Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent
1984-07-17
1986-11-25
Schran, Donald R.
Tool driving or impacting
Impacting devices
Impact transmitting anvil
173133, 173134, B25D 1724
Patent
active
046243259
ABSTRACT:
A percussion tool comprising a housing; a tool bit movably supported by the housing for alternatingly executing forward and recoil strokes; a hammer piston supported in the housing and arranged for delivering consecutive blows at least indirectly to the tool bit for effecting the forward strokes thereof; a dampening chamber in the housing; an arrangement for introducing fluid into the dampening chamber for generating a dampening force therein; and a dampening piston supported in the housing and bounding the dampening chamber. The tool bit is connected with the dampening piston for effecting an axial displacement of the dampening piston into the dampening chamber by the tool bit during the recoil strokes thereof. There is further provided a control arrangement carried by the dampening piston for varying the dampening force of the fluid in the dampening chamber as function of a relative axial displacement between the dampening piston and the housing.
REFERENCES:
patent: 4068727 (1978-01-01), Andersson et al.
patent: 4073350 (1978-02-01), Eklof et al.
patent: 4308926 (1982-01-01), Montabert
patent: 4363365 (1982-12-01), Nikolaev et al.
Schran Donald R.
SIG Schweizerische-Industrie Gesellschaft
Wolfe James L.
LandOfFree
Apparatus for dampening the recoil of percussion tools does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for dampening the recoil of percussion tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for dampening the recoil of percussion tools will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1154038