Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7114751 | Composite liner for oilfield tubular goods A composite lined tube is disclosed having end couplings. The tube includes a resin impregnated fiber preform pressed progressively along an inner wall of the tube. The tube may further include an inflatable bladder inserted into the tube. The bladder is adapted to ... | 10/03/2006 |
| 7108821 | Method for making double-wall shells by centrifuging A method of fabricating a double-walled shell of fiber reinforced plastic material is by centrifuging. The outer wall of the shell is made by projecting glass fibers and resin in a liquid phase against an inside face of a cylindrical mold rotating about its horizont... | 09/19/2006 |
| 6902761 | Selective coating of the interior of glass tubes with a metallic mirror surface The invention relates to a method for the interior metal-coating of glass tubes, with the metal-coated surface being a cylindrical shell. In accordance with the invention such a method comprises the following process steps: ... | 06/07/2005 |
| 6627136 | Method for making a liquid storage tank A method for making a liquid storage tank for holding chemicals and heating oil and water and liquids compatible with high-density polyethylene. The tank is lap welded with a perforation in the lap weld and contains a molded polyethylene lining inside the... | 09/30/2003 |
| 6248280 | Method of manufacturing a respirator cartridge seal A process and apparatus for forming a seal between a filter cartridge wall and a pleated filter disposed within the cartridge having a support for rotating the cartridge. A nozzle is connected to a source of sealant for injecting sealant into an area betw... | 06/19/2001 |
| 6114009 | Asymmetric retroreflective cube corner sheeting mold and sheeting formed therefrom Laminae suitable for use in a mold suitable for use in forming retroreflective sheeting and methods of making such laminae are disclosed. A representative lamina includes a single row of geometric structures disposed on the working surface. Each geometric... | 09/05/2000 |
| 5753173 | Method of manufacturing a blood oxygenation system A novel integral cardiotomy/venous blood reservoir, blood oxygenator and heat exchanging device, method of making a blood oxygenating and heat exchanging device and an extracorporeal circulatory support circuit. The reservoir includes a novel blood defoam... | 05/19/1998 |
| 5585141 | Method for lining pipe with calcium alumina cement Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and void spot free... | 12/17/1996 |
| 5462706 | Method for forming a flange on an end of a synthetic liner A method is shown for forming a flange on an end of a plastic pipe liner of the type used to line a tubular member. A preformed synthetic disc is installed on the end of the synthetic liner which extends from the tubular member. The exposed end of synthet... | 10/31/1995 |
| 5447798 | Concrete article and method of producing same A concrete article having a mixture layer comprising concrete and a polysulfide-modified epoxy resin as an intermediate layer between a concrete body and a cured layer of a polysulfide-modified epoxy resin, which concrete article is excellent in corrosion... | 09/05/1995 |
| 5439724 | Lid with a pressure release hole and a removable seal, for vacuum sealing of glasses and other glass containers used to pack foodstuff A lid for sealing a container. The lid adheres to the container by a vacuum formed within the container. The lid is formed of a substantially circular panel having a flanged perimeter and a concave depression on an upper side of the circular panel. A pres... | 08/08/1995 |
| 5409891 | Method for producing a rotationally symmetrical molded part of a high-temperature superconductor A rotationally symmetrical molded part of a high-temperature superconductor achieves a critical current density of jc ࣙ800 A/cm2 at a temperature of 77K, by using a powder mixture (8) having the stoichiometric composition of Bi | 04/25/1995 |
| 5372162 | Repair device for the in situ repair of pipes, and a method of repairing pipes A repair device for the in situ repair of a pipe comprises an assembly of at least four short cylindrical, inflatable members 1, 2, 3, 4, which are interconnected by articulated rods 5 which are each articulated by means of a cardan joint 6. When in the p... | 12/13/1994 |
| 5176869 | Method of manufacturing an inner lined pipe A method of manufacturing an inner lined pipe in which a lining layer is formed to the inner circumferential surface of a pipe using a centrifugal molding method, wherein a resin mortar material and a hardening agent for lining are mixed at the top end of... | 01/05/1993 |
| 5126184 | Molded part and mold for manufacturing the same A molded part formed by outsert-molding a resin into a through hole of a pipe part includes a pipe part and a resin part. The pipe part includes a hole having a tapered surface whose size is gradually reduced inward from an end portion of a through hole f... | 06/30/1992 |
| 5126086 | Method for producing a container having an inside bag A method for producing a container having an inside bag for the accommodation of a filling material w which is applied by a propellant between the container and the inside bag from a valve or the like, wherein after production of the container, for exampl... | 06/30/1992 |
| 5098628 | Centrifugal molding method for composite pipe having a resin concrete layer A centrifugal molding method which can smooth the inner surface of the resin concrete layer of a resin concrete pipe or of a composite pipe having a resin concrete layer even without using any special sand conditioning mechanism and which is high in produ... | 03/24/1992 |
| 5096627 | Method of molding optical recording drums A method for fabricating in a mold a rotatable recording drum. Initially, the mold is rotated and a predetermined quantity of a flowable substance is poured into the mold cavity and is centrifugally flung against the mold wall to form a mold layer with a ... | 03/17/1992 |
