Elongated-member-driving apparatus – With interlock means
Patent
1982-10-25
1985-04-09
Bell, Paul A.
Elongated-member-driving apparatus
With interlock means
227130, B25L 104
Patent
active
045096686
ABSTRACT:
The present invention relates to a pneumatically operable fastener driving tool which uses a safety device which prevents the operation of the tool until it is in engagement with the workpiece. More particularly, the safety mechanism includes a safety nose that is normally retained in a retracted position prior to the tool being operated. When the tool is to be operated, the safety nose is extended to be engaged by the workpiece. Subsequent engagement of the safety nose by the workpiece permits the trigger mechanism to effect driving movement of the driver. The mechanism includes a first valve which controls the flow of high-pressure air to the driving piston and a second valve which controls the flow of air to the safety mechanism. The trigger mechanism initially operates the second valve to move the safety nose to the operative position and when the safety nose engages the workpiece it effects operation of the first valve to control the operation of the driving piston.
REFERENCES:
patent: 3713573 (1973-01-01), Fehrs
patent: 4165676 (1979-08-01), Siegmann
patent: 4194664 (1980-03-01), Siegmann
patent: 4339065 (1982-07-01), Haytayan
patent: 4384668 (1983-05-01), Tutomu et al.
Klaus Artur
Wilhelm Hans
Bell Paul A.
Hoover Allen J.
Signode Corporation
LandOfFree
Pneumatically operable fastener driving 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 Pneumatically operable fastener driving tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatically operable fastener driving tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1165280