EP0872647A3 - Vacuum control and cutoff apparatus for a pneumatic duct - Google Patents

Vacuum control and cutoff apparatus for a pneumatic duct Download PDF

Info

Publication number
EP0872647A3
EP0872647A3 EP98830197A EP98830197A EP0872647A3 EP 0872647 A3 EP0872647 A3 EP 0872647A3 EP 98830197 A EP98830197 A EP 98830197A EP 98830197 A EP98830197 A EP 98830197A EP 0872647 A3 EP0872647 A3 EP 0872647A3
Authority
EP
European Patent Office
Prior art keywords
duct
vacuum
vacuum control
cutoff apparatus
pneumatic duct
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.)
Granted
Application number
EP98830197A
Other languages
German (de)
French (fr)
Other versions
EP0872647A2 (en
EP0872647B1 (en
Inventor
Livio Pedrazzoli
Guido Fusani
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.)
Protec SRL
Original Assignee
Protec SRL
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 Protec SRL filed Critical Protec SRL
Publication of EP0872647A2 publication Critical patent/EP0872647A2/en
Publication of EP0872647A3 publication Critical patent/EP0872647A3/en
Application granted granted Critical
Publication of EP0872647B1 publication Critical patent/EP0872647B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manipulator (AREA)
  • Control Of Fluid Pressure (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Processing Of Terminals (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Ventilation (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Paper (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention is directed to a vacuum control and cutoff apparatus for a pneumatic duct (2) connecting a vacuum generator and a vacuum user device to each other. The apparatus is constituted by a closure member (11) of the duct (2), controlled by a fluid under pressure whose flow is in turn controlled by an interception member (5) which is operated by the vacuum amount within the duct (2). The interception member (5) switches over the state of a signalling device (14) which may transmit to other apparatuses the information related to the vacuum condition of the devices connected to the duct (2). <IMAGE>
EP98830197A 1997-04-17 1998-03-31 Vacuum control and cutoff apparatus for a pneumatic duct Expired - Lifetime EP0872647B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO970322 1997-04-17
IT97TO000322A IT1293886B1 (en) 1997-04-17 1997-04-17 EQUIPMENT FOR CONTROL AND INTERCEPTION OF THE PNEUMATIC VACUUM IN A PIPELINE.

Publications (3)

Publication Number Publication Date
EP0872647A2 EP0872647A2 (en) 1998-10-21
EP0872647A3 true EP0872647A3 (en) 1999-03-17
EP0872647B1 EP0872647B1 (en) 2001-05-23

Family

ID=11415648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830197A Expired - Lifetime EP0872647B1 (en) 1997-04-17 1998-03-31 Vacuum control and cutoff apparatus for a pneumatic duct

Country Status (4)

Country Link
EP (1) EP0872647B1 (en)
AT (1) ATE201382T1 (en)
DE (1) DE69800818T2 (en)
IT (1) IT1293886B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336799A1 (en) * 1988-03-18 1989-10-11 Societe D'application De Procedes Electroniques Et Mecaniques Lifting device with suction cups
US4950016A (en) * 1989-04-24 1990-08-21 Teknocraft, Inc. Integrated pneumatic valve/sensor assembly for vacuum supply apparatus
DE4238286A1 (en) * 1992-05-13 1994-05-19 Peter W Baukhage Gmbh Suction gripper for handling flat workpieces - has rod displaced by suction force formed by part of piston cooperating with switch element
DE4330640A1 (en) * 1993-09-10 1995-03-16 Schmalz J Gmbh Flow valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336799A1 (en) * 1988-03-18 1989-10-11 Societe D'application De Procedes Electroniques Et Mecaniques Lifting device with suction cups
US4950016A (en) * 1989-04-24 1990-08-21 Teknocraft, Inc. Integrated pneumatic valve/sensor assembly for vacuum supply apparatus
DE4238286A1 (en) * 1992-05-13 1994-05-19 Peter W Baukhage Gmbh Suction gripper for handling flat workpieces - has rod displaced by suction force formed by part of piston cooperating with switch element
DE4330640A1 (en) * 1993-09-10 1995-03-16 Schmalz J Gmbh Flow valve

Also Published As

Publication number Publication date
IT1293886B1 (en) 1999-03-11
DE69800818T2 (en) 2001-09-13
EP0872647A2 (en) 1998-10-21
DE69800818D1 (en) 2001-06-28
ATE201382T1 (en) 2001-06-15
ITTO970322A1 (en) 1998-10-17
EP0872647B1 (en) 2001-05-23

Similar Documents

Publication Publication Date Title
PT1028766E (en) PNEUMATIC CONTROLLER AND METHOD
ES2177770T3 (en) FLEXIBLE LIFTING DEVICE.
CA2036744A1 (en) Arrangements for switching multiple packet types combined in a single packet stream
CA2240852A1 (en) Product disconnect for metering device
AU7950294A (en) Operation control device for air conditioning equipment
EP0669565A3 (en) Pressure control device.
CA2239297A1 (en) Suction control valve
CA2189074A1 (en) Illuminating inflatable balloon
ES2177708T3 (en) ADAPTER FOR SURGICAL INSTRUMENT CONTAINERS.
GB9719035D0 (en) Brake fluid pressure control device
AU7950194A (en) Operation control device for air conditioning equipment
CZ104996A3 (en) Agent for pressure control within a flowing viscous material and the use thereof
EP0872647A3 (en) Vacuum control and cutoff apparatus for a pneumatic duct
CA1068314A (en) Actuating device
AU7305996A (en) Device for connecting a flexible container to an external duct, and uses thereof
GB9706350D0 (en) Brake fluid pressure control device
DK0719516T3 (en) Cleaning device especially for domestic use
AU3710199A (en) Device and method for alternating pressure flushing
AU6109299A (en) Air pressure stabilising device
PL1547888T3 (en) Braking system for a self-powered rail vehicle provided with an anti-slip device
DK0775651T3 (en) pneumatic tube
ES2144772T3 (en) REMOTE CONTROL AND INDICATION SYSTEM FOR ELECTRICAL DEVICES.
EP0894478B1 (en) Simplified valve actuating device for dental equipment
AU4451496A (en) Railway brake valve control reservoir overload protector
EP1271027A3 (en) Valve device

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 DE DK ES FI FR GB GR IT LU PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RHK1 Main classification (correction)

Ipc: B66C 1/02

17P Request for examination filed

Effective date: 19990730

AKX Designation fees paid

Free format text: AT BE DE DK ES FI FR GB GR IT LU PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20000706

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE DK ES FI FR GB GR IT LU PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20010523

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010523

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010523

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010523

REF Corresponds to:

Ref document number: 201382

Country of ref document: AT

Date of ref document: 20010615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69800818

Country of ref document: DE

Date of ref document: 20010628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010823

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010823

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010824

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011130

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020321

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020322

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031127

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST