Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – Reshaping means utilizing fluid pressure directly contacting...
Patent
1989-10-06
1990-11-13
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
Reshaping means utilizing fluid pressure directly contacting...
220 85D, 220 94R, 220908, 264516, 264531, 425522, 425525, 206519, B29C 4920
Patent
active
049698133
ABSTRACT:
A nestable plastic trash container having integrally bonded upper and lower plastic lifter bar members for automated dumping operation by conventional semi-automatic dumping apparatus is fabricated by initially preforming the lifter bar members by blow molding, inserting the preformed lifter bar members into respective recesses in another blow mold apparatus for forming the main body of the container, and then blow molding the main container body while simultaneously bonding it to the preformed lifter bar members. The insert-receiving recesses of the container body blow mold apparatus and the preformed lifter bar members respectively have compatible end-to-end convex arcuate surfaces which abut in sealing relation during the blow molding of the container body to prevent escape of the plastic material into the insert-receiving recesses. The bonding surfaces of the preformed insert bar members are similarly convexly arcuate to direct the plastic material of the container body to expand uniformly about the bonding surfaces for bonding thereto of a generally consistent wall thickness of the main container body.
REFERENCES:
patent: 3140329 (1964-07-01), Nutting
patent: 3579620 (1971-05-01), Pettersson
patent: 3585681 (1971-06-01), Branscum et al.
patent: 3742995 (1973-07-01), Confer et al.
patent: 4170623 (1979-10-01), Du Bois et al.
patent: 4199129 (1980-04-01), Fischer
patent: 4207284 (1980-06-01), Speas
patent: 4215089 (1980-07-01), Uhlig et al.
patent: 4280630 (1981-07-01), Hafele
patent: 4298567 (1981-11-01), Aoki
patent: 4307059 (1981-12-01), Cambio
patent: 4439393 (1984-03-01), Saito et al.
patent: 4479751 (1984-10-01), Wyman et al.
"Roll-A-Waste Systems by Zarn Inc.", Booklet Published by Zarn, Inc., Reidsville, N.C.
"We Enjoy What We Do At . . . Zarn, Inc.", Advertising Brochure Published by Zarn, Inc., Reidsville, N.C.
"Only Perkins Swings You Into Profitable Wheel Cart Dumpting", Advertisement Published by Perkins Mfg. Co., LaGrange, Ill.
"Roll-A-Waste Systems by Zarn, Inc." Booklet Published by Zarn, Inc., Reidsville, N.C.
"We Enjoy What We Do At . . . Zarn, Inc." Advertisement Pamphlet Published by Zarn, Inc., Reidsville, N.C.
"Only Perkins Swings You Into Profitable Wheel Cart Dumping" Advertisement Pub. By Perkins Mfg. Co., LaGrange, Ill.
Douglas Thomas E.
Lee Norman C.
Chiesa Richard L.
Zarn, Inc.
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