David Hendry Narajowski
Engineers in Heber, UT

License number
Utah 270922-2202
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Heber, UT
Education
UNIVERSITY OF UTAH, Jun 1, 1994

Professional information

David Narajowski Photo 1

Interface For Engaging A Snowboard Boot To A Binding

US Patent:
6347805, Feb 19, 2002
Filed:
Apr 17, 1998
Appl. No.:
09/062131
Inventors:
Paul T. Maravetz - Stowe VT
Jake Burton Carpenter - Stowe VT
David J. Dodge - Williston VT
Thomas M. McGann - Jericho VT
Steven C. McDonald - Timberlakes UT
David Narajowski - Heber City UT
Frank Phillips - Richmond VT
Assignee:
The Burton Corporation - Burlington VT
International Classification:
A63C 920
US Classification:
280624, 280 1422
Abstract:
One embodiment is directed to a system for mounting a rider to a snowboard, and an interface for use in such a system. The system comprises a snowboard boot, a snowboard binding and an interface having at least one mating feature adapted to be releasably engaged by the snowboard binding. The interface further includes at least one strap adapted to mount the interface to the snowboard boot. The outer sole of the snowboard boot includes a recess rearward of the arch area that is adapted to receive the interface so that the interface does not protrude below the outer sole when the interface is mounted to the snowboard boot. In another embodiment, the interface includes a base that is adapted to pass under the sole of the snowboard boot, the base having a non-planar contoured upper surface that is adapted to fit within a recess in a sole of the snowboard boot. In another embodiment, the mating feature of the interface includes at least one engagement pin that extends outwardly from medial and lateral sides of the interface and is circular in cross-section. The various features of the system can be combined or used separately.


David Narajowski Photo 2

Adjustable Ski Skin Attachment Device

US Patent:
7287775, Oct 30, 2007
Filed:
Oct 20, 2004
Appl. No.:
10/969396
Inventors:
Ben Walker - Draper UT, US
David Narajowski - Heber City UT, US
David Mellon - Park City UT, US
Thomas Laakso - Park City UT, US
Assignee:
Black Diamond Equipment, Ltd. - Salt Lake City UT
International Classification:
B62K 13/06
US Classification:
280604, 280601, 2808967, 280400, 280 43, 280 85
Abstract:
The present invention relates to an adjustable ski skin attachment device that can be used to efficiently attach a skin to a ski or snowboard. In accordance with the present invention, an adjustable ski skin attachment device includes two threaded members, a coupler, and a cover. The two threaded members are threaded in reverse directions from one another. The coupler includes two receiving portions with reverse threaded receiving portions such that when the threaded members are inserted into the two receiving portions and the coupler is rotated in one direction, the two threaded members move closer together. And when the coupler is rotated in the opposite direction, the two threaded members move away from one another. The cover is positioned over the two threaded members opposite the coupler. Unlike conventional skin attachment devices, the adjustable ski skin attachment device in accordance with the present invention can be adjusted to fit over a wide variety of widths and tip shapes.


David Narajowski Photo 3

Cartridge Radius Surface

US Patent:
7219917, May 22, 2007
Filed:
Jun 30, 2004
Appl. No.:
10/881592
Inventors:
Ben Walker - Orem UT, US
Mark Santurbane - Salt Lake City UT, US
David Narajowski - Heber City UT, US
David Mellon - Park City UT, US
Thomas Laakso - Park City UT, US
Assignee:
Black Diamond Equipment, Ltd. - Salt Lake City UT
International Classification:
A63C 9/00
US Classification:
280613, 280634, 280611, 280615, 280619
Abstract:
The present invention relates to a radius surface for use on a ski binding resistance mechanism cartridge. The radius surface of the present invention enables a cable coupled to the resistance mechanism cartridge to bend directly adjacent to the cartridge. Since the cable is able to bend adjacent to the cartridge, the overall functionality of a binding is improved. In addition, the radius surface can be adjusted to specifically dictate the exit bend radius allowed on the cable coupled to the resistance mechanism cartridge.


David Narajowski Photo 4

Ski Binding

US Patent:
7216890, May 15, 2007
Filed:
Jun 30, 2004
Appl. No.:
10/881651
Inventors:
Ben Walker - Orem UT, US
Mark Santurbane - Salt Lake City UT, US
David Narajowski - Heber City UT, US
David Mellon - Park City UT, US
Thomas Laakso - Park City UT, US
Assignee:
Black Diamond Equipment, Ltd. - Salt Lake City UT
International Classification:
A63C 9/086
US Classification:
280619, 280612, 280633, 280634, 280635
Abstract:
The present invention relates to an improved telemark ski binding. More particularly, the present invention relates to a dual front cable under-foot telemark binding. The two front cables attach to a linkage point within the toe receiving portion. The front cables are also designed to be easily replaceable by a consumer thereby extending the overall lifespan of the binding. In addition, the coupling between the two front cables and the resistance mechanism cartridges includes a unique rotational and lateral chalking mechanism that prevents inadvertent adjustment.