Cantilever weighing apparatus
First Claim
Patent Images
1. A cantilever arm weighing apparatus, comprising:
- a first arm portion attached to a support structure;
a second arm portion attached to the first arm portion by two linkage members disposed in parallel one above the other, said linkage members being positioned within forks formed in the first and second arm portions;
means for attaching to the second arm portion a support an object to be weighed;
a load cell attached to the first arm portion and extending from the first arm portion to the second arm portion;
bearing means coacting with the load cell and the second arm portion for receiving a load from the second arm portion and transmitting it to the load cell; and
a readout device attached to the load cell, the device providing a readout in response to a load being applied to the load cell through the bearing means.
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Accused Products
Abstract
A cantilever arm weighing apparatus comprises two arm portions joined by two linkage members disposed in parallel one above the other. A load cell extends from the arm portion attached to a support structure to the arm portion which receives the weight to be measured. A bearing coacts with the load cell and the arm portion bearing the weight to receive the load from the arm portion and transfer it to the load cell. The linkage members act to nullify the moment effect and minimize losses due to friction. A readout device is attached to the load cell providing a readout of the weight applied to the load cell through the bearing.
52 Citations
41 Claims
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1. A cantilever arm weighing apparatus, comprising:
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a first arm portion attached to a support structure; a second arm portion attached to the first arm portion by two linkage members disposed in parallel one above the other, said linkage members being positioned within forks formed in the first and second arm portions; means for attaching to the second arm portion a support an object to be weighed; a load cell attached to the first arm portion and extending from the first arm portion to the second arm portion; bearing means coacting with the load cell and the second arm portion for receiving a load from the second arm portion and transmitting it to the load cell; and a readout device attached to the load cell, the device providing a readout in response to a load being applied to the load cell through the bearing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A cantilever arm weighing apparatus, comprising:
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a first arm portion attached to a support structure; a second arm portion attached to the first arm portion by two linkage members disposed in parallel one above the other, said linkage members being attached to the arm portions with pins and being staggered relative to one another; means for attaching to the second arm portion a support for an object to be weighed; a load cell attached to the first arm portion and extending from the first arm portion to the second arm portion; bearing means coacting with the load cell and the second arm portion for receiving a load from the second arm portion and transmitting it to the load cell; and a readout device attached to the load cell, the device providing a readout in response to a load being applied to the load cell through the bearing means. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A cantilever arm weighing apparatus, comprising:
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a first arm portion attached to a support structure; a second arm portion attached to the first arm portion by two linkage members disposed in parallel one above the other; means for attaching to the second arm portion a support for an object to be weighed; a load cell affixed near one end thereof within a cavity formed in the first arm portion, and the other end of the load cell being received within a cavity formed in the second arm portion; bearing means coacting with the load cell and the second arm portion for receiving a load from the second arm portion and transmitting it to the load cell; and a readout device attached to the load cell, the device providing a readout in response to a load being applied to the load cell through the bearing means. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification