US3650678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the sterilization of a machine
Assignee: Individual
•
Filing: 1968-12-09
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Granted: 1972-03-21
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Expires: 1988-12-09
Abstract
Abstract Apparatus for the sterilization of a machine for the production, filling and closing of containers wherein a source delivering a sterilizing agent is connected to various elements of the machine.
Inventors
- 👤 Gerhard Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/46; B65; B65B; B65B55/00; B65B55/02; B29C2049/4602; B29C2049/4635; B29C2791/00; B29C2791/004; B29C2791/005; B29C49/42414; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4266
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
239 words
Apparatus for the sterilization of a machine serving for the production, filling and closing of containers consisting of thermoplastic plastic comprising a dosing device having a dosing chamber limited by a shifting piston and controlled by a feed and outlet valve, a filling device connected to said outlet valve and having a gas feed line to be connected at least from time to time with the container that is to be produced, said gas feed line having a bacteriological filter therein, said filling device cooperating from time to time at least with a molding arrangement serving for the production of the container, a source for sterilization agent, two connections from said source to said dosing device, one said connection being to one side of the shifting piston and the other said connection being to the other side of the shifting piston, said one of said connections being made through said feed valve to said dosing chamber, and a third connection from said source to said gas feed line upstream of said bacteriological filter, whereby sterilizing agent from said source is passed to said dosing device on each side of said shifting piston, then from said dosing chamber to and through said filling device and further sterilizing agent is passed from said source to said gas feed line through said bacteriological filter and through said filling device, the sterilizing agent thereby being passed through said filling device in two paths.
Claim 2
Dependent Claim
239 words
Apparatus for the sterilization of a machine serving for the production, filling and closing of containers consisting of thermoplastic plastic comprising a dosing device having a dosing chamber limited by a shifting piston and controlled by a feed and outlet valve, a filling device connected to said outlet valve and having a gas feed line to be connected at least from time to time with the container that is to be produced, said gas feed line having a bacteriological filter therein, said filling device cooperating from time to time at least with a molding arrangement serving for the production of the container, a source for sterilization agent, two connections from said source to said dosing device, one said connection being to one side of the shifting piston and the other said connection being to the other side of the shifting piston, said one of said connections being made through said feed valve to said dosing chamber, and a third connection from said source to said gas feed line upstream of said bacteriological filter, whereby sterilizing agent from said source is passed to said dosing device on each side of said shifting piston, then from said dosing chamber to and through said filling device and further sterilizing agent is passed from said source to said gas feed line through said bacteriological filter and through said filling device, the sterilizing agent thereby being passed through said filling device in two paths.
Claim 3
Dependent Claim
32 words
Apparatus according to claim 1, in which during the operation of the apparatus the dosing device on said other side of said piston is open to the outside air through a valve.
Claim 4
Dependent Claim
39 words
Apparatus according to claim 1, in which the mouth of the filling device is surrounded by a means for passing sterile gas during the operation so that the sterile gas will flow around the mouth of the filling device.
Claim 5
Dependent Claim
54 words
Apparatus according to claim 1, in which the filling device is disposed separately from an extruder through the head of which a second gas feed line feeds, said second gas feed line having a second bacteriological filter therein and being connected to said third connection from said source upstream of said second bacteriological filter.
Claim 6
Dependent Claim
32 words
Apparatus according to claim 4 in which in the case of use of steam as a sterilizing agent, a condensate remover is removably connected in series at least with the filling device.
Claim 7
Dependent Claim
44 words
Apparatus according to claim 4 in which the valves are in the form of tube valves, whose resilient hose is to be clamped by a cam, and in which the connection between the two valves leads through the dosing chamber of the dosing device.
Claim 8
Dependent Claim
107 words
Apparatus according to claim 4 in which the valves are in the form of tube valves, whose resilient hose is to be clamped by a cam, and in which the connection between the two valves leads through the dosing chamber of the dosing device, the hose for the two valves being guided in parallel to one another on a front wall of the dosing device and the cams of the two valves being disposed on one common shaft, whereby the passage through the two hoses is free in the case of a middle position lying between their border position for the closing each time of one valve.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |