Weight bearing treadle
First Claim
1. A weight-bearing treadle having at least one substantially rigid horizontal plate and comprising, in cooperative relationship:
- (a) a reinforced, first flexible tube (i) disposed upon said horizontal plate and adapted to react compressively to a weight, and, (ii) sealed at one end thereof and connectable at the other end to a weight-read-out means; and
,(b) a second flexible tube (i) sealed at both ends thereof and, (ii) in contiguous side-wall support relationship with at least a portion of said first flexible tube.
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Accused Products
Abstract
An improved treadle for use in a compact, portable weighing scale comprising a load-bearing, pressure-developing displacement treadle connected to a volume-reacting, weight-indicating readout means. The treadle contains a first sealed collapsible chamber sealed at one end and communicating with the readout means at the other, and a second, fully sealed collapsible chamber not communicating with the readout means. The second sealed chamber improves the compression characteristics of the collapsible chamber. At least one collapsible chamber is preferably formed from flexible tubing which is reinforced with braiding. A treadle comprising two treadle plates, and a means of compacting same, are also disclosed.
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Citations
10 Claims
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1. A weight-bearing treadle having at least one substantially rigid horizontal plate and comprising, in cooperative relationship:
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(a) a reinforced, first flexible tube (i) disposed upon said horizontal plate and adapted to react compressively to a weight, and, (ii) sealed at one end thereof and connectable at the other end to a weight-read-out means; and
,(b) a second flexible tube (i) sealed at both ends thereof and, (ii) in contiguous side-wall support relationship with at least a portion of said first flexible tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification