US3691725A - Pneumatic machine for the leak-tight closure of flasks - Google Patents

Pneumatic machine for the leak-tight closure of flasks Download PDF

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Publication number
US3691725A
US3691725A US135020A US3691725DA US3691725A US 3691725 A US3691725 A US 3691725A US 135020 A US135020 A US 135020A US 3691725D A US3691725D A US 3691725DA US 3691725 A US3691725 A US 3691725A
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US
United States
Prior art keywords
piston
receptacle
hollow casing
chamber
stopper
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US135020A
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English (en)
Inventor
Jean Cassimatis
Robert Vie
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Individual
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Individual
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/02—Closing bottles, jars or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
    • B67B3/10—Capping heads for securing caps
    • B67B3/16—Capping heads for securing caps characterised by having resilient deforming elements, e.g. resilient sleeves or collars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B1/00—Closing bottles, jars or similar containers by applying stoppers
    • B67B1/04—Closing bottles, jars or similar containers by applying stoppers by inserting threadless stoppers, e.g. corks

Definitions

  • ABSTRACT A skirted stopper is inserted into the neck of a flask within a shielded enclosure and the skirt is foldedback outside the neck to fonn a leak-tight seal by means of a machine comprising a flask receptacle surmounted by a hollow casing which contains a number of pistons in interfitting relation. Admission of compressed air into the casing by remote control means results in displacement of a main piston, a central plunger and a hammer rod which inserts the stopper; a
  • separator piston provided with flexible extension strips projecting from the casing and surrounding the hammer rod is then displaced downwards to initiate reversal of theskirt; a releasing piston having flexible extension strips which surround the strips of the separator piston is then displaced downwards to complete reversal of the skirt which is applied against the neck, whereupon the pistons are returned upwards automatically and simultaneously by remote control of the compressed-air supply.
  • One application for which the invention is of interest is the fitting of a leak-tight stopper from the exterior of a hot cell under excellent mechanical conditions without entailing any need for manual operation.
  • the invention is more generally concerned with a pneumatic machine for leak-tight closure of flasks by means of flexible stoppers of the reversible skirt type, said machine being essentially characterized in that .it comprises on the one hand a receptacle for receiving a flask which is covered by a flexible skirted stopper and on the other hand a hollow casing which is disposed above said receptacle and contains a series of pistons fitted one inside the other and capable of moving towards or away from said receptacle and consequently said flask which is covered by a stopper placed within said receptacle as a result of introduction of compressed air through one of two pipes each having its opening at one end of said hollow casing, said series of pistons being constituted by a so-called main piston which is applied against the internal wall of the hollow casing and delimits with that end of the hollow casing which is remote from the receptacle a first chamber which communicates with one of the compressed-air pipes, a central plunger in coaxial and
  • FIGS. 1 to 4 are axial longitudinal sectional views showing the machine according to the invention at the different stages of stoppering of a flask in the particular case of remote-controlled stoppering of flasks which are placed within a shielded enclosure or so-called hot cell.
  • said machine comprises the following elements: l.
  • Said receptacle is capable of pivoting about a pin 3.
  • Introduction of a flask or bottle 4 (of plastic material,for example) into the receptacle 1 and placing on said flask of a flexible stopper 5 (of rubber, for example) having a reversible skirt 6 are readily carried out by remote control from the exterior of the hot cell.
  • a hollow casing 9 which can be rigidly fixed to the base-plate 2.
  • Two pipes 10 and 11 each have an opening at one end of said casing and each pipe serves to put this latter into communication either with compressed air or with free air by means of a remotely operated multi-way control lever (not shown).
  • a main piston 12 which is applied against the internal wall of the casing 9 and delimits with the endwall 13 of said casing a chamber 14 which communicates with the pipe 10 b.
  • a central piston or plunger 15 mounted coaxially with the piston 12 in rigidly fixed relation thereto and extended by a so-called hammer rod 16 which projects from the casing 9 c.
  • a piston 17 or so-called separator piston which is applied against the central plunger 15 and delimits with the end-wall 18 of the main piston 12 a chamber 19 which, after displacement of the piston 17 to the end of travel, is permitted to communicate with the chamber 14 by means of a duct 20 which is pierced in the central plunger 15.
  • separator piston 17 is provided with an extension in the form of flexible strips 21 which project from the casing 9-and surround the hammer l6 said strips are integral with a collar 28 which is screwed into the piston 17.
  • a piston 22 or so-called releasing piston which is applied against the separator piston 17 and delimits with the internal wall of the main piston 12 and with the end-wall 23 of the separator piston 17 a chamber 24 which, after displacement of the piston 22 to the end of travel, is permitted to communicate with the chamber 19 by means of a duct 25 pierced in the lateral wall of receptacle 1 and covered with a flexible stopper 5 provided with a skirt 6 is brought into coaxial relation with the hollowcasing 9 in the manner which has been explained above and as a result of remote control action from the exterior of the hot cell.
  • the different elements of the machine are then located in the positions shown in FIG. 1. 2.
  • FIG. 2 shows the stopper which has thus been inserted. It is apparent from this figure that, as a result of sliding motion of the main piston 12, the chamber 14 is much larger than in the case of FIG. 1.
  • the central plunger 15 takes up a position such that the duct 20 puts the chamber 14 which is filled with compressed air into communication with the chamber 19.
  • said chamber 19 is filled with compressed air (as shown in FIG. 3), thereby displacing the separator piston 17 until this latter comes into abutment against a washer 33 which is imprisoned between the hammer 16 and the central plunger 15.
  • FIG. 3 shows this operation at the point of complesequently said flask which is covered by a stopper 29kt this stage, the separator piston 17 takes up a .position such that the duct 25 puts the chamber 19 which is filled with compressed air into communication with the chamber 24. In consequence, said chamber 24 is filled with compressed air (as shown in FIG. 4), thereby displacing the releasing piston 22 until this latter comes up against the ring 34.
  • the flexible strips 26 complete the operation which consists in folding-back the skirt 6 against the neck 32 and then fully withdraw from said skirt.
  • FIG. 4 shows this operation at the point of completion. 5.
  • the pipe 10 By producing action on the remote-control lever (not shown), the pipe 10 is connected to free air and the pipe 11 is connected to the compressed air. The pistons then return upwards simultaneously and automatically.
  • each flask or bottle is transferred by pneumatic tube, for example.
  • the machine accordingto the invention takes up only a small area of the hot cell floor by virtue of its small overall size.
  • a pneumatic machine for leak-tight closure of flasks by means of flexible stoppers of the reversible skirt type wherein said machine essentially comprises a receptacle for receiving a flask which is covered by a flexible skirted stopper and a hollow casing disposed above said receptacle and containing a series of pistons which are fitted one inside the other and are capable of moving towards or away from said receptacle and conplaced with said receptacle as a result of introduction of compressed air through one of two pipes each having its opening at one end of said hollow casing, said series of pistons being constituted by a main piston which is applied against the internal wall of the hollow casing jects from the hollow casing, a separator piston applied against said central plunger and delimiting with the end-wall of the main piston a second chamber which is capable of communicating with the first chamber by means of a duct pierced in the central plunger, said separator piston being extended by flexible strips which project from the hollow casing
  • a pneumatic machine wherein said receptacle for flasks rests on a base-plate and is capable of pivoting about its own axis and of being locked against said base-plate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US135020A 1970-04-24 1971-04-19 Pneumatic machine for the leak-tight closure of flasks Expired - Lifetime US3691725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7015148A FR2088806A5 (fr) 1970-04-24 1970-04-24

Publications (1)

Publication Number Publication Date
US3691725A true US3691725A (en) 1972-09-19

Family

ID=9054598

Family Applications (1)

Application Number Title Priority Date Filing Date
US135020A Expired - Lifetime US3691725A (en) 1970-04-24 1971-04-19 Pneumatic machine for the leak-tight closure of flasks

Country Status (7)

Country Link
US (1) US3691725A (fr)
BE (1) BE765838A (fr)
CH (1) CH534634A (fr)
DE (1) DE2119942A1 (fr)
ES (1) ES390560A1 (fr)
FR (1) FR2088806A5 (fr)
GB (1) GB1326131A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291813A (en) * 1978-02-17 1981-09-29 Buckeye Molding Company Containers and closures
WO1994000349A1 (fr) * 1992-06-24 1994-01-06 Habley Medical Technology Corporation Bouchon pour lyophilisation et procede

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT384202B (de) * 1986-03-04 1987-10-12 Gisperg Wilhelm Vorrichtung zum verschliessen von flaschen
CN112723272B (zh) * 2020-12-24 2023-06-23 南京塔斯诺信息科技有限公司 一种果汁瓶塞安装装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475732A (en) * 1949-07-12 Stoppering device
US2840970A (en) * 1955-03-07 1958-07-01 Unette Corp Stoppering apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475732A (en) * 1949-07-12 Stoppering device
US2840970A (en) * 1955-03-07 1958-07-01 Unette Corp Stoppering apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291813A (en) * 1978-02-17 1981-09-29 Buckeye Molding Company Containers and closures
WO1994000349A1 (fr) * 1992-06-24 1994-01-06 Habley Medical Technology Corporation Bouchon pour lyophilisation et procede

Also Published As

Publication number Publication date
BE765838A (fr) 1971-09-16
GB1326131A (en) 1973-08-08
FR2088806A5 (fr) 1972-01-07
DE2119942A1 (de) 1971-11-04
CH534634A (fr) 1973-03-15
ES390560A1 (es) 1978-01-01

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