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Class Information
Number: 52/197
Name: Static structures (e.g., buildings) > Fluent material hopper or storage container with material port > Bottom outlet port; e.g., hopper bottom
Description: Structure in which the port is located in the bottom, i.e., floor of the container or receptacle structure.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8677705 Grain bin support structure for conditioning system and method of installing same Mar. 25, 2014
8668424 Circular bin unload system and method Mar. 11, 2014
8584905 Hopper bottom for storage bin Nov. 19, 2013
8434278 Storage bin support system May. 7, 2013
8312818 Modular vibratory floor Nov. 20, 2012
7513280 Apparatus and methods for discharging particulate material from storage silos Apr. 7, 2009
7487619 Water tank Feb. 10, 2009
6971495 Mass flow hopper and method of manufacture Dec. 6, 2005
6931801 Live recovery storage structure Aug. 23, 2005
6871457 Vessel for enabling a uniform gravity driven flow of particulate bulk material therethrough, and direct reduction reactor incorporating same Mar. 29, 2005
6447674 Gravity flow sludge load-out system Sep. 10, 2002
6330767 Unloading system for particulate materials bins Dec. 18, 2001
6328184 Wine storage tank Dec. 11, 2001
6273647 Pressure discharge railway hopper car Aug. 14, 2001
6250514 Container for storing and discharging particulate material, in particular pulp chips Jun. 26, 2001
6238145 Silo with dense phase discharge May. 29, 2001
6139241 Multi-faceted modular silo for bulk solids Oct. 31, 2000
6055781 Archbreaking hopper for bulk solids May. 2, 2000
5956908 Concrete container Sep. 28, 1999
5586678 Bulk hopper tank lid opener assembly Dec. 24, 1996
5319902 Mass tower and method of making the same Jun. 14, 1994
5224312 Venting fabric Jul. 6, 1993
5205094 Silo including a device for preventing obstruction to air flow Apr. 27, 1993
5108010 Storage silo with improved material flow Apr. 28, 1992
5009046 Reducing hoop stress in silos Apr. 23, 1991
4989380 Silo for pulverulent and fine-grained bulk materials Feb. 5, 1991
4928449 Elevated sundeck May. 29, 1990
4915056 Automatic dough ball feeding machine Apr. 10, 1990
4907721 Apparatus for removing residual stored material Mar. 13, 1990
4893736 Grain wagon box with safety grid Jan. 16, 1990
4881665 Suspended flexible membrane storage silo and article dispenser Nov. 21, 1989
4841693 Particulate material storage structure Jun. 27, 1989
4790111 Reducing hoop stress in silos Dec. 13, 1988
4702364 Silo chute hopper attachment Oct. 27, 1987
4671030 Bulk silo with aerated mixing or homogenizing chamber Jun. 9, 1987
4626166 Method for the placement of a trailer-mounted sand hopper Dec. 2, 1986
4625478 Liner for tower silo and method of installing same Dec. 2, 1986
4621972 Silo mover Nov. 11, 1986
4603795 Center unloading bin for storing free-flowing granular material with side conveyor discharge Aug. 5, 1986
4602463 Tank construction having a floor formed of interconnected panels Jul. 29, 1986
4566232 Large volume silo for bulk material, particularly raw cement powder Jan. 28, 1986
4563844 Grain elevator Jan. 14, 1986
4561222 Large container especially a silo Dec. 31, 1985
4539782 Silo for loose material in powder form Sep. 10, 1985
4479334 Liner for tower silo and method of installing same Oct. 30, 1984
4449646 Bin for storing and discharging free-flowing granular material May. 22, 1984
4361254 Hopper for storing free flowing solid material Nov. 30, 1982
4265065 Silo May. 5, 1981
4249351 Self-erecting surge bin Feb. 10, 1981
4223044 Method for breaking a bridge of particulate and ground substances Sep. 16, 1980

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