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Class Information
Number: 294/64.1
Name: Handling: hand and hoist-line implements > Vacuum
Description: Devices depending upon the action of a negative pressure to handle a load.










Sub-classes under this class:

Class Number Class Name Patents
294/64.3 By positive fluid stream directed against article 87
294/65 Frames 220
294/64.2 Venturi effect 63


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
7950140 Connection device for electric components May. 31, 2011
7938466 Suction gripper device May. 10, 2011
7938467 Load weighting control apparatus May. 10, 2011
7926167 Method to assemble a disk drive Apr. 19, 2011
7914057 Vacuum anchor Mar. 29, 2011
7886427 Component mounting head Feb. 15, 2011
7887109 Stepwise powerful suction device Feb. 15, 2011
7878564 Vacuum type pickup apparatus and vacuum type pickup method Feb. 1, 2011
7845697 Vacuum suction device Dec. 7, 2010
7841633 Package pick-off and delivery device Nov. 30, 2010
7823940 Device for gripping a flexible container Nov. 2, 2010
7810772 Column suction-holding head and column mounting method Oct. 12, 2010
7802830 Method and device for handling an article in the course of semiconductor fabrication Sep. 28, 2010
7793408 Apparatus for transferring semiconductor chip Sep. 14, 2010
7726715 Vacuum suction head Jun. 1, 2010
7722309 Apparatus for picking and placing workpiece May. 25, 2010
7717482 Suckingly conveying apparatus May. 18, 2010
7712807 Vacuum cup with relief port and method of moving and releasing an object May. 11, 2010
7712806 Thin film forming apparatus, film supplier, film cassette, transport mechanism and transport method May. 11, 2010
7690705 Vacuum chuck useful for affixing cover seals to hard disk drives Apr. 6, 2010
7690869 Non-contact transport apparatus Apr. 6, 2010
7677622 Method for operating a vacuum handling device Mar. 16, 2010
7673914 Automatic alert device for suction cup Mar. 9, 2010
7669903 Ultra low contact area end effector Mar. 2, 2010
7665783 Vacuum suction head, and vacuum suction device and table using the same Feb. 23, 2010
7661736 Underpressure surface gripping device Feb. 16, 2010
7654596 Endeffectors for handling semiconductor wafers Feb. 2, 2010
7650691 Component supply head device and component mounting head device Jan. 26, 2010
7650688 Bonding tool for mounting semiconductor chips Jan. 26, 2010
7648182 Terminal portion of a robotic pick-up element provided with vacuum suction cups Jan. 19, 2010
7637548 Vacuum suction apparatus having negative pressure actuated vacuum generator switching mechanism Dec. 29, 2009
7631911 Transporting machine Dec. 15, 2009
7631912 Lifting device for a vacuum transfer system Dec. 15, 2009
7625027 Vacuum actuated end effector Dec. 1, 2009
7618074 Handling apparatus for passing electronic components, in particular ICs, to a testing apparatus Nov. 17, 2009
7603767 Workpiece picking and placing method Oct. 20, 2009
7603807 Vacuum pick-up device with mechanically assisted release Oct. 20, 2009
7591495 Pick-up head device with a pushing mechanism Sep. 22, 2009
7578054 Linear driving mechanism for electronic component mounting apparatus Aug. 25, 2009
7568747 Curved and angular panel arm Aug. 4, 2009
7556298 Apparatus and method for positioning current collectors in an electrochemical cell Jul. 7, 2009
7546679 High speed valve assembly Jun. 16, 2009
7543868 Mechanically actuated vacuum lifting device Jun. 9, 2009
7543867 Vacuum gripping system for positioning large thin substrates on a support table Jun. 9, 2009
7520714 Handling apparatus Apr. 21, 2009
7497824 Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery Mar. 3, 2009
7490398 Methods for assembling a disk drive using robotic end effector Feb. 17, 2009
7490878 ESD safe vacuum wand tip Feb. 17, 2009
7484782 Multi-axis pick and place assembly Feb. 3, 2009
7485090 Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery Feb. 3, 2009

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16










 
 
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