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Class Information
Number: 451/100
Name: Abrading > Machine > Sandblast > Abradant supply structure > Multiple hopper
Description: Abrading machine provided with at least two receptacles for holding the abrasive material wherein one receptacle feeds abrasive by gravity to a second receptacle which subsequently feeds abrasive to mixing chamber for the abrasive propellant.

Patents under this class:

Patent Number Title Of Patent Date Issued
8398460 Apparatus and method for dispensing abrasive particulate material into a stream of gas Mar. 19, 2013
8342912 Abrasive water jet processing machine Jan. 1, 2013
8277288 Particle blast cleaning apparatus with pressurized container Oct. 2, 2012
7980923 Powder blast tool, powder reservoir, insert for powder reservoir and method of dental treatment Jul. 19, 2011
7232360 Uninterrupted abrasive fluid supply Jun. 19, 2007
7052362 Blendable blasting media and method of reusing and discharging same May. 30, 2006
7052377 Apparatus and method for feeding slurry May. 30, 2006
6848979 Concrete blasting device with clear wand, stiff brush, recovery cylinder, and recirculating cylinder Feb. 1, 2005
6626737 Machine to produce and propel sublimable solid particles Sep. 30, 2003
6390898 Method and device for treating, especially cleaning, abrasive clearing or stripping of coatings, graffiti or other superficial soiling on parts, work pieces or surfaces May. 21, 2002
6248004 Multiphase nucleation reactor injector for hydroblast cleaning of surfaces Jun. 19, 2001
6200202 System and method for supplying slurry to a semiconductor processing machine Mar. 13, 2001
6200203 Abrasive delivery system Mar. 13, 2001
6152810 Blasting media apparatus Nov. 28, 2000
6126525 Oscillating control cage for a blast wheel Oct. 3, 2000
6059641 Powder/granule feeder and its application apparatus May. 9, 2000
6000995 Unit for the dosage of grained, pourable materials, in particular blasting abrasives Dec. 14, 1999
5839951 Separator for blasting apparatus Nov. 24, 1998
5800246 Abrasive blasting apparatus Sep. 1, 1998
5695385 Recyclable abrasive blasting system and method Dec. 9, 1997
5643058 Abrasive fluid jet system Jul. 1, 1997
5616067 CO.sub.2 nozzle and method for cleaning pressure-sensitive surfaces Apr. 1, 1997
5591064 Blasting apparatus and method for blast cleaning a solid surface Jan. 7, 1997
5562531 Abrasive brasting apparatus and die finishing apparatus using the same Oct. 8, 1996
5556325 Pressurization system for abrasive supply pot Sep. 17, 1996
5512005 Process and apparatus for automatically engraving stone memorial markers Apr. 30, 1996
5505653 Abrasive/water jet cutting apparatus Apr. 9, 1996
5441443 Apparatus for blast cleaning surfaces disposed at angles within 45 degrees of vertical Aug. 15, 1995
5433653 Blasting apparatus, components thereof and related methods for use thereof Jul. 18, 1995
5431594 Pressurization system for abrasive supply pot Jul. 11, 1995
5334019 Dental air abrasive system Aug. 2, 1994
5295333 Machining device for machining precision workpieces in a chamber Mar. 22, 1994
5212911 Abrasive particle blasting device and method May. 25, 1993
5201150 Wet abrasive blasting apparatus using pressurized slurry Apr. 13, 1993
5056275 Continuously-operable abrasive blasting apparatus Oct. 15, 1991
4984397 Abrasive blasting apparatus Jan. 15, 1991
4862649 Material transfer system Sep. 5, 1989
4801333 Method of cleaning articles in a tank Jan. 31, 1989
4723387 Abrasive-jet cutting system Feb. 9, 1988
4669230 Wet blasting machine with automatic control system for slurry concentration Jun. 2, 1987
4593497 Abrasive seal recovery system Jun. 10, 1986
4569159 Abrasives distributor Feb. 11, 1986
4563841 Internal grit blast weld joint cleaner Jan. 14, 1986
4439073 Filling hole swing valve for sandblasters Mar. 27, 1984
4319435 Blasting machine for deburring workpieces Mar. 16, 1982

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