US3117815A - Vacuum lifter - Google Patents

Vacuum lifter Download PDF

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Publication number
US3117815A
US3117815A US257035A US25703563A US3117815A US 3117815 A US3117815 A US 3117815A US 257035 A US257035 A US 257035A US 25703563 A US25703563 A US 25703563A US 3117815 A US3117815 A US 3117815A
Authority
US
United States
Prior art keywords
gasket
area
lifter
port
frame
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 - Lifetime
Application number
US257035A
Other languages
English (en)
Inventor
Jacob J Creskoff
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.)
Vacuum Concrete Corp of America
Original Assignee
Vacuum Concrete Corp of America
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 Vacuum Concrete Corp of America filed Critical Vacuum Concrete Corp of America
Priority to US257035A priority Critical patent/US3117815A/en
Priority to DEV24468A priority patent/DE1200497B/de
Priority to FR949622A priority patent/FR1372164A/fr
Priority to GB43711/63A priority patent/GB991688A/en
Priority to SE12606/63A priority patent/SE303183B/xx
Application granted granted Critical
Publication of US3117815A publication Critical patent/US3117815A/en
Priority to DK39664AA priority patent/DK102763C/da
Priority to BE643184A priority patent/BE643184A/xx
Priority to CH145564A priority patent/CH400490A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66C1/0281—Rectangular or square 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
    • B66C1/0231—Special lip configurations
    • 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

Definitions

  • a vacuum lifter comprising a frame having opposed surfaces, a first deformable resilient gasket secured to one of the surfaces defining an open inner chamber with the frame, means defining a port for connecting the inner chamber with a source of reduced pressure, a second deformable resilient gasket surrounding the first gasket and spaced therefrom defining an open outer chamber with the frame nad first gasket, and means defining fluid passage means smaller in area than the port interconnecting the chambers.
  • the ratio of the area of the port to the area of the fluid passage means should be between 1.1:1 and 96.0:1, the preferred range being between 25.0:1 and 50.0:1, an eminently satisfactory value having been found to be of the order of 36.0:1.
  • the gaskets are preferably compressible and may be suitably composed of a cellular elastomer in which the cells may be unconnected or interconnected depending upon the application contemplated for the lifter.
  • the ratio of the area within the second gasket to the area within the first gasket should be between 2.5 :1 and 16.0:1, a preferred range being between 4.0:1 and 13.0: 1, and an eminently satisfactory ratio being of the order of 5.0:1.
  • FIG. 1 is a somewhat diagrammatic representation in side elevation of a lifter applied to a load and connected with a vacuum pump through a reservoir;
  • FIG. 2 is a perspective view of a lifter conforming to the present invention
  • FIG. 3 is a bottom plan view of a lifter embodying the invention.
  • FIG. 4 is a section taken along line 4-4 of FIG. 3;
  • FIG. 5 is a section, on an enlarged scale taken along line 5-5 of FIG. 3.
  • a lifter 19 illustrated in the drawings comprises a frame or plate 12 to one surface of which are secured by means of adhesive, or in other suitable fashion, an inner gasket 14 and an outer gasket 16.
  • the inner gasket 14 defines with the frame or plate 12 an open chamber 18 containing a port 20 for communication with a source of reduced pressure.
  • a nipple 22 serves to connect the port 20 through a hose 24 with a reservoir 26 connected to the suction side of a vacuum pump 28.
  • the outer gasket 16 defines a chamber 30 with the frame or plate 12 and the inner gasket 14.
  • the inner chamber 18 is connected with the outer chamber 30 by passage means, which may assume the form of small diameter tubes 34, extending through the inner gasket 14 and having an aggregate cross sectional area less than the cross sectional area of the port 20 through which the inner chamber 18 communicates with the vacuum pump 28.
  • the surface of the frame or plate 12 opposed to that bearing the gaskets is provided with a pair of lugs 36, Welded or otherwise secured to the plate 12, containing openings 38 for the reception of hooks or cables 40 for cooperation with a crane or other lifting device for elevating the lifter together with its load 42.
  • the lifters that have been constructed in accordance with the present invention, is one having a lifting capacity of 5 tons wherein the volume within the inner gasket is 0.28 cubic feet and the volume within the outer gasket is 1.18 cubic feet.
  • a vacuum pump having a capacity of one-third horsepower is employed and the diameter of the port 20 is one and one-half inches.
  • Each of the four tubes 34 shown as providing communication between the inner and outer chambers has an inside diameter of one-eighth inch. With this equipment, a vacuum corresponding to twenty inches of mercury is established within a few seconds in both the inner and outer chambers.
  • atmospheric pressure is admitted to the inner chamber 18 whereby release of the load is also effected within a few seconds.
  • the inner and outer gaskets project substantially the same distance from the frame or plate and their composition may be similar.
  • the ratio of the area of the port 20 to the aggregrate area of the fluid passage means may be between 1.1:1 and 96.0: 1. However, for the more practical applications of the invention requiring quick response, the preferred range of such a ratio is between 25.0:1 and 50.0:1. A ratio of 36.0:1 has been found to be eminently satisfactory in conjunction with the lifter specifically described above.
  • the lifter In using the lifter, it will be moved into contact with the work 42 until the proximate surface of the inner gasket 14 contacts the surface of the work, whereupon the vacuum connection will be effected by manipulating a valve 44 to remove air from the inner chamber 18 very rapidly through the relatively large port 20.
  • the port 20 has an area exceeding the aggregate areas of the passages between the inner and outer chambers, the inner chamber 18 will become evacuated so that atmospheric pressure acting on the outer surface of the plate or frame 12 will cause the gasket 14 to become deformed so as to effect a relatively tight seal with the surface of the work.
  • a vacuum lifter comprising a frame having opposed surfaces, 21 first deformable resilient gasket secured to one of said surfaces defining an open inner chamber with said frame, means defining a port for connecting said inner chamber with a source of reduced pressure, a second deformable resilient gasket surrounding said first gasket and spaced therefrom defining an open outer chamber with said frame and first gasket, and means defining fluid passage means interconnecting said chambers, said passage means being smaller in area than said port.
  • a vacuum lifter according to claim 1 wherein the ratio of the area of said port to the area of said fluid passage means is between 25.0:1 and 50.0:1.
  • a vacuum lifter according to claim 1 wherein the ratio of the area of said port to the area of said fluid passage means is of the order of 36.0: 1.
  • a vacuum lifter according to claim 1 wherein the ratio of the area within said second gasket to the area Within said first gasket is between 2.531 and 16.021.
  • a vacuum lifter according to claim 1 wherein the ratio or" the area within said second gasket to the area Within said first gasket is between 4.0:1 and 13.0: 1.
  • a vacuum lifter according to claim l wherein the ratio of the area within said second gasket to the area within said first gasket is of the order of 5.021.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Gasket Seals (AREA)
  • Manipulator (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US257035A 1963-02-07 1963-02-07 Vacuum lifter Expired - Lifetime US3117815A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US257035A US3117815A (en) 1963-02-07 1963-02-07 Vacuum lifter
DEV24468A DE1200497B (de) 1963-02-07 1963-08-22 Vakuum-Greifvorrichtung
FR949622A FR1372164A (fr) 1963-02-07 1963-10-04 Dispositif de levage à ventouse
GB43711/63A GB991688A (en) 1963-02-07 1963-11-05 Improvements relating to vacuum lifting devices
SE12606/63A SE303183B (xx) 1963-02-07 1963-11-15
DK39664AA DK102763C (da) 1963-02-07 1964-01-27 Vakuumløfteorgan.
BE643184A BE643184A (xx) 1963-02-07 1964-01-30
CH145564A CH400490A (fr) 1963-02-07 1964-02-07 Ventouse pour engin de levage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US257035A US3117815A (en) 1963-02-07 1963-02-07 Vacuum lifter

