MATTHEW JAMES HREBAR
Engineers in Beaverdale, PA

License number
Pennsylvania PE009674E
Category
Engineers
Type
Professional Engineer
Address
Address
Beaverdale, PA 15921

Professional information

Matthew Hrebar Photo 1

Secondary Side Mounted Gun Sight And Arrangement, For Auxiliary Use With A Primary Top Mounted Telescope Rifle Sight

US Patent:
3961423, Jun 8, 1976
Filed:
Feb 18, 1975
Appl. No.:
5/550424
Inventors:
Matthew J. Hrebar - Beaverdale PA
International Classification:
F41G 102, F41G 116, F41G 138, F41G 1100
US Classification:
33258
Abstract:
This invention is a secondary sighting system to supplement a primary telescopic sight on a rifle. It consists of a pair of sights, one front and one rear, which are off-set to the side of the rifle bore, in a position which allows their instant use, should the primary telescopic sight become inoperable because of internal fogging, snow or rain covered lenses, target moving fast in thick brush, or target being too close to permit proper vision and sighting with scope magnification. The front sight is a bead type, mounted on a support bar extending to the side from the gun barrel. The rear sight is an open notch type or a peep aperture, or both at one time, mounted on the side of the gun breech. This pair of sights permits a second line of sight aside from the telescope line of sight, parallel to the rifle bore. The front sight bead support bar is approximately one inch long.


Matthew Hrebar Photo 2

Secondary Side Mounted Gunsight And Arrangement, For Auxiliary Use With A Primary Top Mounted Telescopic Rifle Sight

US Patent:
4021926, May 10, 1977
Filed:
Nov 17, 1975
Appl. No.:
5/632680
Inventors:
Matthew James Hrebar - Beaverdale PA
International Classification:
F41G 102, F41G 116, F41G 138, F41G 1100
US Classification:
33258
Abstract:
This invention is a secondary sighting system to supplement a primary telescopic sight on a rifle. It consists of a pair of sights, one front and one rear, which are off-set to the side of the rifle bore, in a position which allows their instant use, should the primary telescopic sight become inoperable because of internal fogging, snow or rain covered lenses, target moving fast in thick brush, or target being too close to permit proper vision and sighting with scope magnification. The front sight is a bead type, mounted on a support bar extending to the side from the gun barrel. The rear sight is an open notch type or a peep aperture, or both at one time, mounted on the side of the gun breech. This pair of sights permits a second line of sight aside from the telescope line of sight, parallel to the rifle bore.