Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Patent
1984-01-12
1986-12-23
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Pilot end having means enhancing fastening or installation
411412, 411417, F16B 2500
Patent
active
046309853
ABSTRACT:
The screw has a conventional threaded body, and a tapered leading end for easy entry to a tapped hole. A projection extends radially from the tapered end portion and when the longitudinal center lines of the screw and hole are misaligned, makes first contact with the threads on the tapped hole. As the screw is turned, the projection follows the tapped threads of the hole to bring the machine screw into alignment. When the projection tracks the internal hole threads, the positional relationship between the projection and the first screw thread brings the starting point of the first screw thread into contact with the starting point of the first thread at the entrance of the tapped hole.
REFERENCES:
patent: 1203546 (1916-10-01), Parsons
patent: 2167910 (1939-08-01), Rottenburg
patent: 2564029 (1951-08-01), Peterson
patent: 3438299 (1969-04-01), Gutshall
patent: 4069730 (1978-01-01), Gutshall
patent: 4439077 (1984-03-01), Godsted
Smith Gary L.
Wilson Neill
LandOfFree
Self aligning screw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self aligning screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self aligning screw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-169590