Publications (1)

Publication Number Publication Date
US3117815A true US3117815A (en) 1964-01-14

Family

ID=22974626

Family Applications (1)

Application Number Title Priority Date Filing Date
US257035A Expired - Lifetime US3117815A (en) 1963-02-07 1963-02-07 Vacuum lifter

Country Status (7)

Country Link
US (1) US3117815A (xx)
BE (1) BE643184A (xx)
CH (1) CH400490A (xx)
DE (1) DE1200497B (xx)
DK (1) DK102763C (xx)
GB (1) GB991688A (xx)
SE (1) SE303183B (xx)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227481A (en) * 1963-02-07 1966-01-04 Vacuum Concrete Corp Of Americ Vacuum lifter
US3506297A (en) * 1968-02-14 1970-04-14 Vacuum Concrete Corp Of Americ Vacuum lifter with prestressing action
US4166648A (en) * 1977-09-26 1979-09-04 Creskoff Jacob J Vacuum lifting apparatus
US4600349A (en) * 1984-02-15 1986-07-15 Karl Mengele & Sohne Apparatus for transporting and positioning sheet metal plates
US4902331A (en) * 1987-07-02 1990-02-20 Saint-Gobain Vitrage Process for bending a glass sheet and support device adapted to this process
US20030120387A1 (en) * 2001-12-20 2003-06-26 Abb Automation Inc. End effector for transferring articles
US20070033778A1 (en) * 2002-12-30 2007-02-15 Sara Lee Corporation Handling Method and Device for Simultaneous Processing of Textile Pieces
US20080001341A1 (en) * 2005-02-08 2008-01-03 Wronski Richard E Apparatus and method for moving envelopes
US20080142398A1 (en) * 2004-09-13 2008-06-19 Meadwestvaco Corporation Packaged banded envelopes
US20080210583A1 (en) * 2004-09-13 2008-09-04 Meadwestvaco Corporation Banded envelopes
US20150239131A1 (en) * 2012-10-23 2015-08-27 Fromageries Bel Device for gripping at least one deformable product
US20160053893A1 (en) * 2014-08-20 2016-02-25 Vacuworx Global Llc Seal for a vacuum material lifter
US20170113904A1 (en) * 2015-10-22 2017-04-27 Vacuworx Global, LLC Truck-Mounted Vacuum Material Handler and Quick Disconnect
US10378652B2 (en) 2014-08-20 2019-08-13 Vacuworx Global, LLC Seal for a vacuum material lifter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978269A (en) * 1989-03-02 1990-12-18 Toter, Inc. Vacuum controlled lifting apparatus
ITPD20090180A1 (it) * 2009-06-23 2010-12-24 Airsoft S R L Struttura di terminale di presa a depressione per dispositivo automatico di movimentazione di oggetti e dispositivo automatico di movimentazione incorporante detto terminale

