GB1411544A - Retracting inflatable seals - Google Patents

Retracting inflatable seals

Info

Publication number
GB1411544A
GB1411544A GB5055671A GB5055671A GB1411544A GB 1411544 A GB1411544 A GB 1411544A GB 5055671 A GB5055671 A GB 5055671A GB 5055671 A GB5055671 A GB 5055671A GB 1411544 A GB1411544 A GB 1411544A
Authority
GB
United Kingdom
Prior art keywords
seal
spring
chamber
valves
piston
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.)
Expired
Application number
GB5055671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB5055671A priority Critical patent/GB1411544A/en
Publication of GB1411544A publication Critical patent/GB1411544A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings

Abstract

1411544 Creating vacuum; piston discharge apparatus DUNLOP Ltd 25 Oct 1972 [30 Oct 1971] 50556/71 Headings F1N and F1R After a gas or liquid filled inflatable seal 10 has been exhausted to atmosphere by opening valves 3, 4 it is partially evacuated, evacuation being performed by closing the valve 3 and opening a valve 5, the latter causing exhaustion of a chamber 17 which allows a spring 19 to displace a piston or flexible diaphragm 13 and thus suck fluid from the seal into the opposed chamber 18. The chamber 17 is filled with pressurized fluid during inflation of the seal 10. To inflate the seal, valves 1, 2 are opened and valves 4, 5 are closed. This allows fluid from a source 11 to enter the seal and also the chamber 17 whereby to displace the piston or diaphragm against the force of the spring 19. The spring 19 may be a constant force or stiffness tension or compression spring and may be replaced by an air spring or by the flexibility of the diaphragm.
GB5055671A 1971-10-30 1971-10-30 Retracting inflatable seals Expired GB1411544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5055671A GB1411544A (en) 1971-10-30 1971-10-30 Retracting inflatable seals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5055671A GB1411544A (en) 1971-10-30 1971-10-30 Retracting inflatable seals

Publications (1)

Publication Number Publication Date
GB1411544A true GB1411544A (en) 1975-10-29

Family

ID=10456343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5055671A Expired GB1411544A (en) 1971-10-30 1971-10-30 Retracting inflatable seals

Country Status (1)

Country Link
GB (1) GB1411544A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454029A1 (en) * 1979-04-11 1980-11-07 Petroles Cie Francaise INFLATABLE JOINT WITH LARGE TRAVEL
DE102016222310A1 (en) 2016-11-14 2018-05-17 Contitech Luftfedersysteme Gmbh Method for operating a pneumatic actuator and actuator
WO2020043276A1 (en) * 2018-08-29 2020-03-05 Abb Schweiz Ag Robot joint and method for sealing a joint gap of a robot joint
CN110906013A (en) * 2019-11-20 2020-03-24 章锡明 Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions
WO2020257953A1 (en) * 2019-06-22 2020-12-30 CASTRO ARRIAGADA, Luis Osvaldo Inflatable electric packings
CN116873246A (en) * 2023-09-08 2023-10-13 沈阳迎新网络科技有限公司 Unmanned aerial vehicle seals group

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454029A1 (en) * 1979-04-11 1980-11-07 Petroles Cie Francaise INFLATABLE JOINT WITH LARGE TRAVEL
DE102016222310A1 (en) 2016-11-14 2018-05-17 Contitech Luftfedersysteme Gmbh Method for operating a pneumatic actuator and actuator
WO2018086778A1 (en) 2016-11-14 2018-05-17 Contitech Luftfedersysteme Gmbh Method for operating a pneumatic adjusting element and adjusting element
WO2020043276A1 (en) * 2018-08-29 2020-03-05 Abb Schweiz Ag Robot joint and method for sealing a joint gap of a robot joint
US11858126B2 (en) 2018-08-29 2024-01-02 Abb Schweiz Ag Robot joint and method for sealing a joint gap of a robot joint
WO2020257953A1 (en) * 2019-06-22 2020-12-30 CASTRO ARRIAGADA, Luis Osvaldo Inflatable electric packings
CN110906013A (en) * 2019-11-20 2020-03-24 章锡明 Compensation type sealing butterfly valve with sequential linkage opening and closing charging and pressure relief functions
CN110906013B (en) * 2019-11-20 2023-08-08 台州市工宇阀门有限公司 Compensation type sealing butterfly valve with sequential linkage opening and closing functions and pressure relief functions
CN116873246A (en) * 2023-09-08 2023-10-13 沈阳迎新网络科技有限公司 Unmanned aerial vehicle seals group
CN116873246B (en) * 2023-09-08 2023-12-05 沈阳迎新网络科技有限公司 Unmanned aerial vehicle seals group

Similar Documents

Publication Publication Date Title
US4583347A (en) Vacuum packaging apparatus and process
ES410727A1 (en) Safety device with an inflatable cushion, especially for automobiles
GB1462481A (en) Therapeutic cuff
GB1064875A (en) Improvements in air-tight doors equipped with inflatable seals
KR900014606A (en) Apparatus for injecting and recovering gas at high pressure and high speed into the hermetic chamber
GB1411544A (en) Retracting inflatable seals
FR2291114A2 (en) Pneumatic inflatable wedge for securing packed articles - has annular inflatable sacks successively filled
US1726766A (en) Apparatus for packing cashew nuts
FR2265659A1 (en) Suction-type sheet handling equipment - has valves actuated by pressure difference between housing and compartments
IL45517A (en) A method of operating a gas laser
FR2290228A1 (en) Inflatable temporary sealing balloon for mine gallery - has end access and deflation openings and flexible sleeve for inflation fan
GB936543A (en) Compressed air valve for air blast electric breakers
ES412618A1 (en) Pressure vessel
GB1530163A (en) Apparatus for bursting the closed cells of elastic foam pieces
JPS5578859A (en) Shaft sealing device
GB1514134A (en) Door window and similar closures
FR2360850A1 (en) Refrigerator door sealing and holding strip - incorporates valve for exhaustion of air under pressure, to create suction
US789502A (en) Jar-sealing apparatus.
US1079450A (en) Vacuum-package and means for sealing same.
SU839968A1 (en) Suction gripper
GB988808A (en) Improvements in and relating to floating rooftanks having a gas inflated seal
JP2910869B2 (en) Vacuum packaging method for packaging bags
SU932033A1 (en) Apparatus for sealing evacuated vessel
FR2303972A1 (en) Medical suction vessel evacuation process - inflates chamber on one side of elastic wall and releases pressure to generate vacuum
JPS61238442A (en) Gas venting device for casting core

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee