Bizarre Patents
An extension member is attachable to a trailer hitch and extends away from the vehicle and is connected to a seating frame supporting a toilet seat.
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 |
| 7374059 | Covering systems and venting methods A covering system that includes a first membrane, a first flotation member coupled to the first membrane. The first flotation member includes a first float and a first float compartment membrane, and the first float compartment membrane is coupled to the first membr... | 05/20/2008 |
| 7313888 | Device for and method of preventing rattling of door window glass for vehicles A device for preventing rattling of a door window glass for vehicles. In an activated condition, i.e. upon the upward and downward movement of the window glass, smoother upward and downward movement of the window glass is enabled, thereby eliminating noise due to fr... | 01/01/2008 |
| 7240804 | Full contact floating roof A device and method of making a full contact floating roof for use in covering fluid bodies, such as storage tanks containing hydrocarbon fluids, allowing ease of construction, high integrity, and low maintenance cost. ... | 07/10/2007 |
| 7073530 | Storage tank de-inventorying A method for emptying a liquid storage tank that has a floating roof which becomes stationery a finite distance above the tank bottom, wherein, after the roof becomes stationery, liquid is continued to be withdrawn from inside the tank while vapor is removed from wi... | 07/11/2006 |
| 6925223 | Pressure actuated optical latching relay A pressure actuated optical relay containing a transparent mirror housing, located at the intersection of two optical paths. A liquid metal slug is moved within a channel passing through the transparent mirror housing by the action of pressure exerted by an actuatio... | 08/02/2005 |
| 6354488 | Secondary seal for floating roof storage tank A low profile secondary seal has a tube positioned above a primary seal that utilizes a shoe plate. The tube is connected to the floating roof. A tip seal adjacent the shell of the tank is connected to the shoe plate by a spacer. In use, the tube bears on... | 03/12/2002 |
| 6325384 | Tank piston with improved seal and wiper A tank piston is shown with an improved seal and wiper. The piston is used in conjunction with tanks used for transporting semi-solid and viscous materials such as grease, oil, ink, and the like. The improved seal consists of an annular rubber member with... | 12/04/2001 |
| 6247607 | Low profile secondary seal A low profile secondary seal for sealing the space between the inner wall of a tank and a roof floating on a liquid product within the tank is of relatively simple, lightweight construction and of low profile so as to maximize the possible height of the f... | 06/19/2001 |
| 5532431 | Sealing construction for electrical connection box and method for forming packing used therefor A sealing construction for an electrical connection box, in which a waterproof cover is mounted on a main body, including a packing which is fitted into a packing groove of the waterproof cover so as to be brought into pressing contact with a contact port... | 07/02/1996 |
| 5529200 | Floating roof metallic shoe seal spring hanger system The present invention relates to a ring seal for between a floating roof and a side wall in a liquid and vapor storage tank. The ring seal includes a number of overlapping shoe plates hung from the floating roof by pantagraph hanger assemblies. The pantag... | 06/25/1996 |
| 5372270 | Shoe seal for floating roof A shoe seal for effecting a vapor barrier between a lightweight internal floating roof and a tank wall of a tank includes a plurality of shoe sections; a plurality of hanger brackets connected to perimeter sections of the lightweight internal floating roo... | 12/13/1994 |
| 4842160 | Floating covering for liquid storage tank A floating covering on the liquid content of a storage tank. The circumferential edge of the covering has an elastic annular body provided with a gas-tight annular chamber and an annular body of foam material. Pressure control means communicates with the ... | 06/27/1989 |
| 4632281 | Magnadrum pump assembly A positive displacement pump type fluid dispensing system for viscous fluids in upright-open ended cylindrical containers. The system comprises a base adapted to receive and substantially center the container, a ram plate which is carried by a vertical el... | 12/30/1986 |
| 4532800 | Level indicator for liquid container with a follower A bulk material container comprises a shell made from suitable material, such as aluminum or stainless steel. Disposed within the shell is a follower. The vertical position of the follower varies with the level of flowable bulk material stored in the shel... | 08/06/1985 |
| 4493430 | Floating roof seal using a coil spring A resilient seal located in and spanning the vapor space between a tank wall and a floating roof wall with the seal including a vapor resistant flexible strip of material having parallel longitudinal edges attached to the roof defining a horizontal pouch ... | 01/15/1985 |
