Undertaking
Patent
1987-05-26
1989-01-03
Miller, V.
Undertaking
272138, 434253, A63B 6918, A63B 2102
Patent
active
047951460
ABSTRACT:
An apparatus for training cross-country skiers and ice skaters has a frame having a center support and two bars, the rear ends of which are connected to said frame in such a manner as to be pivotable about vertical axes. The center support and the bars have respective standing surfaces with threaded bores of the attachment of cross-country ski bindings. The bars are held together by at least one spring and support rollers on their forward ends which rotate about horizontal axes. The hip muscles, thigh extensors and gluteal muscles can be exercised with this apparatus.
REFERENCES:
patent: 2455274 (1948-11-01), Scriver
patent: 3547434 (1970-12-01), Ossenkop
patent: 3591172 (1971-07-01), Hude
patent: 3650528 (1972-03-01), Natterer
patent: 3807727 (1974-04-01), Fergnson
patent: 4340214 (1982-07-01), Schutzer
patent: 4396189 (1983-08-01), Jenkins
patent: 4679786 (1987-07-01), Rodgers
Bachler--"Bbe Skate"--Applicant's Exhibit D filed in Paper No. 4, 1-7-88.
Donnerstag Heinz
Kreuzer Hans-Ueli
Crow J. R.
Miller V.
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