Harold Macdonald resumes & CV records
Resumes
Harold Macdonald
Independent Education Management Professional
Location:
Greater Boston Area
Harold S Macdonald Deceased2 Danforth Rd, Nashua, NH 03060
Harold Macdonald Phones & Addresses
2 Danforth Rd, Nashua, NH 03060 603-8887913
Arlington, MA
31 Newburgh Rd, Nashua, NH 03062 603-8887913
Work
Position:
Building and Grounds Cleaning and Maintenance Occupations
Education
Degree:
Associate degree or higher
Mentions for Harold S Macdonald
Publications & IP owners
Us Patents
Tipped Lace
US Patent:
4075046, Feb 21, 1978
Filed:
Oct 12, 1976
Appl. No.:
5/731778
Inventors:
Harold B. MacDonald - Hudson MA
Assignee:
Thomas Taylor & Sons, Inc. - Hudson MA
International Classification:
B32B 3120
US Classification:
156 731
Abstract:
The method of rigidifying portions of flexible structures comprised in part or wholly of yarns comprised of man-made fibers of filaments wherein the fibers or filaments of the yarns become welded to each other, specifically to a method of welding the constituent yarns of shoelaces at the ends of the laces so as to form rigid tips of reduced cross section at the ends; to joining two or more yarns at predetermined intervals to form a compound structure; and to joining parallel or crossing portions of yarns arranged in a predetermined relation to each other to form a dimensionally stable structure, by means of sonic vibration supplemented by pressure; and to apparatus for carrying out the method.
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