Vibration reduction apparatus for power tool and power tool...

Details Vibration reduction apparatus for power tool and power tool... Vibration reduction apparatus for power tool and power tool...

2008-01-29

2008-01-29

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Including means to vibrationally isolate a drive means from...

Handle type holder

C173S162100, C016S431000

Reexamination Certificate

active

11146181

ABSTRACT:
A handle assembly for a power tool is described and includes a first substantially tubular body portion210which contains a first spring212.A second body portion216is slidably mounted within first body portion210and contains a second spring218.A third body portion222is also slidably mounted within first body portion210.The biasing coefficient, or spring constant, of the first spring212is less than that of the second spring218.The first, second and third body portions210, 216and222,and first and second springs,212and218,are all mounted coaxially on threaded bolt224.In use the third body portion222moves within first body portion210in a direction towards end portion214and the first and softer spring212becomes compressed more rapidly than the second and harder spring218.When the distance D1has reduced to zero, by compression of first spring212,the rubber washer230engages end portion220of second body portion216and the biasing effect of first spring212is eliminated The biasing force of the harder second spring218acts alone up to a distance D2.

REFERENCES:
patent: 644014 (1900-02-01), Jackson
patent: 1358486 (1920-11-01), Wilhelm
patent: 1573458 (1926-02-01), Smith
patent: 1597245 (1926-08-01), Prellwitz
patent: 1644030 (1927-10-01), Prellwitz
patent: 1711688 (1929-05-01), O'Farrell
patent: 2290256 (1942-07-01), Souter
patent: 2349341 (1944-05-01), Disse
patent: 3451492 (1969-06-01), Ekstrom et al.
patent: 3788404 (1974-01-01), Koudelka et al.
patent: 3849883 (1974-11-01), Kolorz
patent: 4138812 (1979-02-01), Zimmerer et al.
patent: 4217677 (1980-08-01), Sumikawa
patent: 4282938 (1981-08-01), Minamidate
patent: 4371043 (1983-02-01), Kubokawa
patent: 4401167 (1983-08-01), Sekizawa et al.
patent: 4478293 (1984-10-01), Weilenmann et al.
patent: 4611671 (1986-09-01), Hansson
patent: 4673043 (1987-06-01), Greppmair
patent: 4711308 (1987-12-01), Blass et al.
patent: 4749049 (1988-06-01), Greppmair
patent: 4800965 (1989-01-01), Keller
patent: 4905772 (1990-03-01), Honsa et al.
patent: 4936394 (1990-06-01), Ohtsu
patent: 5025870 (1991-06-01), Gantner
patent: 5046566 (1991-09-01), Dorner et al.
patent: 5052500 (1991-10-01), Ohtsu
patent: 5095600 (1992-03-01), Allan
patent: 5125189 (1992-06-01), Holmin et al.
patent: 5157807 (1992-10-01), Keller et al.
patent: 5170922 (1992-12-01), Ehmig et al.
patent: 5213167 (1993-05-01), Best et al.
patent: 5269381 (1993-12-01), Oscarsson
patent: 5363736 (1994-11-01), Huang
patent: 5522466 (1996-06-01), Harada et al.
patent: 5607343 (1997-03-01), Keith, Jr. et al.
patent: 5697456 (1997-12-01), Radle et al.
patent: H1811 (1999-11-01), Rescigno
patent: 6123158 (2000-09-01), Steffen
patent: 6148930 (2000-11-01), Berger et al.
patent: 6375171 (2002-04-01), Zimmerman et al.
patent: 6421880 (2002-07-01), Prajapati et al.
patent: 6446421 (2002-09-01), Kramer et al.
patent: 6766868 (2004-07-01), Frauhammer et al.
patent: 2001/0011846 (2001-08-01), Krondorfer et al.
patent: 2002/0197939 (2002-12-01), Frauhammer et al.
patent: 2003/0006051 (2003-01-01), Schmitzer et al.
patent: 122 752 (1931-05-01), None
patent: 936 835 (1955-12-01), None
patent: 1 143 397 (1963-02-01), None
patent: 41 24 574 (1993-01-01), None
patent: 100 36 078 (2002-02-01), None
patent: 0 033 304 (1981-08-01), None
patent: 1 070 209 (2001-01-01), None
patent: 1 514 648 (2005-03-01), None
patent: 080 920 (1982-02-01), None
patent: 2 243 571 (1991-11-01), None
patent: 2 297 514 (1996-08-01), None
patent: 2 360 970 (2001-10-01), None
patent: 1269989 (1986-11-01), None
patent: WO 03057418 (2003-07-01), None

Affiliated with

Also associated with

Rating

Vibration reduction apparatus for power tool and power tool... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration reduction apparatus for power tool and power tool..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration reduction apparatus for power tool and power tool... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3911525