US3834558A - Pneumatic elevator for lifting a sheet of material - Google Patents

Pneumatic elevator for lifting a sheet of material Download PDF

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Publication number
US3834558A
US3834558A US00385653A US38565373A US3834558A US 3834558 A US3834558 A US 3834558A US 00385653 A US00385653 A US 00385653A US 38565373 A US38565373 A US 38565373A US 3834558 A US3834558 A US 3834558A
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Prior art keywords
piston
cylinder
plug
chamber
pneumatic elevator
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US00385653A
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English (en)
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M Bru
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0293—Single lifting units; Only one suction cup
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0212—Circular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0256—Operating and control devices

Definitions

  • Werner Attorney, Agent, or Firm-Diller, Brown, Ramik & Wight bers and adapted to be connected to the suction means and communicating with the interior of the pisintroducing it between drive rollers of the type having a tubular piston with a suction nozzle at its distal end displaceable in a cylinder with which it forms an annular space.
  • the piston moves downwards in the cylinder under the force of gravity, its upward movement with the sheet held thereby being assured by a spring.
  • the upward movement is limited by a movable plug to a height corresponding to the position at which the sheet is to be introduced between the rollers.
  • the plug comprising a tubular portion and two laterally extending bearing members.
  • the plug divides the cylinder into three chambers: a first chamber to one side of a ing member remote from the first bearing member and adapted to communicate directly with the interior ofv the piston, and third chamber formed about the tubular portion between the first and second bearing memton through the pressure-drop orifice in the tubular portion.
  • the plug acts as valve means for connecting the annular space with the suction means in the upper rest position of theplug and the atmosphere in the lower operating position of the plug.
  • the lifting power of the pneumatic elevator is greatly increased by a substantial reduction in the force exerted upward movement by the spring.
  • ABSTRACT I Pneumatic elevator for lifting a sheet of material for 32 3230 n x i 33 i t a; 72 24-- Z Z 25 i, a
  • the present invention generally relates to pneumatic elevators and more particularly to the application of such pneumatic elevators to gripping and handling sheet material for introducing such material into a processing machine or apparatus.
  • Such a pneumatic elevator is for removing sheets of material one at a time from a stack of sheets, the uppermost sheet of which being at a height below that at which each sheet is released and fed one by one between a pair of driving rollers thereby assuring the introduction of the sheets into a stamping machine.
  • Pneumatic elevators currently in use for this purpose comprise a tubular piston mounted for movement under the force of gravity to the lower end of the associated cylinder and having a suction nozzle at its distal end, a spring urging the piston upwardly against the force of gravity into contact with an abutment at its end remote from the suction nozzle, the piston defining with the cylinder an annular space adapted to be connected with suction means, the interior of the piston also being adapted to be connected to the suction means through a calibrated pressure-drop orifice.
  • pneumatic elevators usually arranged in a row parallel to the associated drive rollers and in the vicinity thereof, are in addition pivotally mounted about a pivot pin also parallel to said rollers.
  • the suction means is then cut off so that the piston may free the sheet, which up to then is carried, as the sheet is gripped by said drive rollers.
  • suction nozzles of pneumatic elevators of this type are subject to rapid wear requiring them to be replaced nearly daily.
  • the height at which the piston is adapted to release the sheet is different that the height corresponding to the dead point or rest position.
  • the associated control valve is arranged outside the associated control valve is arranged outside the cylinder and connected thereto through various tubes.
  • the suction means must evacuate the tubes connected to the elevator beforehand which is prejudicial to the operating time of the elevator and therefore the work or production rate.
  • An object of the present invention consists in a pneumatic elevator of the type described above, advantageously without these drawback.
  • the pneumatic elevator according to the invention adapted for the handling of sheet material comprises a cylinder, a tubular piston mounted for movement under the force of gravity to the lower end of the cylinder and having a suction nozzle at its distal end, a spring urging said piston against the force of gravity towards the upper end of said cylinder, said piston defining with said cylinder an annular space adapted to be connected to a suction means, the interior of the piston also adapted to be connected to suction means, a plug mounted for displacement in the upper end of said cylinder between an upper rest position and a lower operating position at which it limits the upward movement of the piston, said plug defining two chambers in the cylinder, a first chamber rotatively remote from the piston communicating with the atmosphere, a second chamber relatively close to the piston communicating with the interior of the piston, the plug acting as valve means being adapted to connect the annular space between the piston and the cylinder with the suction means in the upper position of the plug and with the atmosphere in the lower position of the plug.
  • FIGS. 1A, 1B, 1C, 1D illustrate the operation of the conventional type of pneumatic elevator
  • FIG. 2 is an axial sectional view of improved, and for the most part, known pneumatic elevator provided with a movable plug acting as stop means for the piston;
  • FIGS. 35 are view similar to FIG. 2 showing the operation of the improved pneumatic elevator
  • FIGS. 6-9 are views similar to those of FIGS. 2-5 respectively for the pneumatic elevator according to the invention.
  • FIG. 10 is a detail view in axial section of an alternative embodiment of the pneumatic elevatoraccording to the invention.
  • FIG. 11 is an elevation view of the embodiment of FIG. 10, and
  • FIG. 12 shows a detail view in axial section along the line XII-XII in FIG. 11.
  • a conventional pneumatic elevator comprises a tu' bular piston 10 provided with a suction nozzle 11 at its lower end and movable in a cylinder 12, for taking sheets 13 one by one from a pile and introducing these sheets one at a time between drive rollers 14, 15 rotatably mounted in opposed directions.
  • the suction nozzle 11 of the piston 10 has its upper dead point or rest position (FIG. 1A) at H], the height substantially at which the sheet 13 are introduced between the rollers 14, 15.
  • the piston 11 From its dead point or rest position shown in FIG. 1A, the piston 11 is able to drop unitl it comes in contact with the uppermost sheet 13 in the pile (FIG. 18), then rises carrying with it the sheet by means of suction (FIG. 1C) until once again it reaches the upper rest position where the sheet is at the height H1.
  • the cylinder 12 is then slightly rocked about an axis parallel to the rollers 14, 15 which enables the introduction of the sheet between the rollers, and once this sheet is released by the piston 11, it is driven by the rollers l4, 15.
  • such a pneumatic elevator also has a tubular piston 10 displaceably mounted in a cylinder 12, defining an annular space 20 therewith.
  • a suction nozzle 11 is provided at the distal end of piston 10 and has a passage 21 in communication with the interior 22 of the piston 10; a radial flange 23 closing off the annular space 20 is carried at the inner end of the tubular piston 10 remote from the suction nozzle.
  • the lower end of the annular space 20 is in communication with a tube 24 adapted to be connected to suction means of any type (not illustrated).
  • annular space 20 communicates with the interior 22 of the piston 10 via calibrated pressuredrop orifice 25 formed in the wall of the piston 10.
  • a spring 26 is arranged in the annular space 20 and bears against the inner end 27 of the cylinder 12 urging the tubular piston 10 upwardly by bearing against the flange 23 fixed to the piston.
  • a plug 30 movably mounted at the upper end of the cylinder 20 acts as a stop means for limiting the upward movement of the tubular piston 10.
