Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1994-10-14
1999-11-09
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
249 64, 2643281, 264334, 425577, 425DIG58, B29C 4540
Patent
active
059808098
ABSTRACT:
A method and apparatus for molding a plastic washing machine basket includes a fixed mold core formed with teardrop-shaped projections spaced about a periphery thereof, cavity sidewall members spaced about the periphery of the mold core which carry core pins having tips adapted to abut teardrop-shaped projections on the mold core and a cavity cover member spaced about an end of the mold core and abutting the cavity sidewall members so as to define a cavity between the mold core and both the cavity cover member and the sidewall members. After injecting a plastic material to flow about the tips of the core pins and the projections so as to fill the cavity and form a plastic washing machine basket having an annular sidewall extending from a peripheral portion of a base wall with spaced apertures extending through the sidewall and teardrop-shaped grooves in an inner surface thereof extending from the apertures, the plastic washing machine basket can be ejected from the molding apparatus by separating the mold core and the cavity cover member and shifting the cavity sidewall members away from the mold core at a predetermined angle such that the core pins force the plastic washing machine basket to be removed from the mold core due to engagement of the core pins in the apertures of the basket.
REFERENCES:
patent: 382149 (1888-05-01), Fowles
patent: 1781301 (1930-11-01), Randall
patent: 2434476 (1948-01-01), Wales
patent: 2586794 (1952-02-01), Douglas
patent: 2647632 (1953-08-01), Scheele
patent: 2904982 (1959-09-01), Bochan
patent: 3145551 (1964-08-01), Ziegler
patent: 3249230 (1966-05-01), Clement
patent: 3555607 (1971-01-01), Epain et al.
patent: 3672799 (1972-06-01), Liebertz et al.
patent: 3816047 (1974-06-01), Mohler
patent: 3905740 (1975-09-01), Lovejoy
patent: 4005101 (1977-01-01), Ruch
patent: 4044092 (1977-08-01), Spears
patent: 4125246 (1978-11-01), von Holdt
patent: 4383819 (1983-05-01), Letica
patent: 4520061 (1985-05-01), Stoll et al.
patent: 4521367 (1985-06-01), Underwood
patent: 4531703 (1985-07-01), Underwood
patent: 4618121 (1986-10-01), Conti
patent: 4648834 (1987-03-01), Von Holdt
patent: 4670199 (1987-06-01), Montet et al.
patent: 4764103 (1988-08-01), Mitake
patent: 4777004 (1988-10-01), Galer
patent: 4806301 (1989-02-01), Conti
patent: 4854849 (1989-08-01), Sudo
patent: 4903852 (1990-02-01), Masumoto
patent: 4920661 (1990-05-01), Fukuzawa et al.
patent: 4933133 (1990-06-01), Brown et al.
patent: 5065671 (1991-11-01), Tameris
patent: 5167898 (1992-12-01), Luther
patent: 5287989 (1994-02-01), Luther
Colclasure Melvin D.
Crain Jack L.
Gray P. Randell
Diederiks, Jr. Everett G.
Heitbrink Jill L.
Maytag Corporation
LandOfFree
Method for molding a plastic washing machine basket 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 for molding a plastic washing machine basket, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding a plastic washing machine basket will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1451302