Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4583715 | Safety gate A safety barrier of the type for a hall or doorway to prevent passage of children, animals or the like. The barrier is expandable to completely block the passageway, and is provided with a pivoting gate in a portion thereof which may be opened as required... | 04/22/1986 |
| 4576364 | Portable wind screen A portable screen of fabric is held upright by a plurality of hollow poles clamped to the fabric by C clamps, preferably one the length of the pole. A stake is telescoped within each hollow pole, and held in an extended position (to adjust the height of t... | 03/18/1986 |
| 4558850 | Noise barrier A concrete serpentine noise barrier formed by a series of vertically disposed concrete panels that are placed in end to end abutment. Each adjacent pair of panels is provided with a socket-like joint that allows the panels to be angularly adjusted in asse... | 12/17/1985 |
| 4558851 | Fence of wire latticework Fence of wire latticework comprises lattice bodies composed of vertical wire members, and horizontal wire members, supports for supporting the lattice bodies, and connecting means for connecting the lattice bodies and the supports. Furring strips are not ... | 12/17/1985 |
| 4512556 | Slat retaining means for chain link fences Slat retaining means for chain link fences of the type made of linking wires. A plurality of parallel slats woven through the wires the parallel slats extending in a first direction. An aperture in each parallel slat and a connecting member inserted throu... | 04/23/1985 |
| 4497483 | Device for dividing ice-hockey rinks A device for dividing an ice-hockey rink into at least two smaller rink parts comprises a plurality of straight sideboard elements (8a) and a plurality of curved sideboard elements (8b). The sideboard elements (8a, 8b) are provided with means (16, 20, 21)... | 02/05/1985 |
| 4471947 | Fence Construction A modular fence construction includes a plurality of panels which extend between adjacent fence posts and are releasably connected to the posts. In a preferred embodiment, the panels are fabricated before being connected to the posts and can be selectivel... | 09/18/1984 |
| 4465262 | Portable expandable barrier An improved portable expandable barrier is provided which comprises a pair of fences slideably interconnected and releasably held in a desired orientation by locking means such as lock set cylinders. Preferably, one or both fences include telescoping sect... | 08/14/1984 |
| 4390165 | Decorative glass panel railing assembly A decorative glass panel railing assembly includes a plurality of spaced apart vertical line posts, each joined to an anchor plate which is secured to a floor or deck surface. Each line post includes a pair of channels formed therein on opposing sides the... | 06/28/1983 |
| 4381160 | Post support bracket assembly A corner bracket assembly is adapted for mounting and support of a newel or post and comprises a plurality of corner brackets each having oppositely directed flanges at its lower edge for attachment to a rigid member, such as, a floor surface so as to for... | 04/26/1983 |
| 4380327 | Safety barrier A collapsible, durable, mildew proof safety barrier comprising a plurality of vertical support members which are supported in sleeves inserted within the ground, at least one flexible restraining panel connected between the vertical support members, a con... | 04/19/1983 |
| 4369953 | Fence constructions and in fence elements therefor The invention provides a new fence system permitting the construction of privacy fences; perimeter fences; boundary fences and rail fences using a small number of different fence elements. These elements consist of a hollow elongated post/rail element of ... | 01/25/1983 |
| 4364546 | Modular fencing assembly A modular fencing assembly comprising a plurality of posts retained in position at spaced intervals by a foundation, lower channels removably attachable to and extending between adjacent pairs of posts and adapted to engage a fencing panel, upper channels... | 12/21/1982 |
| 4357000 | Molded plastic fence section The present invention relates to an improved ornamental integrally molded plastic fence section. The fence section generally includes a pair of substantially parallel stringers with a plurality of pickets formed integral with the stringers. Said pickets b... | 11/02/1982 |
| 4339114 | Fencing system A fencing system designed particularly for snow and sand fencing is disclosed. The fencing system consists of a framing structure for supporting a fence face between spaced upright members. The fence face is constructed of a strong flexible mesh such as a... | 07/13/1982 |
| 4312166 | Wall assemblies Wall assemblies useful for a wide variety of different applications can be economically constructed utilizing extruded polymer panels shaped so as to have sloped positioning walls located adjacent to interlocking connecting elements at their side edges. T... | 01/26/1982 |
| 4311199 | Reuseable portable firewall A portable firewall having in combination a plurality of modular panels fabricated from a fire resistant material; support rods constructed for placement at spaced intervals across a ground terrain and fasteners for quick attachment of the modular panels ... | 01/19/1982 |
| 4306631 | Noise barrier wall or building panel and mounting assembly A noise barrier or other type wall or building assembly includes a plurality of spans each extending between spaced apart posts and having top and bottom girts affixed to the posts and in turn supporting a plurality or series of vertically disposed panels... | 12/22/1981 |
| 4300313 | Lift-out gate A fence or railing construction includes two vertical spaced-apart railing posts defining a gateway therebetween and each provided with an elongated vertical guide member which projects into the gateway. A gate is provided with vertical end posts in the f... | 11/17/1981 |
| 4272060 | Fence system A privacy fence is disclosed in which ease of assembly is emphasized in a system combining predominantly steel elements. The steel rails are nominally four sided, but they are open on one side to permit the insertion of steel fence panels or louvers. A sp... | 06/09/1981 |
