DEVICE FOR MECHANICAL WEIGHT BEARING INDICATION WITH LOAD RANGE CAPABILITY
First Claim
1. A mechanical load bearing indicator for producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface, comprising:
- a base plate adapted to establish a frame of reference with the surface;
a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user'"'"'s extremity; and
at least two snap domes mechanically engaged between the base plate and the load plate for generating two signals when more than two different respective and selected loads are applied to the load plate by the extremity.
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Accused Products
Abstract
A mechanical load bearing indicator producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface. The indicator has a base plate adapted to establish a frame of reference with the surface, a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user'"'"'s extremity, and at least two snap domes mechanically engaged between the base plate and the load plate for generating two signals when more than two different respective loads are applied to the load plate by the extremity. The domes are either in series between the plates or are together in a dual dome containing both, or are one or more stacks of domes which individually collapse under incremental loads which are added together to form the selected lower and higher loads.
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Citations
20 Claims
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1. A mechanical load bearing indicator for producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface, comprising:
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a base plate adapted to establish a frame of reference with the surface; a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user'"'"'s extremity; and at least two snap domes mechanically engaged between the base plate and the load plate for generating two signals when more than two different respective and selected loads are applied to the load plate by the extremity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A mechanical load bearing indicator for producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface, comprising:
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a base plate adapted to establish a frame of reference with the surface; a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user'"'"'s extremity; and at least two snap domes mechanical engaged between the base plate and the load plate in series with each other for generating two signals when more than two different respective and selected loads are applied to the load plate by the extremity, so that when a first lower one of the loads is applied to the load plate, a first one of the snap domes collapses and when a second higher one of the loads is applied to the load plate, a second one of the snap domes also collapses. - View Dependent Claims (17, 18)
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19. A mechanical load bearing indicator for producing signals to a user when the user applies more than selected amounts of load between an extremity of the use and a surface, comprising:
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a base plate adapted to establish a frame of reference with the surface; a load plate mounted for movement toward and away from the base plate and adapted to receive loads from the user'"'"'s extremity; and at least two snap domes mechanical engaged between the base plate and the load plate for generating two signals when more than two different respective and selected loads are applied to the load plate by the extremity; the at least two snap domes comprising a low load dome and a high load dome that are integrated into a single dual snap dome having a large diameter base in contact with one of the plates and an apex circle above the one plate in an un-loaded position of the dual dome, and a small diameter dome at the apex circle and in contact with the other of the plates, the large diameter base forming one of the low and high load domes and the small diameter dome forming the other of the low and high load domes. - View Dependent Claims (20)
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Specification