Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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 |
| 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 |
| 7225942 | Oil storage tank equipped with a floating bed type inner floating roof The present invention relates to an oil storage tank equipped with a floating bed type inner floating roof. The oil storage tank structure has a tank body and an inner floating roof which lies on the liquid surface inside the tank. The inner floating roof includes f... | 06/05/2007 |
| 7044322 | Spring-loaded secondary seal for floating-roof storage tank A low-profile secondary seal for floating-roof storage tanks has a tip seal that includes a series of segmental adapter plates connected to the shoe plates. A tip seal element is mounted on the adapter plates. A fabric extends between the tip seal and the floating r... | 05/16/2006 |
| 6929142 | Removable hatch cover for an internal floating roof manway A hatch cover for deployment over a hatchway formed in a floating roof liquid storage tank permits rapid loading and unloading of inspection or maintenance equipment and minimizes vapor emissions from the tank. The portable hatch cover has two base plates movably co... | 08/16/2005 |
| 6922956 | Floating cover A floating cover or roof having a plurality of floating panels or panels is provided. The floating cover disposed in a storage tank includes a frame having a plurality of openings, the floating panels mounted into the respective openings, an inspection port formed o... | 08/02/2005 |
| 6659688 | Organic slurry basin storage cover and method of fabricating and deploying cover A cover assembly for an organic waste lagoon basin and a method of making and deploying such a cover assembly. A cover includes connected cover panels or sections. In one form of the invention the panels are comprised of a single layer of geotextile fabri... | 12/09/2003 |
| 6193092 | Highly resilient, non-structural floating roof for tanks for storing liquids The present invention relates to a floating roof (1) with non-structural characteristics, which basically comprises a peripheral ring (7) formed by the joining of a plurality of plates and which has a plurality of floats (2), and a central platform (8) fo... | 02/27/2001 |
| 6082055 | Ice rink cover An ice rink covering system utilizes a plurality of support mechanisms for sets of non-flexible insulated panels which are interconnected by a hinge mechanism between each pair of adjacent panels. The support mechanisms are connected to the panels by lift... | 07/04/2000 |
| 5704509 | Full contact floating roof A full contact floating roof for a storage vessel includes a plurality of panels wherein each panel includes a core disposed between upper and lower skins. A plurality of closures are provided wherein each closure is secured to perimeter edges of a panel ... | 01/06/1998 |
| 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 |
| 5453179 | Sludge clarifier roof with central column support A clarifier is disclosed with a cover or roof configured and disposed to minimize headspace between a top level of liquid in a clarifier vessel and a bottom of the roof. In one aspect the roof or cover includes one or more removable panels which permit ac... | 09/26/1995 |
| 5343890 | Sump protector An overflow protector for a sump having a wall defining an open top reservoir includes a stop member forming an abutment along the wall of the reservoir, a floating sleeve member movable between a non-operable position contained within the reservoir and a... | 09/06/1994 |
| 5212090 | Cover structure for a fermentation container There is disclosed a cover structure for use with fermentation and the like containers. The cover structure includes a lower cover having a plurality of layers of strips of material covering the container, with the strip layers angularly oriented to each ... | 05/18/1993 |
| 5123559 | Built-up inner floating ceiling for use in an oil storage tank Discloses a kind of built-up inner floating ceiling for use in an oil storage tank, with a view to removing electrostatic effects. The ceiling comprised a skeleton and plastic buoys concentrically arranged thereon, under which there is provided a metallic... | 06/23/1992 |
| 5074427 | Apparatus for covering a basin for liquids An apparatus for covering a basin for liquids, for instance basins used for purification of waste water. The apparatus according to the invention comprises a covering element, with a regular circumferential shape, so that they can be located adjacent, whi... | 12/24/1991 |
| 5074461 | Container A unit (3) for fitting on the open top of a container (1) made of cardboard, corrugated board or similar lightweight semi-rigid sheet material, said unit including securing means (10) arranged to be located and secured in an aperture (15) in a side wall o... | 12/24/1991 |
| 4629633 | Composition and method for protection of liquid surface from heat- and mass-transfer in liquid gas system A composition for protection of the liquid surface from heat- and mass-trfer, for example from evaporation, contains a polymer limitedly swelling in the protected liquid or a mixture of said polymer with a neutral filler having a density lower than the d... | 12/16/1986 |
