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US 4,487,276 AGranted
Scale of flat construction
OwnerBurt L. Swersey, Peter I. Friedinventors
Life of this patent
Estimating the term…
Abstract
The scale is of limited height and utilizes Z-shaped flexures between the load frame and support frame. The scale can be placed in a hospital bed for weighing bed-ridden patients or for monitoring weight variations in bed-ridden patients. A cart is provided for transporting the scale from place to place and includes an inclined ramp from which the scale may be readily moved onto a bed.
Claims33
A portable scale comprising
- a platform for receiving a load thereon, said platform having a depending peripheral skirt to define a substantially enclosed space;
- a load frame secured to said platform within said space;
- a support frame within said space for mounting the scale on a surface;
- flexure means securing said load frame to said support frame to permit movement of said load frame relative to said support frame in response to a load placed on said platform, said flexure means including at least one Z-shaped flexure having a pair of flanges, one of said flanges being secured to said load frame and other of said flanges being secured to said support frame;
- and
- means secured to said flexure means for producing a read-out of the weight of the load placed on said platform.
3 more elements
A portable scale comprising
- a platform for receiving a load thereon, said platform having a depending peripheral skirt to define a substantially enclosed space;
- a load frame secured to said platform within said space, said load frame including a pair of spaced flat sheets and a light-weight filler material between said sheets to define a structurally rigid construction;
- a support frame within said space for mounting the scale on a surface;
- flexure means securing said load frame to said support frame to permit movement of said load frame relative to said support frame in response to a load placed on said platform;
- and
- means secured to said flexure means for producing a read-out of the weight of the load placed on said platform.
3 more elements
A scale of limited height comprising
- a rectangular platform for receiving a load thereon and having a raised wall on one side to provide an abutment for a bed-ridden patient and a window in said wall;
- a load frame secured to said platform;
- a support frame;
- flexure means securing said load frame to said support frame to permit movement of said load frame relative to said support frame in response to a load placed on said platform;
- and
- means secured to said flexure means for producing a read-out of the weight of the load placed on said platform, said means including a digital display for displaying a digital value of the load for viewing through said window.
3 more elements
In a scale, the combination comprising
- a load frame for receiving the weight of a load thereon;
- a support frame;
- and
- flexure means securing said load frame to said support frame to permit movement of said load frame relative to said support frame in response to a load imposing a weight on said load frame, said flexure means including at least one Z-shaped flexure having a pair of flanges, one of said flanges being secured to said load frame and the other of said flanges being secured to said support frame.
1 more element
A portable scale comprising
- a rectangular load frame having a pair of spaced sheets, a filler material between said sheets to define a rigid construction and a pair of channels between said sheets, each said channel being disposed at an opposite end of said frame from the other channel;
- a plastic cover secured to said load frame to define a load-receiving platform;
- a support frame for supporting said load frame;
- flexure means securing said load frame to said support frame to permit movement of said load frame relative to said support frame in response to a load placed on said platform;
- and
- means secured to said flexure means for producing a read-out of the weight of the load placed on said platform.
3 more elements
In combination,
- a movable cart having a frame, a ramp mounted on said frame at an inclined angle and a stop spaced from a lower end of said ramp;
- and
- a flat weighing scale of elongated shape slidably mounted on said ramp and abutted against said stop along a side thereof.
A method of weighing a bed-ridden patient comprising the steps of
- placing a scale of low profile on top of a bed and beside a bed ridden patient;
- placing the bed-ridden patient on the scale;
- and
- obtaining a read-out of the weight of the patient.
1 more element
A method of weighing a bed-ridden patient, comprising the steps of
- bringing a scale of low profile next to a bed;
- rolling a bed-ridden patient to one side;
- sliding the scale onto the bed;
- rolling the patient onto the scale;
- and
- reading out the weight of the patient on the scale.
3 more elements
A portable scale for in bed weighing of a patient, said scale having a flat construction and contour with a height in the range of from about one inch to two inches and comprising
- an elongated platform for receiving a load;
- a support frame for mounting the scale on a surface;
- a flexure means supporting said platform on said support frame for movement in a manner to maintain said platform parallel to said support frame;
- second means secured to said flexure means for producing a read-out of the weight of a load placed on said platform;
- and
- a display connected to said second means within said platform for displaying a value of the load on said platform.
3 more elements
Dependencies are inferred from the claim text.