Technique plates

Inactive Publication Date: 2009-12-03
DICKERSON MERCEDES L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]An apparatus for weightlifting is disclosed. In one embodiment, the apparatus includes a plate. The plate is formed as one piece of solid plastic. The plate includes a hole that is configured to receive a bar. The plate is used in a weightlifting system. According to the apparatus disclosed herein, the plate is rugged and stable.

Problems solved by technology

However, this made the pressure-per-area even greater when forming plates.
However, they were also more expensive and had a shorter life.
Attempts at standardizing the bar were made as early as around 1905, but standardization could not be finalized until the lifts were finally standardized in 1928.
The device worked but it was also awkward to use.
Slippage was then impossible, while a screw device without the usual levers could make the finer adjustments against the plates.
The screw lever was very simple but fine adjustments to secure the plates were not possible.

Method used

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Embodiment Construction

[0012]The present invention relates to weightlifting systems, and more particularly to a weightlifting plate. The following description is presented to enable one of ordinary skill in the art to make and use the invention, and is provided in the context of a patent application and its requirements. Various modifications to the preferred embodiment and the generic principles and features described herein will be readily apparent to those skilled in the art. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features described herein.

[0013]A weightlifting plate is disclosed. The weightlifting plate is a plate formed as one piece of solid plastic and includes a hole that is configured to receive a bar. The plate is used in a weightlifting system. According to the apparatus disclosed herein, the plate is rugged and stable. To more particularly describe the features of the present i...

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Abstract

An apparatus for weightlifting. In one embodiment, the apparatus includes a plate. The plate is formed as one piece of solid plastic. The plate includes a hole that is configured to receive a bar. The plate is used in a weightlifting system. According to the apparatus disclosed herein, the plate is rugged and stable.

Description

FIELD OF THE INVENTION[0001]The present invention relates to weightlifting systems, and more particularly to a weightlifting plate.BACKGROUND OF THE INVENTION[0002]Weightlifting systems are well known. Typically weightlifting systems include a bar with removable plates of varying weights. A weightlifter may adjust the weights by adding plates to the bar or removing plates from the bar.[0003]In Canada, most plate sets prior to about 1970 were graduated in pounds. A changeover to metrics occurred in the early 70s due to an increased international exposure of weightlifting as well as Canada's anticipated metrification. In addition, the Russian “World Record” plate set was popular at this time and was only available in metric. The conversion to metrics occurred over a transitional period. In Olympic weightlifting oriented gyms, 45, 35, 25, 10, 5, and 2.5 pound plates; 5 pound collars; and 45 pound bars were gradually replaced with 20, 15, 10, 5, 2.5, and 1.25 kilo plates; 2.5 kilo colla...

Claims

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Application Information

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IPC IPC(8): A63B21/06
CPCA63B21/075A63B2209/00A63B23/12
InventorDICKERSON, MERCEDES L.
OwnerDICKERSON MERCEDES L