Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Patent
1990-11-01
1991-12-31
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Turbo machine
416226, 416229R, 416241A, 264155, 264277, F04D 2932, B29C 4514
Patent
active
050767607
ABSTRACT:
A method of injection molding a thermoplastic material around a two-piece insert having a rotational axis through which a bore passes is disclosed. The insert is formed from two pieces which are axially spaced to define an annular gate through which the injected thermoplastic material passes radially outward. This technique is particularly useful for forming mixing impellers, because it orients fibers contained within the thermoplastic material in a radially outward direction within the impeller's blades to provide increased strength. The insert also allows improved performance for injection molding parts by reducing their cross-sectional thickness to optimal values. The insert also allows machining the bore without harming the injected plastic material.
REFERENCES:
patent: 1686069 (1928-10-01), Bucklen
patent: 2423700 (1947-07-01), Hardy
patent: 2794756 (1957-06-01), Leverenz
patent: 2996764 (1961-08-01), Ross et al.
patent: 3037652 (1962-06-01), Wallace
patent: 3136370 (1964-06-01), Carlson
patent: 3256939 (1966-06-01), Novak
patent: 3268643 (1966-08-01), Katzenmeyer
patent: 3351691 (1967-11-01), Wilford
patent: 3402879 (1968-09-01), Schroeter
patent: 3408944 (1968-11-01), Belonger et al.
patent: 3445559 (1969-05-01), Siteman
patent: 3510551 (1970-05-01), McCrea
patent: 3594102 (1971-07-01), Oden
patent: 3751181 (1973-08-01), Hayashi
patent: 3865509 (1975-02-01), Frazzell et al.
patent: 4017961 (1977-04-01), Kochte et al.
patent: 4021524 (1977-05-01), Grimsley
patent: 4040670 (1977-08-01), Williams
patent: 4076788 (1978-02-01), Ditto
patent: 4088729 (1978-05-01), Sherman
patent: 4115506 (1978-09-01), Shima
patent: 4430285 (1984-02-01), Runyan et al.
patent: 4689190 (1987-08-01), Peisker et al.
patent: 4722608 (1988-02-01), Salzman et al.
patent: 4747900 (1988-05-01), Angus
patent: 4826645 (1989-05-01), Angus
Webster Walter C.
Weetman Ronald J.
General Signal Corporation
Kleinman Milton E.
Larson James A.
Look Edward K.
Lukacher Martin
LandOfFree
Injection molded, high strength impeller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Injection molded, high strength impeller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molded, high strength impeller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1506388