Electrical grinding power tool with grinding dust suction
AssigneeHilti Aktiengesellschaft
InventorBernhard Link
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AssigneeHilti Aktiengesellschaft
InventorBernhard Link
Estimating the term…
A grinding power tool including a motor-driven grinding plate (2) supported in the housing (1) and having a plurality of suction openings (3) connected by a suction channel (4) provided in the housing (1) with a vacuum source (5), and at least one suction relief valve associated with the suction channel (4) for controlling pressure in the suction channel (4).
A grinding power tool, comprising a housing (1);
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Portable grinding machines
Dust extraction equipment on grinding or polishing machines: specially designed for portable grinding machines, e.g. hand-guided
Machines, devices, or processes for grinding or polishing
Term ended 19 Apr 2022 (estimated)
1. Field of the Invention
The present invention relates to a grinding power tool and, in particular to a hand-guided electrical orbital sander, including a housing, a motor-driven grinding plate supported in the housing and having a plurality of suction openings, and a section channel provided in the housing for connecting the suction openings with a vacuum source.
2. Description of the Prior Air
The drawings show:
FIG. 1 a side view of an electrical grinding power tool wit grinding dust suction according to the present invention;
FIG. 2 a bottom view, at an increased, in comparison with FIG. 1, scale, of the connection end region of the suction channel of the power tool according to the present invention;
An electrical power grinding tool with a suction device according to the present invention, which is generally shown in FIG. 1, included a housing 1 and a motor-driven grinding plate 2 supported in the housing 1. The grinding plate 2 is provided, at its operating side, with a plurality of suction openings 3 for aspirating grinding dust and is connected with a suction channel 4.
The housing 1 has a handle 6 for guiding the electrical grinding power tool. The handle 6 is equipped with a switch 7 for turning the power tool motor on and off.
The suction channel 4 has, at its connection end region 10, a suction union 9 which is connected with an external vacuum source 5 by a flexible hose 8. A vacuum, which is generated in the vacuum source 5, provides for aspiration of a grinding dust-loaded air through the suction holes 3 in the grinding plate 2.