| 4437577 | Double secondary seal for floating roof tanks A double secondary seal for a floating roof type of liquid storage tank is disclosed. The secondary seal includes generally a weather shield of edge overlapping steel panels which extends upwardly and outwardly from the peripheral edge of the floating roo... | 03/20/1984 |
| 4353478 | Vapor seal for floating roof tank In a storage tank for liquids, such as petroleum liquids and the like of the type having a generally upstanding cylindrical tank wall and disposed within the wall a generally circular roof therefor adapted to float upon the contents of the tank in vertica... | 10/12/1982 |
| 4339052 | Secondary seal for floating roof storage tanks A secondary seal for a floating roof product storage tank has a cross-sectional shape substantially that of a right triangle. The hypotenuse of that right triangle contacts the primary seal and one leg of the seal extends outwardly of the roof rim. The se... | 07/13/1982 |
| 4273250 | Sealing system for liquid storage tanks A sealing system for a liquid storage tank having a roof freely floating on the contents stored within the storage tank. The sealing system is in wiping contact with the tank shell and may utilize a primary and a secondary seal. As a primary seal, the sys... | 06/16/1981 |
| 4213280 | Modular unit for the construction of floating decks of liquid storage tanks The disclosure herein describes a modular unit for use in the construction of floating decks used in horizontal or vertical liquid storage tanks; the unit consists of a core of cellular foam plastic and of an envelope sealingly encasing the core, the enve... | 07/22/1980 |
| 4191303 | Liquid storage tank sealing system A sealing system for a liquid storage tank having a roof freely floating on the liquid contained within the storage tank wherein a plurality of shield sections are structurally interlocked to eliminate the need for a vapor-impermeable fabric annulus overl... | 03/04/1980 |
| 4174785 | Multiple peripheral seal for storage tank floating deck Adjustable flexible sealing members for the peripheral edge of a floating deck are disclosed. At least two sealing members are attached to the peripheral edge of the floating deck in such a manner that both vertical and horizontal movement of the members ... | 11/20/1979 |
| 4147274 | Floating roof tank seal A rim seal is provided for a floating roof tank to fill the space between the floating roof and circumferential wall of the tank. The seal is a compressible toroid of approximately the diameter of the tank and has a cross-sectional diameter greater than t... | 04/03/1979 |
| 4130217 | Seal arrangement for floating roof storage tanks A seal arrangement for a floating roof in a storage tank, wherein the roof is spaced at its outer periphery from the inner surface of the tank, thus defining a rim space, includes support members secured at one edge to the roof and extending angularly out... | 12/19/1978 |
| 4126243 | Tank floating roof seal The improvement in a liquid storage tank having a floating roof, a plurality of shoes adapted to slidably contact the inner side wall of the tank, and means supported by the roof for pressing the shoes against the inner side wall, comprising an elastomeri... | 11/21/1978 |
| 4099643 | Seal for floating roof tank Auxilliary seal for a floating roof tank is provided by a plurality of superposed flexible sheet members arranged above a primary seal about the periphery of the floating roof. The flexible sheet members have outer edges which distort as the assembly pass... | 07/11/1978 |
| 4036395 | Secondary sealing device for storage vessel having a floating roof The present invention is a secondary sealing device for use in a storage vessel having a floating roof and a primary sealing structure that includes a set of steel shoes, each of which is disposed about the perimeter of the floating roof and is mechanical... | 07/19/1977 |
| 4014454 | Floating roofs for liquid storage tanks The invention comprises a liquid storage tank having a floating roof of the type in which the roof rises and falls with changes in the level of the liquid and a seal provided between the edge of the roof and the inner wall of the tank to prevent contamina... | 03/29/1977 |
| 4004708 | Fire-responsive tank top Floating tank top pivotally carrying upwardly projecting weather shield plates around its periphery for biasing outwardly against inside surface of tank wall, has bias mechanism arranged to tilt the plates inwardly in response to fire to expose roof seal ... | 01/25/1977 |
| 3946557 | Rocket motor construction Stresses induced by differential expansion and contraction of the solid propellant grain and the rocket motor case to which it is conventionally bonded are obviated by bonding a special sheath to the propellant grain and attaching it to the rocket motor c... | 03/30/1976 |
