EP0282168A2 - Pneumatic valve - Google Patents
Pneumatic valve Download PDFInfo
- Publication number
- EP0282168A2 EP0282168A2 EP88301179A EP88301179A EP0282168A2 EP 0282168 A2 EP0282168 A2 EP 0282168A2 EP 88301179 A EP88301179 A EP 88301179A EP 88301179 A EP88301179 A EP 88301179A EP 0282168 A2 EP0282168 A2 EP 0282168A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pneumatic
- container
- positions
- security valve
- plates
- Prior art date
- 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.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
- E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B37/00—Permutation or combination locks; Puzzle locks
- E05B37/12—Permutation or combination locks; Puzzle locks with tumbler discs on several axes
Definitions
- This invention concerns a pneumatic combination valve designed to be operable by authorised persons only and therefore suitable for use in security applications.
- a pneumatic security valve comprising a unit having a pneumatic inlet, a pneumatic outlet, two movable plates separating said inlet and outlet and each having passage means therein and being movable to one of a plurality of positions, the arrangement being such that a communication between the inlet and outlet is established by said passage means only when the two plates are in corresponding positions.
- Each of the plates may be circular and movable to one of a plurality of equi-angularly spaced positions.
- Indent means may be provided to locate the plates in the selected positions.
- the transport container essentialy comprises a large steel box 10 whose rear wall is comprised by a pair of hinged doors 11 and 12.
- the container is adapted to be conveyed by road on a suitable trailer in well known manner.
- the doors 11 and 12 may be locked in a closed position by an actuator member 13 (which is urged by a spring 14) to a position engaging a catch 15 on the inside of the door 11 at its upper edge. In this position the member 13 also acts to depress a bolt member 16 into the floor of the container 10.
- an actuator member 13 which is urged by a spring 14
- the member 13 also acts to depress a bolt member 16 into the floor of the container 10.
- a pneumatic cylinder 17 is provided and may be actuated by pressure air through line 18 to retract the member 13 to release the doors 11 and 12.
- All of the parts 13 to 17 inclusive are located within the container 10 and are inaccessible from the outside when the doors 11 and 12 are closed.
- Pressure air may be applied to line 18 through a connector 19 mounted on the exterior of the container 10.
- the line 18 includes a pneumatic security valve generally indicated at 20 and comprised by four units 21 connected in series.
- Each unit 21 comprises an inlet 22 separated from an outlet 23 by a pair of discs 24 and 25 each having an aperture 26 therethrough.
- Each of the discs 24 and 25 can be rotated using a screw driver or similar tool to a selected one of ten equi-angularly spaced positions by rotatable control shafts 27 and 28.
- the control shafts 27 and 28 turn relative to mounting plates 29 and 30 marked with the numerals 0 - 9 inclusive to indicate in which position each of the discs 24 and 25 is located.
- Spring-loaded indent means is provided to prevent accidental displacement of the discs 24 and 25 from their selected positions.
- the plates 29 of the four units 21 are grouped together to form a control panel 31 on an inside wall of the container 10 whilst those 30 form a similar panel 32 on the outside of the container 10.
- a security officer will set the shafts 27 on the inside of the container to a selection of random positions.
- a small door may be provided to cover the panel 31 and prevent other personnel from reading the selected positions.
- the doors 11 and 12 are closed and are locked by the action of air cylinder 17.
- pressure air is applied to connection 19 after the shafts 28 on the outside of the container have been rotated to positions corresponding with those on shafts 27 to align the apertures 26 in each unit 21 of the valve.
- the correct positions can be relayed to a security officer or other authorised person at the destination for the container by telephone or telex for example.
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
- This invention concerns a pneumatic combination valve designed to be operable by authorised persons only and therefore suitable for use in security applications.
- Most goods nowadays are conveyed in containers by sea, rail and road. Those on the road, especially when parked overnight, are vulnerable to the unwelcome attention of thieves.
- It is amongst the objects of the present invention to provide more effective locking means for such containers utilising the pneumatic combination valve of the invention.
- According to the invention there is provided a pneumatic security valve comprising a unit having a pneumatic inlet, a pneumatic outlet, two movable plates separating said inlet and outlet and each having passage means therein and being movable to one of a plurality of positions, the arrangement being such that a communication between the inlet and outlet is established by said passage means only when the two plates are in corresponding positions.
- Each of the plates may be circular and movable to one of a plurality of equi-angularly spaced positions.
- There may be ten such positions which may be identified by the numerals 0 - 9.
- Indent means may be provided to locate the plates in the selected positions.
- The valve may comprise a plurality of valve units as aforesaid connected in series.
- The invention will be further apparent from the following description with reference to the figures of the accompanying drawings, which show, by way of example only, one form of security valve embodying the invention and used to prevent unauthorised access to a transport container.
- Of the drawings:-
- Figure 1 shows a side elevation of a transport container;
- Figure 2 shows a rear view of the transport container of Figure 1;
- Figure 3 shows one side of the pneumatic security valve;
- Figure 4 shows a cross-section through one of the units of the valve of Figure 3; and
- Figure 5 shows a diagram of the parts controlled by the valve.
- Referring now to the drawings, it will be seen that the transport container essentialy comprises a
large steel box 10 whose rear wall is comprised by a pair of hingeddoors - The container is adapted to be conveyed by road on a suitable trailer in well known manner.