  • the plug 30 is displaceable in the cylinder 12 under the force of gravity the plug defining two chambers in the cylinder, a first of which is relatively remote from the piston and communicates with the atmosphere through a hole 31 in the upper end 32 of the cylinder 12.
  • the first chamber is effectively eliminated at the upper dead point or rest position shown in FIG. 2 and is more clearly seen at 33 in FIGS. 3-5.
  • the plug 30 defines in the cylinder a second chamber 34 which communicates with the interior 22 of the piston 10.
  • the chamber 34 is at least in part formed annularly about a portion of reduced section 35 in the plug 30 and in the rest position communicates with the interior 22 of the piston 22 via an elbow passageway 36.
  • the plug 30 has a support shoulder 37 adapted to cooperate with the support shoulder 38 provided in the cylinder 12 for this purpose.
  • the suction nozzle 11 is at H2 above the position H1, at which the introduction of a sheet 13 between the rollers 14, 15 may be effected.
  • annular space 20 is connected by the tube 24 to associated means (FIG. 3). whereupon there is a partial vacuum in the annular space 20; there is also a partial vacuum in the interior 22 of the piston and in the chamber 34 thereabove, but this partial vacuum is smaller by the fact that the interior 22 of the piston 10 is only in communication with the annular space 20 through the calibrated pressure-drop orifice 25.
  • the different features of the pneumatic elevator in particular the sections of the cylinder 12, piston 10 and orifice 25, the weight of the piston 10 and spring force, are chosen so that under the force of gravity acting on the piston 10, taking into account the above-defined partial vacuum, the piston 10 is displaced vertically downwardly against the spring 20 which it compresses (FIG. 3).
  • the movable plug also moves downwards, owing to the force of gravity acting thereon and the fact that the chamber 33 thereabove is in communication with the atmosphere and the chamber 34 therebelow is under a partial vacuum (FIG. 3).
  • the interior 22 of the piston 10 is closed off and therefore a partial vacuum is created therein which is equal to that in the annular space 20.
  • the spring 26 is chosen so that, taking into account the different sections of the annular space 20 and the interior 22 of the piston in which the partial vacuum is present at this time overcomes the combined weight of the piston and the sheet 13 carried thereby by a sufficiently large margin to assure the lifting the combination in the predetermined direction of lifting F (FIG. 4).
  • the plug 30 moves from its upper rest position to its lower operating position (FIGS. 4 and 5) at which it is held by the shoulder 37, the latter being in engagement with the shoulder 38 of the cylinder 12.
  • the weight of the movable plug per se is chosen so that, taking into account the force due to the partial vacuum in the difference spaces, it stops the lifting movement of the piston 10 when the latter comes once again into abutting contact therewith (FIG. 5).
  • the cylinder 12 is then swung about a pivot parallel to the rollers for enabling the introduction of the sheet 13 therebetween, the communication between the annular space 20 and the associated suction means is then cut off.
  • the sheet 13 is then freed by the piston 10 and grasped by the drive roller I4, 15 (operation not shown).
  • the suction nozzle 11 does not remain in contact with the sheet 13 once the latter is driven by the rollers l4, 15.
  • the cylinder 12 of course returns at the same time to its vertical rest position by pivoting.
  • the partial vacuum in the piston l0 during its fall or descent is 100 gms/cm and the lifting force provided by the piston is 1,900 gms.
  • the movableplug 30 acts as a control valve means movably mounted in the upper end of the cylinder 12.
  • the movable plug has a first bearing member 40 extended towards the piston 10 by a tubular portion 41.
  • the tubular portion carries at its mid-section a second bearing member 42.
  • the plug 30 thus defines three chambers in the cylinder: a first chamber 43 between the upper end 32 of the cylinder 12 and the bearing member 40 which in the upper rest position FIG. 6 of the illustrated embodiment is effectively nonexistant but is clearly apparent in FIGS. 8 and 9.
