Bizarre Patents
A kissing shield comprised of a thin, flexible membrane and a frame or holder.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7703397 | Rail road hopper car fittings and method of operation A hopper car discharge section may be wide at the top and narrow at the bottom. Outflow is controlled by closure members, at least one of which is movable. The closure members come together to a closed condition or position for retaining lading. When apart, in an op... | 04/27/2010 |
| 7367271 | Railway hopper car discharge gate A railroad hopper car discharge gate is assembled from unitary stacked frames that provide unimpeded flow of lading during discharge. A low-wear glide system minimizes friction between the gate panels and other components of the apparatus, and an improved sealing sy... | 05/06/2008 |
| 7124693 | Railway car outlet gate assembly An outlet gate assembly has upper and lower gate assemblies with independent drive mechanisms to open and close the gates. The drive mechanisms may be rack and pinion drives. The racks for the lower gate do not enter the gate cavity. The outlet gate assembly can be ... | 10/24/2006 |
| 6952996 | Remotely operated manhole cover for a tanker A remotely operated manhole cover for a tanker, trailer, or other storage unit is provided. The manhole cover includes a hollow neck which is welded in place in the shell of the tanker or trailer. The neck defines an opening which allows access to the interior of th... | 10/11/2005 |
| 6899038 | Railroad hopper car discharge gate assembly A discharge gate assembly adapted to be secured in material receiving relation relative to a standard opening toward a bottom of a railroad hopper car. The gate assembly of the present invention satisfies AAR requirements and specifications and includes a rigid fram... | 05/31/2005 |
| 6412421 | Gate assembly for a railroad hopper car A gate assembly for a railroad hopper car is disclosed. The gate assembly includes a frame defining a discharge opening, a slidable door mounted on the frame for movement between a closed position, wherein the door closes the discharge opening, and an ope... | 07/02/2002 |
| 6412422 | Gate assembly for a railroad hopper car A gate assembly for a railroad hopper car is disclosed. The gate assembly includes a frame defining a discharge opening, a slidable door mounted on the frame for movement between a closed position, wherein the door closes the discharge opening, and an ope... | 07/02/2002 |
| 6363863 | Gate assembly for a railroad hopper car A discharge gate assembly for a railroad hopper car is disclosed. The gate assembly includes a frame defining a discharge opening and a gate or first element slidably carried on the frame for controlling the discharge of material from the hopper car throu... | 04/02/2002 |
| 6286437 | Railway car outlet gate assembly An outlet gate assembly for a hopper type railway car includes a frame defining a discharge chute. Upper and lower gates are mounted in the frame. A compact rack and pinion opening and closing drive moves the upper gate between open and closed positions. ... | 09/11/2001 |
| 6263803 | Gate assembly for a railroad hopper car A gate assembly for a railroad hopper car is disclosed. The gate assembly includes a frame defining a discharge opening, a slidable door mounted on the frame for movement between a closed position, wherein the door closes the discharge opening, and an ope... | 07/24/2001 |
| 6205931 | Aerator pad for fluidizing particulate materials An aerator pad for a railroad hopper car has a fabric body member that overlies an aeration assembly slope sheet. The body member has a perimeter portion with indentations formed in the edges thereof. A gasket is molded to the perimeter of the body member... | 03/27/2001 |
| 6123030 | Gate assembly for a railroad hopper car A gate assembly for a hopper car having an enclosure for holding and transporting particulate matter and a plurality of openings along a bottom of the car through which particulate matter is discharged. The gate assembly is designed to allow for either pn... | 09/26/2000 |
| 5829358 | Dual durometer gasket for a railroad hopper car A gasket assembly for sealing between a gate assembly and the bottom opening of a railroad hopper car wherein the gate assembly has a peripheral flange, and a hopper car flange surrounds the bottom opening of the railroad hopper car. The gasket includes a... | 11/03/1998 |
| 5622290 | Water-tight flow controller for a ship A flow controller for the hopper of a self-unloading ship controls the flow of particulate material from the hopper. The controller is a throat having an opening and a movable gate to open and close the opening. The gate has a sloped central surface that ... | 04/22/1997 |
| 5613446 | Railway hopper car gate valve and operating assembly A gate valve assembly and a frame assembly for mounting the gate valve assembly on the discharge opening from a railway hopper car. The gate valve assembly includes an operating assembly for movement of a valve member within the gate valve assembly betwee... | 03/25/1997 |
| 5347933 | Railway ballast cleaning machine with integrated hopper car The disclosed shoulder ballast cleaning machine with integrated hopper car is particularly designed to provide for the temporary conveyance and storage of clean ballast. The shoulder ballast cleaning machine digs up the stone ballast of the railroad bed, ... | 09/20/1994 |
| 5277128 | Railcar gravity multi-ply outlet seal for sliding doors A gravity outlet valve (10) is for use on a railway car for discharge of lading from the car. The valve has sloping sidesheets connected together to form sidewalls (12a, 12b) and endwalls (14a, 14b) of the valve. An outlet (O) is defined by the lower end ... | 01/11/1994 |
| 5060579 | Sliding hopper outlet gate with plastic upper surface for smooth sliding and for sealing the outlet A hopper with a bottom discharge slot and valving comprising plates slidably supported beneath the slot and movable between closed and open positions, said plates having a plastic flexible covering to facilitate movement in shear against the load of the p... | 10/29/1991 |
