Driving tool for fastener elements

Details Driving tool for fastener elements Driving tool for fastener elements

1996-05-20

1998-07-21

Smith, Scott A.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

B25C 104

Patent

active

057823952

ABSTRACT:
The invention relates to a driving tool for fastener elements, wherein a tool casing includes a valve cavity of a main valve closed by a casing cover, a valve piston being sealingly and slidingly mounted coaxially within the valve cavity about a work cylinder, the valve piston when in a lower position sealingly engaging upon an upper edge of the work cylinder so as to close an inlet passage communicating with a pressure air source and opening into an upper work space of the work cylinder, and the valve piston when in an upper position closing an outlet passage, which communicates with the work space via a throughbore of the valve piston, by sealingly engaging a valve seat element, the valve piston having a lower work surface which is continuously subjected to pressure of the pressure air source, and an upper work surface adapted to be selectively subjected to atmospheric pressure or pressure of the pressure air source by a control valve, the improvement of which is characterized by the valve piston having axially extending throughbores, interconnecting webs extending through the throughbores, and the interconnecting webs having one end connected to a sealing ring at the bottom of the valve piston and having an other end connected to a damper ring at the top of the valve piston.

REFERENCES:
patent: 2914032 (1959-11-01), Powers et al.
patent: 3011169 (1961-12-01), Cast et al.
patent: 3086207 (1963-04-01), Lingle et al.
patent: 3181566 (1965-05-01), Volkmann et al.
patent: 3320860 (1967-05-01), Bade
patent: 3612379 (1971-10-01), Panock
patent: 3677457 (1972-07-01), Ramspeck et al.
patent: 3784077 (1974-01-01), Burke, Jr. et al.
patent: 3948426 (1976-04-01), La Pointe
patent: 4351464 (1982-09-01), Fehrs et al.
patent: 4378084 (1983-03-01), Scala
patent: 4441644 (1984-04-01), Farian
patent: 4597517 (1986-07-01), Wagdy
patent: 4609135 (1986-09-01), Elliesen
patent: 4629106 (1986-12-01), Howard et al.
patent: 4867366 (1989-09-01), Kleinholz
patent: 4932480 (1990-06-01), Golsch
patent: 5020712 (1991-06-01), Monacelli
patent: 5025971 (1991-06-01), Schafer et al.
patent: 5137197 (1992-08-01), Bauer
patent: 5193730 (1993-03-01), Tanaka et al.
patent: 5485946 (1996-01-01), Jankel
patent: 5495973 (1996-03-01), Ishizawa et al.

Affiliated with

Also associated with

Rating

Driving tool for fastener elements does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1639653