Tool driving or impacting – Impacting devices – Hammer head comprises plural parts or diverse materials
Patent
1991-05-13
1992-02-11
Yost, Frank T.
Tool driving or impacting
Impacting devices
Hammer head comprises plural parts or diverse materials
173 90, 173115, E02D 704
Patent
active
050868497
ABSTRACT:
Three tubular elements are rigidly bundled together so as to have, in use, a common upper end elevation. The first element is closed at its upper end by a rigid cap element and depnds from the common upper end by approximately 30 centimeters (approximately two feet). The second element consists of a substantially identical length of tube, open at its upper end, depending to a plug element closing its lower end, from which another identical length of tube coaxially depends to an open lower end at about 62 centimeters (marginally greater than four feet) below the upper end. The third element depends from the common upper end through a distance preferred to be between one hundred fifty two centimeters and one hundred eighty three centimeters (between approximately five and six feet), for use as a handle. Included is an extension element, formed of a length of solid rod, of the same diameter as a ground rod an marginally longer than the upper tubular segment of the second element, to which a short segment of the same tubular stock is coaxially rigidly affixed. Alternate embodiments and uses are described.
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Husar John M.
Wallor Robert K.
Yost Frank T.
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