Search

David Hunder Phones & Addresses

  • 1412 Mareno Ct, Lady Lake, FL 32159
  • The Villages, FL
  • 46795 156Th Pl, Tamarack, MN 55787
  • Oakdale, MN
  • Austin, TX
  • McGregor, MN
  • Woodbury, MN

Resumes

Resumes

David Hunder Photo 1

David Hunder

View page
Location:
The Villages, FL
Industry:
Mechanical Or Industrial Engineering
Work:
3M Design Solutions
Tired and Retired
David Hunder Photo 2

David Hunder

View page

Publications

Us Patents

Mold Useful In Sealing Leaks In Pipes

View page
US Patent:
43267351, Apr 27, 1982
Filed:
Oct 14, 1980
Appl. No.:
6/196390
Inventors:
David N. Hunder - Woodbury MN
Harold C. Hervig - Maplewood MN
Assignee:
Minnesota Mining & Manufacturing Company - Saint Paul MN
International Classification:
F16L 5518
US Classification:
285 15
Abstract:
The present invention is directed to an article and processes for repairing fluid (e. g. , liquid and gas) leaks in pipes, including, for example, bell and spigot joints. The device and process of the invention incorporates an elastomeric sleeve that extends around the pipe and longitudinally to either side of the leak. The sleeve contains a resin injection port with means to prevent escape of resin at a pressure above a predetermined pressure, and a fluid venting port with pressure-relief means to permit the escape of fluid at a predetermined pressure above the pressure in the pipe to be repaired.
David N Hunder from Lady Lake, FL, age ~90 Get Report