Superstar singer Michael Jackson co-patented a "Method and means for creating anti-gravity illusion" in 1993.
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| Number | Title | Issue Date |
| 7837073 | Collapsible spreader An improved collapsible spreader with a spread rate selection mechanism including a knob and a rotatable cup-shaped structure. The cup-shaped structure includes an elongated setting tab and a thirty-six step edge corresponding to thirty-six spread rate settings on t... | 11/23/2010 |
| 7337926 | Intermodal powder/bulk freight container The present invention teaches that air may be injected into the sloping bottom of a bulk dry particulate cargo container (micron-sized through quarry-sized dry particulate) accompanied by traditional conveyance-variety pneumatic air, causing the bulk dry particulate... | 03/04/2008 |
| 7104425 | Intermodal bulk dry particulate cargo container and method A method for loading and unloading of dry bulk freight containers vertically, and a device in the form of an improved intermodal dry bulk freight container for vertical loading and unloading. Standardized corner locks may be used and dimensions may be selected so as... | 09/12/2006 |
| 6189802 | Lawn and garden spreader for pelletized mulches and the like A lawn and garden spreader is adapted for efficiently spreading pelletized mulches and other like applications larger in size than that typically associated with lawn and garden applications. The spreader includes a gravity flow hopper having an outlet ap... | 02/20/2001 |
| 5842648 | Molded broadcast spreader A broadcast spreader constructed from two separate and rotationally molded parts; one molded part integrates the handle and hopper assemblies while the other molded part forms the base assembly that supports the wheels for the spreader. A pair of dovetail... | 12/01/1998 |
| 5607079 | Collapsible drop spreader A drop spreader having a hopper with a series of materials-dispensing apertures therein supported by a pair of wheels, an upper U-shaped frame pivotally connected to a pair of spaced-apart leg members supported on the hopper for use as a handle for the sp... | 03/04/1997 |
| 5597092 | Collapsible drop spreader A collapsible drop spreader having a hopper for supporting a wheel axle bearing member, an upper U-shaped frame pivotally connected to a pair of parallel leg members supported on the hopper for use as a handle for the spreader, the hopper further having w... | 01/28/1997 |
| 5570814 | Collapsible broadcast spreader A collapsible broadcast spreader having a lower frame for supporting a wheel axle, an upper frame pivotally connected to the lower frame for use as a handle for the spreader when the upper frame and lower frame are in an extended position, a hopper also s... | 11/05/1996 |
| 5288017 | Collapsible spreader A collapsible spreader having all parts pre-assembled that requires no tools for its transformation into an operative device and that includes a wheel assembly, a two-part frame member, whose lower part is affixed to the wheel assembly and supports a high... | 02/22/1994 |
| 5035352 | Adjustable apparatus for spreading mortar and method therefor This invention discloses an adjustable apparatus for spreading mortar onto bricks or blocks. The apparatus utilizes augers and is readily adjusted to extrude beads of mortar onto the proper portions of bricks/blocks having different widths. A trowel membe... | 07/30/1991 |
| 4671434 | Fertilizer spreader The present invention relates to a fertilizer spreader having a hopper for holding a granular material. A handle is connected to the hopper for manipulating the hopper. The hopper has a discharge aperture in its lower portion to allow material to discharg... | 06/09/1987 |
| 4635818 | Spreader A spreader particularly adapted for manual operation over a residential lawn includes a one-piece hopper made of corrosion resistant material. Lugged wheels connect with a shaft which is rotatively carried by and extends through a lower part of the hopper... | 01/13/1987 |
| 4624195 | Gravity spreader A gravity spreader includes a hopper having openings in its bottom through which material flows when a shutter is not in a closed position with the position of the shutter determining the rate of flow of material. A fluted roller allows the material to fl... | 11/25/1986 |
| 4540312 | Material spreader system with column bypass A material spreader system is designed to dispense a topping material onto the surface of a plastic substance lying within an area having a length, width and opposing sides. The material spreader system also includes features which enable it to dispense t... | 09/10/1985 |
| 4487370 | Seed and fertilizer spreader A broadcasting apparatus for pulverant or granular material including a frame supported by wheels, an axle extending between the wheels and connected in driving relationship with at least one of the wheels, a material hopper mounted on the frame and havin... | 12/11/1984 |
| 4438873 | Ground driven top dresser utilizing special clutch mechanism An octogonally configured cam has four flats located radially outward a greater distance than the four intervening flats. The various flats are successively engageable with a pivotal arm to engage and disengage a clutch mechanism and thus start and stop a... | 03/27/1984 |
| 4422562 | Ground control system Ground control system for use with a spreader of dry bulk material at a predetermined rate and speed. The spreader mounts on a vehicle or like structure. The ground control system has input variables of travel rate of the vehicle and conveyor rate of the ... | 12/27/1983 |
| 4402438 | Spreader control A lawn spreader for particulate material such as grass seed or fertilizer has a slidable control knob immediately adjacent the handle gripping portion for movement by one or more fingers to control the rate of feed of particulate material from the spreade... | 09/06/1983 |
| 4289256 | Tramlining device for seed drill A tramlining device is provided for a seed drill having shutters associated with respective seed spouts and controlled by individual fluid pressure operated actuators for improved flexibility in selecting the tramline spacing. The actuators are preferably... | 09/15/1981 |
| 4206857 | Agricultural distributor having a control valve for plural outlets The present invention relates to an improved agricultural distributor including a hopper having a side wall structure and bottom and a plurality of spaced apart openings provided therein for dispensing material from said hopper. A cam type rotary flow con... | 06/10/1980 |
| 4180184 | Fertilizer spreader A drop type spreader for handling fertilizer, grass seed or the like for lawns and residential use has a flow control hand grip lever positioned at the spreader handles. The lever is gripped together with one of the handles for initiating flow, and the fl... | 12/25/1979 |
| 4172537 | Spreader for granular fertilizer and chemicals An elongated mobile frame having supporting wheels at its rear end and a pair of elongated support arms pivotally secured at their inner ends to the rear end portion of the frame for movements between operative positions projecting transversely from the f... | 10/30/1979 |
| 4121733 | Spreader having an anticlogging mechanism Our invention relates to a wheeled fertilizer or other granular material spreader which is pushed over the area or surface to be treated. The granular material is dropped through feed openings onto the surface to be treated, the metering of the granular m... | 10/24/1978 |
| 4106704 | Spreader (broadcast) Our invention relates to a wheeled fertilizer spreader which is pushed over the area which is to be fertilized or chemically treated and in which the fertilizer, chemical or other granular material is broadcast by being dropped onto a horizontal impeller ... | 08/15/1978 |