Pumps – Expansible chamber type – Distributor formed from integral portion of flexible wall...
Patent
1977-01-21
1978-09-19
Croyle, Carlton R.
Pumps
Expansible chamber type
Distributor formed from integral portion of flexible wall...
1375124, 417566, F04B 4300, F04B 2102
Patent
active
041150422
ABSTRACT:
A pump for use in a doll having a transparent front torso through which is viewed simulated internal organs, the pump being connected to coiled transparent tubing for passage therethrough of a liquid-air mixture. The pump has a main body portion with a generally cylindrical recess having a circular surface with a coaxial annular groove in the surface and an arcuate groove disposed radially outwardly from the annular groove. An inlet aperture is disposed radially outwardly from the annular groove and is in fluid communication therewith while an outlet aperture is in fluid communication with the arcuate groove with the two grooves being interconnected by a groove segment. A one-piece diaphragm is provided with a flange adapted to sealingly engage the surface, the diaphragm having a deformable dome-shaped portion extending outwardly from the surfce to form a chamber, the diaphragm having a skirt portion fitting within the annular groove with the skirt having a cutaway portion in proximity to the groove segment. The diaphragm flange is also provided with a tongue portion arcuate in cross section for abuttingly engaging a surface of the arcuate groove to provide a check valve between the groove segment and the outlet aperture. The skirt portion is so configured within the groove to act as an inlet check valve.
REFERENCES:
patent: 2219604 (1940-10-01), Trotter
patent: 2715236 (1955-08-01), Tereno
patent: 2920573 (1960-01-01), Schaurte
patent: 2963976 (1960-12-01), Schaurte
patent: 3013502 (1961-12-01), Fay
patent: 3162334 (1964-12-01), Miller
patent: 3314371 (1967-04-01), Hopkinson
patent: 3486663 (1969-12-01), Humphrey
patent: 3561648 (1971-02-01), Humphrey
patent: 3752366 (1973-08-01), Lawrence
patent: 3987938 (1976-10-01), Cooprider et al.
Croyle Carlton R.
Gluck R. E.
King Stephen L.
Mattel Inc.
Mesaros John G.
LandOfFree
Single flow direction miniature pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single flow direction miniature pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single flow direction miniature pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2116429