  • the chamber 43 communicates with the atmosphere through hole 31 formed in the top end 32 of the cylinder 12.
  • a second chamber 46 located below the bearing member 42 and adapted to communicate directly with the interior 22 of the piston 10.
  • a third chamber 44 is formed annularly about the tubular portion 41 of the plug 30 between the bearing members 40 and 42 thereof.
  • the third chamber 44 is adapted to be connected by a tube 24 A to the associated suction means.
  • the third chamber 44 is connected via tube 24 B with the annular space 20 between the piston 10 and the cylinder 12 at the lower end of the cylinder.
  • the third chamber 44 is also in communication with the interior 22 of the piston 10 via calibrated pressure-drop orifice 47 formed on the tubular portion 41 of the plug 30 between the bearing members 40, 42.
  • the piston 10 is not provided with any calibrated pressure-drop orifice.
  • a passageway 48 is provided in the cylinder 12 for possible communication between the second and third cham bers 46 and 44 described above.
  • the bearing member 42 of the movable plug 30 opens the passageway 48 which at that moment in turn effects direct communication between the suction means and the interior 22 of the piston 10, the calibrated pressure-drop orifice 47 is thus shortcircuited by the passageway 48.
  • the lifting force F of the piston 10 is thus increased to 6,400 gms and therefore is very much greater than previously obtained.
  • the cylinder 12 is provided at its upper open end with at least one hole 31, as in the previous embodiment, superpositioned by a cap 52, a filter 53 disposed annularly about the hole 31 sandwiched between the cap 52 and the upper end of the cylinder.
  • the sandwiched air filter 53 may be formed as a ring of felt.
  • Pneumatic elevator for handling sheet material of the type including a cylinder, a tubular piston mounted for movement under the force of gravity to the lower end of the cylinder and having a suction nozzle at its distal end, a spring urging the piston towards the upper end of the cylinder against the force of gravity, the piston defining with the cylinder an annular space adapted to be connected to suction means, the interior of the piston also being adapted to be connected to suction means, a plug movably mounted at the top of the cylinder between an upper rest position and a lower operating position at which it acts as an abutment for limiting the further upward displacement of the piston, the plug defining two chambers in the cylinder, a first chamber relatively remote from the piston and communicating with the atmosphere, and a second chamber relative close to the piston and communicating with the interior of the piston, the plug providing valve means adapted to connect said annular space with the suction means in the upper position of the plug and with the atmosphere in the lower position of the plug.
  • Pneumatic elevator according to claim 1 wherein the movable plug is provided with a tubular portion extending towards the piston and having a calibrated pressure-drop orifice.
  • Pneumatic elevator according to claim 2 wherein the cylinder has a passageway which is closed off by the movable plug in its upper position and short-circuits the calibrated pressure-drop orifice in its lower position.
  • Pneumatic elevator according to claim 3 wherein the plug has two bearing members, the first chamber being defined to one side of a first bearing member remote from the second bearing member and communicating with the atmosphere, the second chamber being located to one side of the second bearing member remote from the first bearing member and adapted to communicate directly with the interior of the piston, and a third chamber formed about the tubular portion between the first and second bearing members and adapted to be connected to the suction means and communicating with the interior of the piston through the pressure-drop orifice.
  • Pneumatic elevator according to claim 1, wherein an air filter is arranged between the first chamber and the atmosphere.
  • the air filter being of annular configuration and sandwiched between the open upper end of the cylinder and the cap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
US00385653A 1972-08-11 1973-08-06 Pneumatic elevator for lifting a sheet of material Expired - Lifetime US3834558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229050A FR2195753B1 (ja) 1972-08-11 1972-08-11

Publications (1)

Publication Number Publication Date
US3834558A true US3834558A (en) 1974-09-10

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US00385653A Expired - Lifetime US3834558A (en) 1972-08-11 1973-08-06 Pneumatic elevator for lifting a sheet of material

Country Status (6)

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US (1) US3834558A (ja)
JP (1) JPS5120110B2 (ja)
ES (1) ES193984Y (ja)
FR (1) FR2195753B1 (ja)
IT (1) IT994573B (ja)
NL (1) NL159630B (ja)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078671A (en) * 1974-12-12 1978-03-14 Lundstrom Goran O Arrangement at industrial robots
US4548396A (en) * 1982-05-26 1985-10-22 Agfa-Gevaert N.V. Object-holding device of sucker cup type and sheet dispensing apparatus incorporating such device
US4640503A (en) * 1984-05-28 1987-02-03 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Sheet-separating and conveying suction device
US4674784A (en) * 1986-02-24 1987-06-23 Avondale Industries, Inc. Suction-type gripping mechanism with magnetic actuated vent valve
US4736938A (en) * 1984-11-07 1988-04-12 Zvs Adamovske Strojirny, Koncernovy Podnik Suction feeder on a printing machine
US4749329A (en) * 1982-12-06 1988-06-07 Motorola, Inc. Die pick mechanism for automatic assembly of semiconductor devices
US5044868A (en) * 1988-12-10 1991-09-03 Palamatic Handling Systems Ltd Valve system for controlling a vacuum lifting apparatus
US5049030A (en) * 1989-06-30 1991-09-17 Lockert Timothy L Materials handling equipment
US5193776A (en) * 1990-10-05 1993-03-16 Smc Kabushiki Kaisha Mechanism for locking angular movement of suction pad
US5374158A (en) * 1990-01-16 1994-12-20 Aetrium, Inc. Probe and inverting apparatus
WO2000066481A1 (en) * 1999-05-04 2000-11-09 Piab Ab Vacuum operated lifting apparatus
US6276891B1 (en) * 1998-08-12 2001-08-21 Automated Manufacturing Technology, Inc. Soft touch vacuum bar
US6457759B1 (en) * 1999-10-13 2002-10-01 Nec Corporation Adsorption pen improved in operability
US20030062735A1 (en) * 2001-09-28 2003-04-03 Pabst William V. Two way non leaking flow valve with full-open capability
US6561749B1 (en) * 1998-12-01 2003-05-13 Smc Kabushiki Kaisha Work sucking device
US20040139989A1 (en) * 2003-01-21 2004-07-22 Ilich Robert L. Egg lifting apparatus
US20050258657A1 (en) * 2001-09-21 2005-11-24 Gunter Gebauer Vacuum handling device having a suction nozzle and gripper part contained within a single housing
US7543868B1 (en) * 2005-04-13 2009-06-09 The Caldwell Group, Inc. Mechanically actuated vacuum lifting device
ITBS20110028A1 (it) * 2011-03-14 2012-09-15 Gimatic Spa Dispositivo di manipolazione azionato dal vuoto
US20150151436A1 (en) * 2013-11-29 2015-06-04 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Transport
US10751764B2 (en) * 2009-11-12 2020-08-25 Filter Safe Ltd. Filter cleaning system with a movable proximity nozzle
US10864555B2 (en) 2017-09-21 2020-12-15 AMP Robotics Corporation Systems and methods for robotic suction grippers
US11084175B2 (en) * 2018-12-13 2021-08-10 Amazon Technologies, Inc. End-of-arm tool having concentric suction cups, and related systems and methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS564393B2 (ja) * 1974-04-15 1981-01-29
DE2805377C3 (de) * 1978-02-09 1981-10-22 Mannesmann AG, 4000 Düsseldorf Verfahrbare Lastaufnahmevorrichtung
JP4673546B2 (ja) * 2002-10-25 2011-04-20 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 跳上げ式吸い口
JP5004714B2 (ja) * 2007-08-09 2012-08-22 株式会社小森コーポレーション 印刷機の給紙装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE22250C (de) * P. suckow & CO. in Breslau Neuerung an Quecksilber-Thermometern
US2247787A (en) * 1939-07-29 1941-07-01 Bowling Patents Man Corp Suction lifter
CA514399A (en) * 1955-07-05 Funk William Article handling apparatus
US3050175A (en) * 1959-08-24 1962-08-21 Otto G Jeddeloh Apparatus for edge spacing structurally stable sheets

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2035294A1 (de) * 1970-07-16 1972-01-20 Mabeg Maschinenbau Gmbh Nachf Trenn und Fördersauger für Bogenanleger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE22250C (de) * P. suckow & CO. in Breslau Neuerung an Quecksilber-Thermometern
CA514399A (en) * 1955-07-05 Funk William Article handling apparatus
US2247787A (en) * 1939-07-29 1941-07-01 Bowling Patents Man Corp Suction lifter
US3050175A (en) * 1959-08-24 1962-08-21 Otto G Jeddeloh Apparatus for edge spacing structurally stable sheets

