Dispensing – Stationary agitator
Patent
1995-02-23
1996-11-19
Oberleitner, Robert J.
Dispensing
Stationary agitator
222567, 239600, 285328, 2853821, 285395, 403348, B65D 8300, F16L 2500
Patent
active
055754090
ABSTRACT:
A nozzle configuration for a static mixer having a retaining shoulder with a square cross-section, an inclined front face and a flat retaining face that is normal to the longitudinal axis of the nozzle. An undercut having a octagonal cross-section is provided immediately adjacent to the retaining face. The faces of the undercut alternately define access surfaces, that are in the same plane as and join with corresponding outer edges of the retaining shoulder, and locking surfaces that undercut the corners of the retaining shoulder for retaining a locking hub on the nozzle. Travelling clockwise around the undercut, each locking face is inclined relative to the preceding access face at an angle of 40.degree. such that it is harder to unlock a locking hub in the clockwise direction than it is to lock it. The distance between opposing locking surfaces is greater than the distance between opposing sides of a square mounting hole in a conventional locking hub in order to securely retain a locking hub in the locked position.
REFERENCES:
patent: 4361196 (1982-11-01), Hoyle, Jr.
patent: 4538920 (1985-09-01), Drake
patent: 5033650 (1991-07-01), Colin et al.
patent: 5326036 (1994-07-01), Wilger
patent: 5462317 (1995-10-01), Keller
Horner Terry A.
Oberleitner Robert J.
Rutherford Kevin D.
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