Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent
1987-12-30
1989-02-21
Yost, Frank T.
Tool driving or impacting
Impacting devices
Impact transmitting anvil
248635, 248580, 1731621, B25D 1724
Patent
active
048057070
ABSTRACT:
A wrecking implement for attachment to the lift mechanisms of a loader machine comprises a generally rectangular plate having a mounting tube projecting therefrom. A boom having a hammer head carried on its distal end is telescopingly received within the mounting tube such that it extends outwardly of the plate and loader machine. Resilient pads are interposed between the boom and mounting tube and the boom has a metal tubular sleeve transversely through one end thereof which is secured to the mounting tube by passing a bolt through the metal tubular sleeve facilitating limited pivotable movement of the boom relative to the mounting tube and plate. A resilient tubular sleeve is positioned between the bolt and the metal tubular sleeve. The boom is thereby operable by the lift mechanisms of the loader machine to deliver impact blows to concrete or other structures intended to be demolished, and considerable mass may be associated with the hammer head inasmuch as the pads and resilient tubular sleeve serve to dampen a substantial degree of the vibration imparted to the boom during a wrecking operation.
REFERENCES:
patent: 3091159 (1963-05-01), Miller
patent: 3150724 (1964-09-01), Oelkers
patent: 3308730 (1967-03-01), Vorwald
patent: 3658384 (1972-04-01), Gluszek
patent: 3807802 (1974-04-01), Betters
patent: 3823786 (1974-07-01), Voitsekhovsky et al.
patent: 4121777 (1978-10-01), Kolstad et al.
patent: 4240763 (1980-12-01), Moore
patent: 4388018 (1983-06-01), Boschung
patent: 4457645 (1984-07-01), Klochko
Davis Dennis W. P.
Tough Timothy
Videbeck James N.
Wolfe James L.
Yost Frank T.
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