| 4271622 | Dasher board for ice skating rinks and method of making same A dasher board for ice skating rinks is disclosed comprising a flat front panel member with a flange adjacent the lower edge to support the panel in a vertical upright position. The panel has a sheet member containing indicia in the form of advertising or... | 06/09/1981 |
| 4270458 | Overhead track assembly for amusement-park ride An overhead track assembly for an amusement-park ride has a plurality of bases adapted to rest on the ground and each supporting an upright post having an upper end forming a support surface and having a pin projecting upwardly from this support surface. ... | 06/02/1981 |
| 4262882 | Fence structure having improved corner construction A fence structure includes vertically oriented wooden panels supported by vertical metal posts and horizontal metal rails and maintains an attractive appearance at the corners of the fence structure by permitting the wooden panels positioned at the corner... | 04/21/1981 |
| 4231552 | Residential fence A fence comprising a plurality of rigid, intermediate, vertical support members of generally rectangular construction having longitudinal channels on opposite side walls for receiving vertical plastic or metal panels secured in the channels and terminal o... | 11/04/1980 |
| 4228867 | Noise barrier A noise barrier wall having a transition area in the region of at least one unbounded edge and which employs controlled diffraction of sound to enhance the sound reducing properties thereacross. The transition area of the noise barrier is provided with ei... | 10/21/1980 |
| 4225120 | Multi-section fence A multi-section fence wherein the sections are easily assembled by a single unskilled worker without the need of special tools. Each of the sections includes rails, and a plurality of frame members are attached to the rails and each frame member includes ... | 09/30/1980 |
| 4214734 | Fence system A privacy fence construction is disclosed in which permanency, rigidity, adjustability of components, and flexibility of design are incorporated in a construction combining steel elements. The elements include a fence rail which is adjustable in length, a... | 07/29/1980 |
| 4202532 | Jointed structure, combination of members therefor, and method of disassembly thereof In a fence structure comprising upper and lower horizontal rails between which fence panels are disposed each of the fence panels is connected to each of the rails by a jointed structure, the jointed structure comprising a resiliently deformable V-shaped ... | 05/13/1980 |
| 4200260 | Picket fence structure A picket fence structure comprising a plurality of coplanar contiguous vertical pickets which have at least one key slot cut into each edge, so that the mating edges of two adjacent pickets have their key slots in the same position. A key is placed in eac... | 04/29/1980 |
| 4193584 | Livestock fence An improved livestock fence comprises a plurality of concrete posts which receive therebetween a plurality of concrete panels. Each of the posts has an enlarged base to allow the post to be free standing. Each panel is held between two adjacent posts with... | 03/18/1980 |
| 4191361 | Lockbar for fence post mounting A lockbar for fastening a bight of fencing about a fence post or the like structure comprising an elongate sleeve having an interior cross-sectional configuration which is complementary to a portion of the fence post such as to enable telescopically slidi... | 03/04/1980 |
| 4188019 | Fencing construction There is provided a fencing panel having upper and lower transverse members each defining a channel opening toward the other. The fence includes a plurality of elongated upright members, the ends of each upright member being lodged in the channels, each u... | 02/12/1980 |
| 4186912 | Accident screen An accident screen kit comprises an elongated fabric screen of light-reflective material, preferably of alternating stripes. The material is in the form of an elongated strip which is supported at each end by a folding post of a light weight tubular plast... | 02/05/1980 |
| 4175639 | Noise barrier A noise barrier wall having a transition area in the region of at least one unbounded edge and which employs controlled diffraction of sound to enhance the sound reducing properties thereacross. The transition area of the noise barrier is provided with ei... | 11/27/1979 |
| 4174096 | Fence A fence is characterized by interchangeably mountable fence sections each having a front and a rear surface, and parallel pairs of vertical and horizontal edges. A mounting member having a mast-receiving opening therein is disposed adjacent each vertical ... | 11/13/1979 |
| 4155540 | Suspended rail An ornamental railing is provided which includes a plurality of glass or plastic panels suspended from a handrail. The panels provide vertical support for the handrail, acting as gussets between the handrail and its support means. The panels do not touch ... | 05/22/1979 |
| 4149700 | Fence system A privacy fence construction is disclosed in which permanency, rigidity, adjustability of components, and flexibility of design are incorporated in a construction combining steel elements. The elements include a fence rail which is adjustable in length, a... | 04/17/1979 |
| 4148277 | Animal pen construction An animal pen construction having sidewalls and a gate which are formed from a plurality of prefabricated modular rail sections. These rail sections have cooperating male and female portions on opposite ends to permit the sections to be slidably telescopi... | 04/10/1979 |
| 4145032 | Livestock gate A gate is described for use in constructing an enclosure for livestock. The gate includes a plurality of vertically extending and horizontally spaced bars supported between upper and lower, horizontally extending support members. Each bar has a center por... | 03/20/1979 |
| 4143857 | Safety/privacy fence A fence which provides an effective barrier to the attempts of children to climb and which is of durable and attractive appearance is formed of molded or stamped panels connected to support posts and a fence cap interlocking with the upper ends of the pan... | 03/13/1979 |
