Willem E Leeflang
Engineers in Salt Lake City, UT
License number
Utah 162183-2202
Issued Date
Jul 16, 1982
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Salt Lake City, UT
Education
UNIVERSITY OF UTAH, Jun 2, 1973
UNIVERSITY OF UTAH, Jun 10, 1978
Professional information
Spring Puller
US Patent:
4976022, Dec 11, 1990
Filed:
Oct 30, 1989
Appl. No.:
7/429085
Inventors:
Theodore W. Thornton - Salt Lake City UT
Willem E. Leeflang - Salt Lake City UT
Willem E. Leeflang - Salt Lake City UT
International Classification:
B23D 1904
US Classification:
29227
Abstract:
A hand-held and hand-manipulated tool adapted to hook or unhook an extension type of helical spring, such as a trampoline spring, to or from an anchoring structure, such as the frame of a trampoline, is preferably formed as a unitary elongate lever of the second kind from steel bar stock advantageously having a rectangular cross section, the end of the lever being adapted to rest on the surface of the spring as a fulcrum, the opposite end portion providing the power arm of the lever and having a handle member formed at its free end transversely of the lever, and a work arm depending from between the power arm and the fulcrum adjacent to the fulcrum and formed to receive and hold the unanchored loop, hook, or eye end of the spring, whose other end is anchored to supporting structure, such as the grommeted margin of the trampoline jump sheet.