Invention Grant
- Patent Title: Universal hydraulic impact tool
- Patent Title (中): 通用液压冲击工具
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Application No.: US646151Application Date: 1976-01-02
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Publication No.: US4082471APublication Date: 1978-04-04
- Inventor: Jan A. Hiszpanski
- Applicant: Jan A. Hiszpanski
- Applicant Address: IL Chicago
- Assignee: Imperial-Eastman Corporation
- Current Assignee: Imperial-Eastman Corporation
- Current Assignee Address: IL Chicago
- Main IPC: B25D9/02
- IPC: B25D9/02 ; E01C19/30 ; E02D3/068 ; E01C19/35
Abstract:
A hydraulic impact tool providing improved force absorption for facilitated manipulation by an operator. In the illustrated embodiment, the tool comprises a tamper which provides substantial tamping force with minimum vibration and uncontrolled bounce. The tool utilizes a hydraulic power system for improved noise reduction and minimizaton of fatigue. The tool provides a forward stroke wherein the force is applied for a preselected time, and a retraction stroke wherein the moving elements are retracted to a preselected position. The tool is adapted for use with a wide range of load resistances.
Public/Granted literature
- US5783011A Method of making filtration media having integrally co-located support and filtration fibers Public/Granted day:1998-07-21
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