Threaded – headed fastener – or washer making: process and apparat – Process – Making internally threaded fastener – e.g. – nut
Patent
1994-03-07
1996-04-02
Larson, Lowell A.
Threaded, headed fastener, or washer making: process and apparat
Process
Making internally threaded fastener, e.g., nut
72356, 72334, 420 20, B21D 2200, B21D 5324, B21K 164
Patent
active
055035965
ABSTRACT:
In order to manufacturer a tee nut by plastic working steps, a swollen portion is formed on a metal plate, a through hole is formed in the forward end surface of this swollen portion, and then the outer diameter and therewith the wall thickness of a forward end portion of the swollen portion is relatively reduced as compared to a base portion of the swollen portion. Then, the outer and inner diameters of the base portion are reduced while substantially maintaining its wall thickness. Thus, the forward end portion defines a relatively thin portion to be caulked, and the base portion defines a relatively thick female screw forming portion of the tee nut. Thus, it is possible to form a tee nut having a shaft with a uniform outer diameter and having a relatively thin forward end portion forming the portion to be caulked while the tee nut is held by the metal plate.
REFERENCES:
patent: 945737 (1910-01-01), Anderson
patent: 1724486 (1929-08-01), Karmazin
patent: 1873894 (1932-08-01), Kimbell
patent: 2102558 (1937-12-01), Johnson
patent: 2286982 (1942-06-01), Todd
patent: 2583270 (1952-01-01), Lynall
patent: 2743518 (1956-05-01), Zahodiakin
patent: 2908920 (1959-10-01), Hughes
patent: 3125146 (1964-03-01), Rosan
patent: 3208135 (1965-09-01), Newbold et al.
patent: 3270610 (1966-09-01), Knowlton
patent: 3281171 (1966-10-01), Hughes
patent: 3358727 (1967-12-01), Hughes
patent: 3480061 (1969-11-01), Leistner
patent: 3765217 (1973-10-01), Ikeda
patent: 3910331 (1975-10-01), Randall
patent: 4400965 (1983-08-01), Schey
patent: 4508478 (1985-01-01), Leistner
patent: 4911592 (1990-03-01), Muller
patent: 5195854 (1993-03-01), Nagayama
patent: 5238344 (1993-08-01), Nagayama
patent: 5348432 (1994-09-01), Nagayama
Butler Rodney A.
Fasse W. F.
Fasse W. G.
Larson Lowell A.
Nagayama Electronic Industry Co. Ltd.
LandOfFree
Method of manufacturing tee nuts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing tee nuts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing tee nuts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2013512