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3055694A (en) * 1961-05-15 1962-09-25 Billner Vacuum Concrete S A Vacuum lifter
US3063746A (en) * 1960-03-23 1962-11-13 Pittsburgh Plate Glass Co Universal vacuum cup
US3089723A (en) * 1961-12-26 1963-05-14 Vacuum Concrete Corp Of Americ Portable handling implement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1850562U (de) * 1961-01-02 1962-04-26 Steinbock G M B H Hebezeug mit zum erfassen bestimmtem sauger.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063746A (en) * 1960-03-23 1962-11-13 Pittsburgh Plate Glass Co Universal vacuum cup
US3055694A (en) * 1961-05-15 1962-09-25 Billner Vacuum Concrete S A Vacuum lifter
US3089723A (en) * 1961-12-26 1963-05-14 Vacuum Concrete Corp Of Americ Portable handling implement

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227481A (en) * 1963-02-07 1966-01-04 Vacuum Concrete Corp Of Americ Vacuum lifter
US3506297A (en) * 1968-02-14 1970-04-14 Vacuum Concrete Corp Of Americ Vacuum lifter with prestressing action
US4166648A (en) * 1977-09-26 1979-09-04 Creskoff Jacob J Vacuum lifting apparatus
US4600349A (en) * 1984-02-15 1986-07-15 Karl Mengele & Sohne Apparatus for transporting and positioning sheet metal plates
US4902331A (en) * 1987-07-02 1990-02-20 Saint-Gobain Vitrage Process for bending a glass sheet and support device adapted to this process
US4950320A (en) * 1987-07-02 1990-08-21 Saint-Gobain Vitrage Support device adapted for bending glass sheet
US20030120387A1 (en) * 2001-12-20 2003-06-26 Abb Automation Inc. End effector for transferring articles
US6860531B2 (en) * 2001-12-20 2005-03-01 Abb Inc. Gripping and vacuum end effector for transferring articles
US20070033778A1 (en) * 2002-12-30 2007-02-15 Sara Lee Corporation Handling Method and Device for Simultaneous Processing of Textile Pieces
US8060998B2 (en) * 2002-12-30 2011-11-22 Hbi Branded Apparel Enterprises, Llc Handling method and device for simultaneous processing of textile pieces
US20080142398A1 (en) * 2004-09-13 2008-06-19 Meadwestvaco Corporation Packaged banded envelopes
US20080210583A1 (en) * 2004-09-13 2008-09-04 Meadwestvaco Corporation Banded envelopes
US20110089069A1 (en) * 2004-09-13 2011-04-21 Meadwestvaco Corporation Packaged banded envelopes
US7789226B2 (en) 2004-09-13 2010-09-07 Meadwestvaco Corporation Packaged banded envelopes
US7861862B2 (en) 2004-09-13 2011-01-04 Meadwestvaco Corporation Packaged banded envelopes
US7637711B2 (en) 2005-02-08 2009-12-29 Meadwestvaco Corporation Apparatus with suction head for moving envelopes
US20080001341A1 (en) * 2005-02-08 2008-01-03 Wronski Richard E Apparatus and method for moving envelopes
US20150239131A1 (en) * 2012-10-23 2015-08-27 Fromageries Bel Device for gripping at least one deformable product
US10442090B2 (en) * 2012-10-23 2019-10-15 Fromageries Bel Device for gripping at least one deformable product
US20160053893A1 (en) * 2014-08-20 2016-02-25 Vacuworx Global Llc Seal for a vacuum material lifter
US9885419B2 (en) * 2014-08-20 2018-02-06 Vacuworx Global Llc Seal for a vacuum material lifter
US10378652B2 (en) 2014-08-20 2019-08-13 Vacuworx Global, LLC Seal for a vacuum material lifter
US11078051B2 (en) 2014-08-20 2021-08-03 Vacuworx Global, LLC Seal for a vacuum material lifter
US11519506B2 (en) * 2014-08-20 2022-12-06 Vacuworx Global, LLC Seal for a vacuum material lifter
US20170113904A1 (en) * 2015-10-22 2017-04-27 Vacuworx Global, LLC Truck-Mounted Vacuum Material Handler and Quick Disconnect

Also Published As

Publication number Publication date
DE1200497B (de) 1965-09-09
DK102763C (da) 1965-10-04
SE303183B (xx) 1968-08-19
CH400490A (fr) 1965-10-15
GB991688A (en) 1965-05-12
BE643184A (xx) 1964-05-15

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