US3785116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the production of filled and closed plastic containers
Assignee: Netstal Maschinen AG
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Filing: 1971-08-31
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Granted: 1974-01-15
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Expires: 1991-08-31
Abstract
Abstract In a method of producing, filling and closing plastic containers, the steps of producing a container preform, blowing up the preform and filling the resultant container, closing the filled container and removing the filled container are performed simultaneously at different locations or stations, whereby several containers are simultaneously subjected to respective different steps. Each container is produced, filled, closed and removed in two successive steps, the removal being effected at opposite ends of a row of stations, with the production of a preform being effected, in both steps, in the same station of the row by injection molding, while the blowing up and filling of a container, the closing of a filled container and the removal of the filled container are effected in successive steps at two different stations in the row and adjoining the injection molding station. The apparatus includes at least one row of five stations arranged at equal distances from each other, with first and fifth being removal stations, the second and the fourth being blowing up, filling and closing stations, and the third or central station being an injection molding station. A runner reciprocable longitudinally of the row in steps whose length is equal to the distance between adjacent stations is arranged above stationary lower tools provided in each of the five stations. This runner carries four upper tools on a support which is vertically reciprocable into and out of operative relation with the lower tools. The runner is reciprocated through a stroke equal to the distance between two adjacent stations. In each of the two positions of the runner, the four upper tools cooperate with a respective end station and the three stations immediately succeeding the end station.
Inventors
- 👤 P Munz
- 👤 H Byland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:49
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/06; B29C49/061; B29C49/064; B65; B65B; B65B3/00; B65B3/02; B65B3/022; B29C2049/023
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
223 words
In apparatus for producing, filling and closing plastic containers, the improvement comprising, in combination, at least one row of five stations spaced equal distances longitudinally from each other; each second, third and fourth station including a respective stationary lower tool; the first and fifth stations of each row constituting removal stations including means for removing filled and closed containers, the second and fourth station of each row constituting blowup, filling and closing stations, for blowing up of the preform and filling of the resultant container and for closing of the filled container, and the third station of each roW comprising an injection molding station including means for injection molding a container preform; four upper tools cooperable with said stationary lower tools and arranged in a row at distances from each other equal to the distances separating said stations; the first and fourth upper tools including filled container closing and gripping means, and the second and third upper tools including container preform forming and container blow-up and filling core means; means mounting said upper tools for reciprocation as a group longitudinally of the row of stations through a distance equal to the distance separating said stations from each other; and means operable to displace said upper tools, as a group, downwardly into operative relation with four lower tools and upwardly into a retracted position.
Claim 2
Dependent Claim
223 words
In apparatus for producing, filling and closing plastic containers, the improvement comprising, in combination, at least one row of five stations spaced equal distances longitudinally from each other; each second, third and fourth station including a respective stationary lower tool; the first and fifth stations of each row constituting removal stations including means for removing filled and closed containers, the second and fourth station of each row constituting blowup, filling and closing stations, for blowing up of the preform and filling of the resultant container and for closing of the filled container, and the third station of each roW comprising an injection molding station including means for injection molding a container preform; four upper tools cooperable with said stationary lower tools and arranged in a row at distances from each other equal to the distances separating said stations; the first and fourth upper tools including filled container closing and gripping means, and the second and third upper tools including container preform forming and container blow-up and filling core means; means mounting said upper tools for reciprocation as a group longitudinally of the row of stations through a distance equal to the distance separating said stations from each other; and means operable to displace said upper tools, as a group, downwardly into operative relation with four lower tools and upwardly into a retracted position.
Claim 3
Dependent Claim
282 words
In apparatus for producing, filling and closing plastic containers, the improvement comprising, in combination, at least one row of five stations spaced equal distances longitudinally from each other; each station including a respective stationary lower tool; the first and fifth stations of each row constituting removal stations for removing filled and closed containers, the second and fourth station of each row constituting blowup, filling and closing stations, for blowing up of the preform and filling of the resultant container and for closing of the filled container, and the third station of each row comprising an injection molding station for producing a container preform; four upper tools cooperable with said stationary lower tools and arranged in a row at distances from each other equal to the distances separating said stations; means mounting said upper tools for reciprocation as a group longitudinally of the row of stations through a distance equal to the distance separating said stations from each other; means operable to displace said upper tools, as a group, downwardly into operative relation with four lower tools and upwardly into a retracted position, said means supporting said upper tools comprising a horizontally reciprocable runner carrying a vertically displaceable support mounting said upper tools; first actuator means operable to displace said runner horizontally; and second actuator means operable to displace said support vertically; said support having two end positions spaced by the distance between adjacent stations and, in one end position, aligning said four upper tools above the first four tools starting from one end of said row of stations and, in the other end position, aligning said upper tools with the first four lower tools starting from the opposite end of said row.
Claim 4
Dependent Claim
282 words
In apparatus for producing, filling and closing plastic containers, the improvement comprising, in combination, at least one row of five stations spaced equal distances longitudinally from each other; each station including a respective stationary lower tool; the first and fifth stations of each row constituting removal stations for removing filled and closed containers, the second and fourth station of each row constituting blowup, filling and closing stations, for blowing up of the preform and filling of the resultant container and for closing of the filled container, and the third station of each row comprising an injection molding station for producing a container preform; four upper tools cooperable with said stationary lower tools and arranged in a row at distances from each other equal to the distances separating said stations; means mounting said upper tools for reciprocation as a group longitudinally of the row of stations through a distance equal to the distance separating said stations from each other; means operable to displace said upper tools, as a group, downwardly into operative relation with four lower tools and upwardly into a retracted position, said means supporting said upper tools comprising a horizontally reciprocable runner carrying a vertically displaceable support mounting said upper tools; first actuator means operable to displace said runner horizontally; and second actuator means operable to displace said support vertically; said support having two end positions spaced by the distance between adjacent stations and, in one end position, aligning said four upper tools above the first four tools starting from one end of said row of stations and, in the other end position, aligning said upper tools with the first four lower tools starting from the opposite end of said row.
Claim 5
Dependent Claim
108 words
In apparatus for producing, filling and closing plastic containers, the improvement claimed in claim 2, in which said injection molding station includes an injection mold having a bottom injection opening; the lower tool of each of said second and fourth station comprising a blow mold; the lower tool of each of said first and fifth stations comprising an endless conveyor belt, said endless conveyor belts being driven in respective opposite directions; each of the two intermediate upper tools comprising a container filling core connected to a respective filling tank arranged thereabove; each of the two outer upper tools comprising a heated mandrel and a pair of clamping jaws.
Claim 6
Dependent Claim
56 words
In apparatus for producing, filling and closing plastic containers, the improvement claimed in claim 2, in which said second actuator comprises a hydraulic actuator having a vertically oriented piston rod which extends downwardly; said support being connected to the lower end of said piston rod; the cylinder of said second actuator being mounted on said runner.
Claim 7
Dependent Claim
56 words
In apparatus for producing, filling and closing plastic containers, the improvement claimed in claim 4, including a bridge; horizontal yoke bars mounted on said bridge; said runner being slidably mounted on said horizontal yoke bars; said first actuator comprising a hydraulic actuator including a cylinder mounted on said bridge and a pisTon connected to said runner.
Claim 8
Dependent Claim
77 words
In apparatus for producing, filling and closing plastic containers, the improvement claimed in claim 5, including a plurality of said rows of stations arranged in parallel juxtaposed relation with the respective stations of each row being laterally adjacent the corresponding stations of the immediately adjacent rows; all of the upper tools being mounted on a common support; and a common channel communicating with the openings of all of said injection molds for feeding the injection molding material.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |