Christopher J Wisniewski

US Patent:

20210324931, Oct 21, 2021

Filed:

Sep 4, 2019

Appl. No.:

17/272561

Inventors:

- Brooklyn NY, US
Billy BURIER - New York NY, US
Valentin FRIDMANOVICH - Forest Hills NY, US
Christopher WISNIEWSKI - Staten Island NY, US
Stephen R. KEMPF - Brooklyn NY, US

International Classification:

F16F 1/12
E04H 4/10

Abstract:

A drawbar assembly having a first continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along an axis, and a spring anchor formed at the open end; a second continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along the axis, and a spring anchor formed at the open end; the first and second drawbars oriented with respect to each other such that at least a portion of each elongate body overlaps with the other along the axis and the open end of one drawbar is proximate the closed end of the other; and a compression coil spring positioned over the overlapping elongate body portions and secured at each end by a respective spring anchor; wherein a region of at least one closed end is coined.