David W Lay

US Patent:

20230068173, Mar 2, 2023

Filed:

Aug 26, 2022

Appl. No.:

17/896414

Inventors:

- Lee's Summit MO, US
Robert Walden - Buford GA, US
David Lay - Buford GA, US

International Classification:

E05B 83/10

Abstract:

A bar lock includes an upper strap and a lower strap that receives the bar. The upper and lower strap hingedly engage to hinge butts at an opening of a truck. The upper strap forms an upper cylindrical passage that receives the bar. The upper cylindrical passage includes an upper opening and a lower opening. An upper weld is between the upper opening of the upper cylindrical passage and the bar. The lower strap forms a lower cylindrical passage that receives the bar. The lower cylindrical passage includes an upper opening and a lower opening. A lower weld is between the lower opening of the lower cylindrical passage and the bar.

US Patent:

20230003068, Jan 5, 2023

Filed:

Jun 30, 2022

Appl. No.:

17/855041

Inventors:

- Lee's Summit MO, US
David Lay - Buford GA, US
Daye Zhang - Buford GA, US

International Classification:

E05F 1/12

Abstract:

A counterbalance hinge assembly includes a cam and compression device that counterbalances a weight of a door or a ramp. The compression device biases against a rotation of the door or ramp. The downward movement of the door or ramp drives cam followers in angled slots or cam surfaces of the cam. The angled slots or cam surfaces include varying angles of incline to correspond to varying torque forces of the door or ramp during the opening or closing movement of the door or ramp.