar,
- a load cell beam mounted at each end of each said top bar having a first end fixed to said top bar and a second end free to flex vertically,
- a lower partial hemispherical cup of large diameter on the free end of said beam,
- a ball of small diameter in said cup,
- an upper partial hemispherical cup of large diameter engaging the upper side of said ball,
- and a patient support structure mounted on and supported by each said upper ball,
- whereby said patient support structure is impeded from moving laterally off said base by the requirement of said ball and cup riding uphill out of engagement.
4 more elements
Dependencies are inferred from the claim text.