John D Metzger

US Patent:

7374362, May 20, 2008

Filed:

Mar 15, 2006

Appl. No.:

11/376282

Inventors:

John C. Metzger - Lockport NY, US

Assignee:

Tayco Developments, Inc. - North Tonawanda NY

International Classification:

E01F 15/00

US Classification:

404 6, 404 10, 49 9, 49 34, 49 49

Abstract:

In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.

US Patent:

7690859, Apr 6, 2010

Filed:

Apr 10, 2008

Appl. No.:

12/082401

Inventors:

John C. Metzger - Lockport NY, US

Assignee:

Taylor Devices, Inc. - North Tonawanda NY

International Classification:

E01F 15/00

US Classification:

404 6, 404 10, 49 9, 49 34, 49 49

Abstract:

In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.

US Patent:

7901155, Mar 8, 2011

Filed:

Feb 11, 2010

Appl. No.:

12/658490

Inventors:

John C. Metzger - Lockport NY, US

Assignee:

Taylor Devices, Inc. - North Tonawanda NY

International Classification:

E01F 15/00

US Classification:

404 6, 404 10, 49 9, 49 34, 49 49, 244110 C

Abstract:

In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.

US Patent:

54874548, Jan 30, 1996

Filed:

Dec 1, 1994

Appl. No.:

8/347872

Inventors:

Alan R. Klembczyk - Cheektowaga NY
John C. Metzger - East Aurora NY

Assignee:

Tayco Developments, Inc. - North Tonawanda NY

International Classification:

F16F 904

US Classification:

188298

Abstract:

A hydraulic damper including a cylinder and a piston rod and a seal for the piston rod and a metal bellows fixedly mounted between the cylinder and the piston rod for accepting leakage of hydraulic fluid from the cylinder, and a spring arrangement encircling the cylinder and piston rod, the spring arrangement consisting of two equal length, equal size springs wound in opposite directions with their outer ends fixed to the cylinder and piston rod and having their inner ends bearing against each other to eliminate the application of torque from the springs to the bellows.