Patents, 1968-1979
Scope and Contents
The Patents subseries has three files which contain patents relating to the types of machines and products that Shelly worked with, as well as the patents of Shelly's designs from 1951 through 1986. The Shamrock Industries file contains legal documents relating to G. T. Schjeldahl’s work on machines for Shamrock Industries which could automatically fill ice cream containers of four- or five-quart capacities or smaller. The Windmoeller and Hoelscher Corporation file contains the patent and other documents for a reciprocally moving hot-wire, which could cut thermoplastic sheets into individual segments, for use in bag making machines. The Haugen and Nikolai, Patent 95 (1995) file has documents relating to Patent 95 of the SARRC/SAURC machines. The machines from 1995 forward had a new split drive rewind roll changer which permitted the unwind and rewind, respectively, to move forward or reverse at different rates.
Dates
- created: 1901-2002
- Other: Date acquired: 09/29/2001
Creator
- From the Collection: Schjeldahl, Gilmore T. (Person)
Conditions Governing Access
Open for inspection under the rules and regulations of the Elwyn B. Robinson Department of Special Collections.
Full Extent
From the Collection: 7.50 Linear Feet
Language of Materials
From the Collection: English
Repository Details
Part of the Elwyn B. Robinson Department of Special Collections Repository
Chester Fritz Library
3051 University Ave Stop 9000
Grand Forks ND 58202-9000 US
701-777-4625
und.archives@und.edu