| 5058510 | Gravity discharge hopper gate assembly A gate assembly for closing and opening a bottom discharge opening of a railway car hopper, the gate assembly comprising upper and lower plates with cooperating wedges thereon wherein the hopper is provided with an elastomeric sealing ring about the disch... | 10/22/1991 |
| 5005490 | Railway hopper car sliding gate sealing mechanism a seal mechanism for installation in the discharge opening of a railway hopper car. The design of the seal mechanism, the type of material used and the degree of securement of the discharge opening combine to provide a semi-flexible structure. Irregularit... | 04/09/1991 |
| 4830233 | Sluice type apparatus for discharging material batches A sluice type apparatus for discharging batches of material from a pressurized enclosure has a container with an upper inlet and a lower outlet each closable by a slide gate. Preferably, each slide gate has two slide gate members driven by respective pist... | 05/16/1989 |
| 4545446 | Hopper in combinatorial weighing apparatus A hopper for use in an automatic weighing apparatus, including a hopper body having a discharge port at a lower end of the hopper body, and a gate, swingably supported at an upper edge of the hopper body, for opening and closing the discharge port. The ga... | 10/08/1985 |
| 4528913 | Gravity outlet sliding gate seal The sealing assembly (10) of the present invention comprises a resilient sponge rubber tube (12) supported and retained by a metal bar (14) running through the tube and extending through slots (16) in the outlet side frame (18) terminating at each end in ... | 07/16/1985 |
| 4450773 | Sliding gate for a railroad hopper car The slide gate includes a closure door for selectively closing a discharge opening at the underside of a hopper car. The closure door is mounted for horizontally sliding movement in a support assembly which is mounted on the underside of the hopper car. T... | 05/29/1984 |
| 4429921 | Sliding bearing and seal A sliding gate for closing the discharge opening of a hopper having inclined side walls is mounted on elongated low-friction bodies or assemblies secured between the underside of upturned inclined side margins of the gate and the top sides of inclined sid... | 02/07/1984 |
| 4376542 | Hopper door gasket structure A gasket structure for application to a hopper car door edge comprises an elongated flexible gasket of compressible material having a relatively thick body with a continuous tangentially projecting rib and a plurality of narrow elongated spring clips exte... | 03/15/1983 |
| 4361096 | Railway hopper car door seal Seals to prevent seepage of a fine granular commodity between the hopper doors and the adjacent hopper sheets of a railroad hopper car of the type having opposed pairs of hopper doors swingable between a closed position and a downwardly depending open pos... | 11/30/1982 |
| 4360295 | Combination gravity/pneumatic hopper bottom A bottom assembly for a hopper vehicle is adapted to permit safe pneumatic unloading as well as gravity unloading of a hopper. The bottom assembly includes a membrane mounted to be moved over and away from a hopper bottom opening, and sealing devices for ... | 11/23/1982 |
| 4344365 | Railway hopper car gate anti-friction seal A sliding gate for closing the discharge opening of a hopper having inclined side walls is mounted on elongated low-friction bodies or assemblies secured between the underside of upturned inclined side margins of the gate and the top sides of inclined sid... | 08/17/1982 |
| 4342267 | Hopper discharge unit with sliding gate A hopper discharge unit for attachment to the bottom of a hopper has upright side and sloping end walls all terminating in horizontally inwardly directed flanges defining between them a rectangular outlet opening, with the side walls extended rearwardly b... | 08/03/1982 |
| 4325308 | Controlled-discharge door for particulate materials and liquids A controlled-discharge door assembly for particulate material or liquids includes a door member with a curved surface engaged by a large diameter roller mounted to a pivotable lever. The roller diameter is large in comparison to the length of the lever ar... | 04/20/1982 |
| 4324188 | Hopper discharge outlet and method A railway car hopper having downwardly and inwardly inclined side walls and end walls defining a rectangular hopper discharge opening is provided with a downwardly extending discharge chute. A gate for opening and closing the hopper discharge opening is s... | 04/13/1982 |
| 4280706 | Seal for fluidizing outlet A seal is provided between an outlet mounting flange and a hopper mounting flange. The seal extends in-board of the inner hopper wall and includes a projection extending upwardly which engages the hopper wall. The seal further includes a tapered portion w... | 07/28/1981 |
| 4214759 | Seal for railroad car hopper doors A sealing means for doors of a railroad hopper car and an apparatus and method for forming a sealing strip. The sealing means comprises a preformed strip of RTV silicone rubber fixed to the door at its edges and receiving a flange on the door frame. Prefe... | 07/29/1980 |
| 4112852 | Railway hopper car labyrinth gate seal A railway hopper car chute having a discharge opening defined by a sidewall frame with a sliding plate gate operating in the discharge opening. An undercarriage support frame is fixed to the sidewall frame to support the gate for sliding movements relativ... | 09/12/1978 |
| 4009907 | Bottom discharge hopper seal A resilient seal that may be removably mounted on the downwardly and inwardly tapering bottom portion of a hopper that defines a discharge opening, to cooperate with a gate in the form of a slide plate that normally closes the discharge opening to prevent... | 03/01/1977 |
| 3958514 | Automatic hopper gate locking mechanism A gravity outlet suitable for hoppers is provided comprising a gate movable back and forth between open and closed positions. A locking shaft is mounted on the gate having handles on at least one side of the outlet and having a locking member preferably h... | 05/25/1976 |