| 4555283 | Method of forming a storage tank for bitumen in the liquid state A storage tank for liquid bitumen including a steel shell having heat insulation adjacent to its interior surface. The insulation is glass foam. Preferably, the insulation is in the form of glass foam panels which are initially arranged with gaps between ... | 11/26/1985 |
| 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 |
| 4427127 | Floating deck support apparatus A cover adapted to float on the surface of liquid in a storage tank employs a deck and first and second generally horizontal elongated pontoons disposed essentially along a common axis of symmetry. The pontoons are adapted to float support the deck on the... | 01/24/1984 |
| 4258858 | Apparatus for sealing floating roof tanks An apparatus for sealing floating roof tanks including a sealing element disposed around the circumference of the floating roof between the floating roof and the tank wall, and a plurality of baffles adapted to substantially inhibit or prevent the circumf... | 03/31/1981 |
| 4244487 | Floating cover having pivotally connected flotation pontoons A floating cover for a tank is characterized by a pivotal interconnection between confronting ends of longitudinally adjacent flotation pontoons such that one pontoon is pivotally movable with respect to the longitudinal axis of the other pontoon when the... | 01/13/1981 |
| 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 |
| 4202460 | Sectional floating cover A sectional floating cover used to control vapor losses from storage tanks and other similar vessels containing volatile organic compounds, is disclosed. The floating cover comprises a plurality of buoyant steel chamber units secured together to form a co... | 05/13/1980 |
| 4199074 | Enclosed seal for open top volatile liquid storage tanks An open top tank for storing volatile liquids has a circular floating roof buoyantly supported on the surface of the stored liquid within a confining cylindrical shell of the tank. Adjustable sealing means extends between the roof and the top of the shell... | 04/22/1980 |
| 4197595 | Cover for swimming pools The disclosure is of a buoyant, air-filled, plastic cover for swimming pools, large ponds, and the like, and to facilities by which these may be constrained to float on the water (or other liquid) without proneness to disarrangement, especially in the reg... | 04/15/1980 |
| 4189058 | Floating thermally insulating tank covers Open top tanks or ponds are provided with a thermally insulating floating cover which comprises a plurality of individual generally flat polygonal plates floating in edge-to-edge relationship. Each of the plates has at least one peripherally disposed down... | 02/19/1980 |
| 4139117 | Floating cover assembly A floating cover assembly encompassing in a first condition a method and apparatus for tensioning a floating cover for a liquid storage reservoir wherein the surface level of the stored liquid varies and in a second condition, a method and apparatus for m... | 02/13/1979 |
| 4071164 | Floating roof of a tank for storing liquids A floating roof of a tank for storing liquids consisting of a resilient disc-shaped diaphragm attached, leakproof fashion, all the way around its circumference to an annular seal and further attached to a floating chamber at the center which is fitted to ... | 01/31/1978 |
| 4035149 | Vapor barriers for liquid conservation The evaporation of volatile non-aqueous liquids is inhibited by a floating layer of expanded cereal grains optionally treated with fluorocarbons or perlite treated with fluorocarbons.... | 07/12/1977 |
| 4009897 | Garbage can and lid tie down apparatus An integrally formed hold down device for securing the lid of a garbage can which also maintains the garbage can itself in upright position, comprising a resilient one-piece tension strap having three strap extension portions terminating in three looped p... | 03/01/1977 |
| 3998204 | Floatable ball A floatable ball, a plurality of which floatable balls are for providing a gapless floating ball blanket, wherein the floatable ball includes a modified spheroid constructed of a floatable material and which modified spheroid is provided with a plurality ... | 12/21/1976 |
| 3993214 | Open liquid surface cover Means for substantially reducing evaporation and heat loss from an open liquid surface comprising a plurality of pentagonal dodecahedrons which substantially cover the surface of the liquid. The dodecahedrons may be hollow or solid but are preferably made... | 11/23/1976 |
| 3938338 | Covering or blanketing liquid surfaces and float members for effecting same The invention provides a float member for use in conjunction with similar float members for substantially completely blanketing or covering the surface of a liquid to reduce evaporation, and/or to suppress waves, the emission of noxious or toxic fumes and... | 02/17/1976 |