- As shown in Figure 5 the
doors catch 15 on the inside of thedoor 11 at its upper edge. In this position themember 13 also acts to depress abolt member 16 into the floor of thecontainer 10. - A
pneumatic cylinder 17 is provided and may be actuated by pressure air throughline 18 to retract themember 13 to release thedoors - All of the
parts 13 to 17 inclusive are located within thecontainer 10 and are inaccessible from the outside when thedoors - Pressure air may be applied to
line 18 through aconnector 19 mounted on the exterior of thecontainer 10. - The
line 18 includes a pneumatic security valve generally indicated at 20 and comprised by fourunits 21 connected in series. - Each
unit 21 comprises aninlet 22 separated from anoutlet 23 by a pair ofdiscs aperture 26 therethrough. Each of thediscs rotatable control shafts control shafts mounting plates discs discs - The
plates 29 of the fourunits 21 are grouped together to form acontrol panel 31 on an inside wall of thecontainer 10 whilst those 30 form asimilar panel 32 on the outside of thecontainer 10. - In use, a security officer will set the
shafts 27 on the inside of the container to a selection of random positions. A small door may be provided to cover thepanel 31 and prevent other personnel from reading the selected positions. After the container is loaded thedoors air cylinder 17. In order to unlock the doors pressure air is applied toconnection 19 after theshafts 28 on the outside of the container have been rotated to positions corresponding with those onshafts 27 to align theapertures 26 in eachunit 21 of the valve. The correct positions can be relayed to a security officer or other authorised person at the destination for the container by telephone or telex for example. - It will be noted that the driver of the trailer hauling the container will not be aware of the valve settings and cannot therefore be intimidated by would-be thieves.
- It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art, being possible.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878705654A GB8705654D0 (en) | 1987-03-10 | 1987-03-10 | Pneumatic valve |
GB8705654 | 1987-03-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0282168A2 true EP0282168A2 (en) | 1988-09-14 |
EP0282168A3 EP0282168A3 (en) | 1989-05-10 |
Family
ID=10613689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88301179A Withdrawn EP0282168A3 (en) | 1987-03-10 | 1988-02-12 | Pneumatic valve |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0282168A3 (en) |
GB (2) | GB8705654D0 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0454580A2 (en) * | 1990-04-27 | 1991-10-30 | Merrell Dow Pharmaceuticals Inc. | Novel nojirimycin derivatives |
WO1998046845A1 (en) * | 1997-04-14 | 1998-10-22 | Jakov Vukovic | Lock blocking system against burglary |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR573439A (en) * | 1923-02-02 | 1924-06-23 | Device for closing off the removable parts of devices circulating water or other fluids, such as radiators for explosion engines or other similar devices | |
US3053071A (en) * | 1959-03-19 | 1962-09-11 | Badoud William | Combination lock for luggage |
DE2603846A1 (en) * | 1976-02-02 | 1977-08-04 | Vinzenz Furlan | Cipher lock with horizontal shafts - has cipher altering device with spring loaded slide displaying ciphers in operation |
DE2929237A1 (en) * | 1978-09-15 | 1980-03-27 | Renato Cacioni | HYDRAULIC OR PNEUMATICALLY WORKING, COMBINATION-CONTROLLED LOCKING DEVICE FOR APARTMENT AND OFFICE DOORS, OR FOR ARMORED DOORS |
-
1987
- 1987-03-10 GB GB878705654A patent/GB8705654D0/en active Pending
-
1988
- 1988-02-12 GB GB8803246A patent/GB2208090A/en not_active Withdrawn
- 1988-02-12 EP EP88301179A patent/EP0282168A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR573439A (en) * | 1923-02-02 | 1924-06-23 | Device for closing off the removable parts of devices circulating water or other fluids, such as radiators for explosion engines or other similar devices | |
US3053071A (en) * | 1959-03-19 | 1962-09-11 | Badoud William | Combination lock for luggage |
DE2603846A1 (en) * | 1976-02-02 | 1977-08-04 | Vinzenz Furlan | Cipher lock with horizontal shafts - has cipher altering device with spring loaded slide displaying ciphers in operation |
DE2929237A1 (en) * | 1978-09-15 | 1980-03-27 | Renato Cacioni | HYDRAULIC OR PNEUMATICALLY WORKING, COMBINATION-CONTROLLED LOCKING DEVICE FOR APARTMENT AND OFFICE DOORS, OR FOR ARMORED DOORS |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0454580A2 (en) * | 1990-04-27 | 1991-10-30 | Merrell Dow Pharmaceuticals Inc. | Novel nojirimycin derivatives |
EP0454580A3 (en) * | 1990-04-27 | 1992-04-29 | Merrell Dow Pharmaceuticals Inc. | Novel nojirimycin derivatives |
WO1998046845A1 (en) * | 1997-04-14 | 1998-10-22 | Jakov Vukovic | Lock blocking system against burglary |
Also Published As
Publication number | Publication date |
---|---|
EP0282168A3 (en) | 1989-05-10 |
GB2208090A (en) | 1989-02-22 |
GB8705654D0 (en) | 1987-04-15 |
GB8803246D0 (en) | 1988-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
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RHK1 | Main classification (correction) |
Ipc: E05B 51/02 |
|
17P | Request for examination filed |
Effective date: 19890814 |
|
17Q | First examination report despatched |
Effective date: 19891030 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19901122 |
|
R18W | Application withdrawn (corrected) |
Effective date: 19901122 |