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Dale Mattheis Phones & Addresses

  • Portland, OR
  • 216 N Pine Ave, Owatonna, MN 55060 (507) 645-8215
  • 1930 Roosevelt Dr, Northfield, MN 55057
  • Bainbridge Island, WA
  • Rollingbay, WA
  • 1930 Roosevelt Dr APT 56, Northfield, MN 55057

Work

Company: Ardent publishing Position: Writer

Industries

Publishing

Resumes

Resumes

Dale Mattheis Photo 1

Writer

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Location:
216 north Pine Ave, Owatonna, MN 55060
Industry:
Publishing
Work:
Ardent Publishing
Writer

Publications

Us Patents

Sound Attenuator For Use In Conjunction With The Motorcycle Helmet Or The Like

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US Patent:
43707580, Feb 1, 1983
Filed:
Oct 27, 1980
Appl. No.:
6/201290
Inventors:
Dale B. Mattheis - Bainbridge Island WA
International Classification:
A42B 302
US Classification:
2423
Abstract:
A motorcycle helmet having a modified exterior configuration to attenuate noise generated when passing through the air. The modified helmet begins flaring outwardly from the traditional helmet configuration at a point adjacent to the chin of the wearer, terminates at a location generally behind the ear of the wearer and is spaced from the exterior shell of the helmet at the central portion of the rearward edge. The trailing edge of the sound attentuating device is open so that the wearer retains the ability to hear noises from behind and beside him.
Dale B Mattheis from Portland, OR, age ~85 Get Report