...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7353776 | Floor covering for an animal house Floor covering for an animal house for beef animals and dairy animals includes an elastomeric mat which can be fixed to a floor or floot slat by screws. Rigid strips are located at the base of the mat for securing the screws which are coverable by the mat when it is... | 04/08/2008 |
| 7185610 | Heated flooring module for livestock stables A heated flooring module is provided for livestock stables, which includes an upper plaque, for walking on, which is essentially level; a hollowed central section, with no bottom surface, whose upper surface is equipped with at least one continuous runnel, adapted t... | 03/06/2007 |
| 7107935 | Floor covering for an animal house Floor covering (I) for an animal house for beef animals and dairy animals comprises an elastomeric mat (2) which can be fixed to a floor or floor slat by screws (8). Rigid strips (6) are located at the base (7) of mat (2) for secur... | 09/19/2006 |
| 7066111 | Animal pen flooring system An animal confinement pen flooring system, particularly adapted for swine farrowing operations, includes at least first and third rows of spaced-apart molded plastic foraminous flooring panels and an intermediate row of cast iron foraminous flooring panels, all of t... | 06/27/2006 |
| 6923145 | Flume flush floor for livestock A floor arrangement for use with livestock such as in a barn is in the form of a concrete panel and includes plural spaced, elongated, linear flumes, or channels, disposed within the panel and extending its length. Each flume is generally cylindrical in shape and op... | 08/02/2005 |
| 6889631 | Animal pen flooring system An animal confinement pen flooring system, particularly adapted for swine farrowing operations, includes at least first and third rows of spaced-apart molded plastic foraminous flooring panels and an intermediate row of cast iron foraminous flooring panels, all of t... | 05/10/2005 |
| 6499433 | Hog farming process and barn A barn for raising hogs includes walls, a roof, and a floor within the structure for supporting the hogs, the floor being solid such that materials on the floor settle on the floor without passing therethrough and being capable of supporting an animal and... | 12/31/2002 |
| 6237536 | Animal box for breeding An animal box for animal breeding including an endless belt that defines a support surface for the animals. The support surface is intermittently movable in the longitudinal direction of the box, while the animals are on the surface. The portion of the su... | 05/29/2001 |
| 6095235 | Heating element for a floor A heating element (12) is described for use in flooring, preferably for pigstys (3). The heating elements consist of a liquid filled chamber (16). The liquid in the chamber is brought into heat transmitting connection with a conduit (24) connected with a ... | 08/01/2000 |
| 5967092 | Drained and cushioned feed lot for livestock A base for a feed lot composed of baled rubber material such as waste tires. The bales are placed beneath the surface of the feed lot and covered with earth. Any gaps between bales are filled with sand to provide for good drainage of the lot.... | 10/19/1999 |
| 5957088 | Poultry flooring system A poultry breeder flooring system including a plurality of spaced apart and substantially parallel wire mesh channel defining beams, a wire mesh floor supported on the channel defining beams and a fastener mechanism interconnecting the floor and the chann... | 09/28/1999 |
| 5937793 | Flooring system for farrowing pen Flooring for a farrowing crate particularly for pigs is formed of beams and support flanges which are manufactured of glass fiber reinforced resin so as to be electrically insulating. The beams span a pit for receiving manure. On top of the supporting str... | 08/17/1999 |
| 5813365 | Modular flooring system A flooring system for use in an animal shelter. The flooring system is modular and includes a disassemblable base frame having, as components thereof, a pair of end crossbars, a plurality of longitudinally extending support members, and interconnecting el... | 09/29/1998 |
| 5758462 | Air floor grating system An air floor for curing compost made of a series of light weight, relatively short grates each containing a plural of air slits narrow at the top of the grate openings and progressively widening toward the bottom of the opening and structure supporting th... | 06/02/1998 |
| 5687534 | Frame element and insertion element for stables A modular flooring system for stables is made up of a plurality of modules that each include a frame element (1) and an insertion element (30). Each frame element (1) is equipped with supporting profiles (6,7) intended for the support of the insertion ele... | 11/18/1997 |
| 5456209 | Preformed heated flooring system for stables and other animal shelters The present invention is a preformed, shaped part that forms a surface for farm animals to stand on in stables. The preformed parts are made to interconnect into an intermediate floor for mounting on a grating. The preformed, shaped part, when assembled, ... | 10/10/1995 |
| 4953501 | Flooring unit A flooring unit for an animal enclosure such as a chicken coop or pen is disclosed. The unit is of relatively thin and flat rectangular shape overall and was a planar tread surface, two transverse elongate mounting members at respectively opposite ends an... | 09/04/1990 |
| 4362128 | Livestock flooring A coated animal flooring which is raised off a barn or crate floor but requires no independent framing. A deck is formed of filler wires extending in one direction and base wires extending perpendicular thereto. The wires are either welded or crimped toge... | 12/07/1982 |
| 4356792 | Flooring system A flooring system comprising a plurality of spaced load-bearing joists and flooring members which are carried thereby, extending at right-angles thereto. Each flooring member has a web and a pair of downwardly-depending flanges, and each joist is of gener... | 11/02/1982 |
| 4329939 | Flooring unit A flooring unit for hog barns and the like is disclosed. The unit is a one-piece structural foam moulding having a tread surface formed with longitudinal rows of slots for permitting animal droppings and the like to pass through the unit. The unit is rein... | 05/18/1982 |
| 4258662 | Slotted panel assembly A slotted floor section for supporting animals, as hogs and cattle. The floor section has a plurality of longitudinal members having plywood cores located in side-by-side laterally spaced positions. A plurality of transverse members are located adjacent t... | 03/31/1981 |
| 4182271 | Self cleaning animal floor assembly An elongated sheet of stainless steel material includes alternately spaced apart laterally extending slots and ridges formed by removing a length of material and then applying downward pressure within the slots to form downwardly extending rounded slot ed... | 01/08/1980 |
| 4176622 | Floor grid for use in keeping animals A floor grid for use in keeping animals, comprises a plurality of juxtaposed wooden bars which are transversely spaced apart to define gaps between them, and a covering on the top of each bar. The covering has downwardly depending longitudinal edge portio... | 12/04/1979 |