US3910741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for collecting surplus plastic material which is separated from blow molded articles
Assignee: Conduco AG
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Filing: 1973-09-06
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Granted: 1975-10-07
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Expires: 1993-09-06
Abstract
Abstract A blow molding apparatus for the production of plastic bottles has an open-and-shut mold which is movable between a blankreceiving station and a blowing station. The surplus material which adheres to the neck portions and bottom walls of bottles is separated and dropped to descend into or onto suitably configurated intercepting containers or plates for introduction into a path along which the surplus material is conveyed to a collecting receptacle without interfering with the transport of bottles. The conveyor for bottles can serve to transport the separated surplus material toward the receptacle and the intercepting devices can dump the surplus material at the blankreceiving or at the blowing station and in the closed or open position of the mold.
Inventors
- 👤 Gottfried Mehnert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/28; B29C49/02; B29C49/04; B29C49/04102; B29C49/42; B29C49/4205; B29C49/42069; B29C49/70; B29C49/72; B29C49/78; B29C49/80; B29C2049/725; Y; Y10; Y10S; Y10S425/00; Y10S425/806
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
In a blow molding apparatus, a combination comprising an open-and-shut mold having sections movable between open and closed positions and frame means for said sections, said frame means being movable with said sections between a first and a second station; means for supplying said mold with deformable synthetic thermoplastic blanks at said first station; means for expanding a blank in said mold at said second station with attendant conversion of the blank into a hollow article and surplus material which adheres to the article; means for effecting removal of articles from said mold before said frame means and said sections return from said second to said first station; means for transporting the thus removed articles along a first predetermined path; means for separating at least some surplus material from the articles; and means for intercepting the thus separated material and for introducing the intercepted material into a second predetermined path so that the separated material is prevented from contacting articles in said first path, saaid intercepting means comprising duct means mounted on said frame means and arranged to register with said separating means while said frame means and said sections dwell at said first station.
Claim 2
Dependent Claim
195 words
In a blow molding apparatus, a combination comprising an open-and-shut mold having sections movable between open and closed positions and frame means for said sections, said frame means being movable with said sections between a first and a second station; means for supplying said mold with deformable synthetic thermoplastic blanks at said first station; means for expanding a blank in said mold at said second station with attendant conversion of the blank into a hollow article and surplus material which adheres to the article; means for effecting removal of articles from said mold before said frame means and said sections return from said second to said first station; means for transporting the thus removed articles along a first predetermined path; means for separating at least some surplus material from the articles; and means for intercepting the thus separated material and for introducing the intercepted material into a second predetermined path so that the separated material is prevented from contacting articles in said first path, saaid intercepting means comprising duct means mounted on said frame means and arranged to register with said separating means while said frame means and said sections dwell at said first station.
Claim 3
Dependent Claim
20 words
A combination as defined as claim 1, wherein said duct means is provided with a funnel-shaped inlet for surplus material.
Claim 4
Dependent Claim
56 words
A combination as defined in claim 1, wherein said duct means has an outlet for said surplus material, and further comprising second duct means having an inlet in register with said outlet to receive surplus material from said first mentioned duct means while said frame means and said mold sections are located at said first station.
Claim 5
Dependent Claim
56 words
A combination as defined in claim 3, further comprising means for separating additional surplus material from blanks at one of said stations, and means for introducing the thus separated additional surplus material into said inlet of said second duct means while said outlet of said first mentioned duct means is out of register with said inlet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |