Elongated-member-driving apparatus – With means to move or guide member into driving position – Including supply magazine for constantly urged members
Patent
1989-09-15
1991-05-14
Bell, Paul A.
Elongated-member-driving apparatus
With means to move or guide member into driving position
Including supply magazine for constantly urged members
227120, 227156, B25L 104
Patent
active
050148982
ABSTRACT:
A stapler wherein the piston which drives home discrete fasteners is received in a cylinder having an open end overlapped by the valving element of a main valve. The valving element is permanently biased to sealing position by a plastic diaphragm spring and is normally held in such position by pressurized gaseous fluid which is supplied by way of a passage containing a second valve and a reciprocable second valving element close to a chamber at the outer side of the valving element of the main valve. The second valve seals the passage from a source of pressurized fluid and simultaneously establishes communication between the passage and the atmosphere in response to depression of a trigger. This results in a reduction of pressure in the passage whereby the pressurized fluid in the chamber shifts the second valving element to a position in which the chamber is free to communicate with the atmosphere at a location close to the chamber. This enables pressurized fluid to lift the valving element of the first valve and to abruptly propel the piston in a direction to drive a fastener into one or more objects.
REFERENCES:
patent: 4554861 (1985-11-01), Gassner et al.
patent: 4784308 (1988-11-01), Movak et al.
patent: 4821941 (1989-04-01), Cotta
Bell Paul A.
Haubold-Kihlberg GmbH
Kontler Peter K.
LandOfFree
Pneumatically operated fastener driving implement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatically operated fastener driving implement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatically operated fastener driving implement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1642591