Power tools

Details Power tools Power tools

2007-08-07

2007-08-07

Eley, Timothy V. (Department: 3724)

Abrading

Frame or mount

Portable abrader

C015S230100, C310S062000, C451S488000

Reexamination Certificate

active

11032485

ABSTRACT:
It is accordingly an object of the invention to provide a technique of cooling a power tool which further improves cooling effectiveness of the power tool. According to the invention, a power tool is provided that includes a driving motor, a tool bit, a power transmitting mechanism, a tool body and a cooling fan. The power tool further includes first and second cooling air passages. The first cooling air passage is disposed within the tool body and flows cooling air into the tool body by using the cooling fan. The second cooling air passage is provided within the tool body and takes outside air into the tool body by using the flow of the cooling air through the first cooling air passage. The cooling air within the first cooling air passage can be cooled by mixing outside air taken into the tool body via the second cooling air passage and therefore, the cooling air can further effectively cool components within the power tool. As a result, cooling effectiveness of the power tool can be improved.

REFERENCES:
patent: 2456571 (1948-12-01), Turner et al.
patent: 2779883 (1957-01-01), Schumann
patent: 3829722 (1974-08-01), Rosenthal et al.
patent: 4142120 (1979-02-01), Hallerback
patent: 4342929 (1982-08-01), Horne
patent: 4580460 (1986-04-01), Chang et al.
patent: 5007172 (1991-04-01), Palm
patent: 5634274 (1997-06-01), Ohkouchi et al.
patent: 6848985 (2005-02-01), Lamprecht et al.
patent: 6971456 (2005-12-01), Yamada et al.
patent: 2004/0263008 (2004-12-01), Voigt et al.
patent: 2005/0034883 (2005-02-01), Yamada et al.
patent: 29 10 845 (1980-10-01), None
patent: 4238564 (1994-05-01), None
patent: 29622019 (1998-05-01), None
patent: 0345896 (1989-12-01), None
patent: 0984545 (2000-03-01), None
patent: 31-9496 (1931-06-01), None
patent: 51-128380 (1976-10-01), None
patent: 09-140095 (1997-05-01), None
patent: 10-201205 (1998-07-01), None
patent: 2002-018745 (2002-01-01), None
European Search Report for Application No. 04030813.2-2316, dated Jan. 11, 2007.

Affiliated with

Also associated with

Rating

Power 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 Power tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3900359