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078671A (en) * 1974-12-12 1978-03-14 Lundstrom Goran O Arrangement at industrial robots
US4548396A (en) * 1982-05-26 1985-10-22 Agfa-Gevaert N.V. Object-holding device of sucker cup type and sheet dispensing apparatus incorporating such device
US4749329A (en) * 1982-12-06 1988-06-07 Motorola, Inc. Die pick mechanism for automatic assembly of semiconductor devices
US4640503A (en) * 1984-05-28 1987-02-03 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Sheet-separating and conveying suction device
US4736938A (en) * 1984-11-07 1988-04-12 Zvs Adamovske Strojirny, Koncernovy Podnik Suction feeder on a printing machine
US4674784A (en) * 1986-02-24 1987-06-23 Avondale Industries, Inc. Suction-type gripping mechanism with magnetic actuated vent valve
US5044868A (en) * 1988-12-10 1991-09-03 Palamatic Handling Systems Ltd Valve system for controlling a vacuum lifting apparatus
US5049030A (en) * 1989-06-30 1991-09-17 Lockert Timothy L Materials handling equipment
US5374158A (en) * 1990-01-16 1994-12-20 Aetrium, Inc. Probe and inverting apparatus
US5193776A (en) * 1990-10-05 1993-03-16 Smc Kabushiki Kaisha Mechanism for locking angular movement of suction pad
US6276891B1 (en) * 1998-08-12 2001-08-21 Automated Manufacturing Technology, Inc. Soft touch vacuum bar
US6561749B1 (en) * 1998-12-01 2003-05-13 Smc Kabushiki Kaisha Work sucking device
WO2000066481A1 (en) * 1999-05-04 2000-11-09 Piab Ab Vacuum operated lifting apparatus
US6612633B1 (en) * 1999-05-04 2003-09-02 Piab Ab Double bellows vacuum operated lifting apparatus
US6457759B1 (en) * 1999-10-13 2002-10-01 Nec Corporation Adsorption pen improved in operability
US7222901B2 (en) * 2001-09-21 2007-05-29 Festo Ag & Co. Vacuum handling device having a suction nozzle and a gripper part contained within a single housing
US20050258657A1 (en) * 2001-09-21 2005-11-24 Gunter Gebauer Vacuum handling device having a suction nozzle and gripper part contained within a single housing
US20030062735A1 (en) * 2001-09-28 2003-04-03 Pabst William V. Two way non leaking flow valve with full-open capability
US7374217B2 (en) * 2001-09-28 2008-05-20 Parker-Hannifin Corporation Two way non leaking flow valve with full-open capability
US20040139989A1 (en) * 2003-01-21 2004-07-22 Ilich Robert L. Egg lifting apparatus
US7083208B2 (en) * 2003-01-21 2006-08-01 Embrex, Inc. Vacuum assisted egg lifting apparatus having venturi assembly
US7543868B1 (en) * 2005-04-13 2009-06-09 The Caldwell Group, Inc. Mechanically actuated vacuum lifting device
US10751764B2 (en) * 2009-11-12 2020-08-25 Filter Safe Ltd. Filter cleaning system with a movable proximity nozzle
ITBS20110028A1 (it) * 2011-03-14 2012-09-15 Gimatic Spa Dispositivo di manipolazione azionato dal vuoto
US8943951B2 (en) * 2011-03-14 2015-02-03 Gimatic S.P.A. Vacuum-actuated handling device
US20150151436A1 (en) * 2013-11-29 2015-06-04 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Transport
US9138900B2 (en) * 2013-11-29 2015-09-22 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Transport for material picking up and placing
US10864555B2 (en) 2017-09-21 2020-12-15 AMP Robotics Corporation Systems and methods for robotic suction grippers
US11059075B2 (en) 2017-09-21 2021-07-13 AMP Robotics Corporation Systems and methods for robotic suction grippers
US11084175B2 (en) * 2018-12-13 2021-08-10 Amazon Technologies, Inc. End-of-arm tool having concentric suction cups, and related systems and methods

Also Published As

Publication number Publication date
NL7311161A (ja) 1974-02-13
DE2339487A1 (de) 1974-02-21
NL159630B (nl) 1979-03-15
FR2195753B1 (ja) 1975-03-07
ES193984U (es) 1974-11-16
JPS49132767A (ja) 1974-12-19
JPS5120110B2 (ja) 1976-06-22
FR2195753A1 (ja) 1974-03-08
ES193984Y (es) 1975-03-01
DE2339487B2 (de) 1975-06-12
IT994573B (it) 1975-10-20

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