| 5082614 | Method for producing a composite pipe in a rotating drum The components forming the layers of a composite pipe are successively introduced into a rotary drum (1). Initially, a plastic reinforcing lyaer (8), including a fiber reinforcement, is introduced into the drum, the ends of the drum (1) being bounded by r... | 01/21/1992 |
| 5043103 | Method and apparatus for centrifugally casting hazardous waste A casting containing toxic waste is made by centrifugally casting toxic waste in a pre-formed cage having heat conducting means therein. The casting is formed with suitable shielding materials selected as a function of the waste being cast. The finished c... | 08/27/1991 |
| 5037600 | Method of applying a polyolefin coating to pipe Iron pipe and other hollow articles are lined with a cementitious mortar containing a quantity of polymer particles and the pipe is rotated about its axis so as to stratify the mortar and develop a polymer rich inner surface that is subsequently cured, dr... | 08/06/1991 |
| 4987013 | Process for lining pipe A computer controlled concrete injector pump and process for lining pipe comprises a pump chamber having an outlet connected to a spray lance through a first check valve and having first and second inlets, one inlet being connected through a second check ... | 01/22/1991 |
| 4957683 | Process for producing a pipe section and compound pipe produced according to this process The wall of the pipe section comprises a plurality of superimposed layers, which are formed from plastic and inorganic materials. The layer of inorganic materials forms the central layer, whose wall portions are in each case connected by a connecting laye... | 09/18/1990 |
| 4956038 | Method for lining pipe lines A method for lining pipe lines for transporting city water, city gas, petroleum and other various kinds of fluids. In a method used as a conventional art, i.e. a method for lining pipe lines which comprises pushing forward a flexible tubular lining material (2... | 09/11/1990 |
| 4950356 | Method of and apparatus for lining pipes A method of lining a pipe comprises the steps of laying hose means along the bottom of a pipe to be lined, the hose means having been filled with a predetermined quantity of settable lining composition, anchoring the hose means at each end along the botto... | 08/21/1990 |
| 4897221 | Process and apparatus for classifying, segregating and isolating radioactive wastes Low-level radioactive wastes and the like are identified by composition and segregated based on specific contaminants identified. The separated wastes are subsequently encapsulated in a centrifugal process prior to disposal. The wastes advantageously are ... | 01/30/1990 |
| 4865673 | Method of applying a protective coating to the inner surface of a pipeline and device for carrying out the method A method of applying a protective coating to the inner surface of a pipeline includes the steps of adhering a porous flexible hose to the pipeline inner surface, an end of the hose of which is turned inside out and attached to the pipeline. The hose is mo... | 09/12/1989 |
| 4786345 | Method of lining a passageway A method of lining a passageway comprising pulling a first flexible lining pipe sized to the passageway to be lined into the passageway, the first lining tube comprising at least one resin absorbent layer impregnated with curable synthetic resin, and by t... | 11/22/1988 |
| 4780163 | Method for lining pipeline A method of lining pipes by providing a predetermined distance of pipeline with a first and second end; forming at least one closure point in the pipeline by cutting at least one section of the pipeline forming at least a first and second section of the p... | 10/25/1988 |
| 4714578 | Molding of integral socket connection in centrifugally cast fiberglass reinforced pipe A method and apparatus for manufacturing a centrifugally cast pipe for use in a chemical and corrosive atmosphere is provided. The centrifugally cast pipe has an integrally cast socket or coupling at one end of the pipe. The socket is cast onto the pipe. ... | 12/22/1987 |
| 4680066 | Lining of pipelines or passageways The invention provides for the light curing of a synthetic resin which is light curable, and is arranged as a layer upon the surface of a pipeline or passageway. The curing lamps are enabled to be pulled into the pipeline or passageway by virtue of insert... | 07/14/1987 |
| 4448742 | Low cost thermal protection system processing A method and apparatus for spin casting a castable material into a cylindrical body. The method comprises the steps of rotating an elongated cylindrical body about its longitudinal axis, applying an extrudable uncured material as a continuous stream in he... | 05/15/1984 |
| 4351104 | Method for manufacturing magnetic heads In the method for manufacturing annular portions of magnetic heads, a gap between the confronting end surfaces of the magnetic heads is filled with glass. In one of the conventional processes, the glass is sucked into the gap by a capillary action of the ... | 09/28/1982 |
| 4339291 | Manufacture of bitumen pipes A reinforced bitumen pipe has an inner, strength-providing, reinforced thermosetting resin layer which is coated on its inner and outer sides with a bitumen layer. The bitumen layer on the inner side, and preferably also the bitumen layer on the outer sid... | 07/13/1982 |
| 4311632 | Process for molding a concrete pipe A process of molding a concrete pipe is proposed. The attainment of a predetermined degree of compactedness of fresh concrete is electrically detected through a pressing roller by which the fresh concrete is compacted in a molding flask. When a predetermi... | 01/19/1982 |
| 4298634 | Method for coating cylindrical surfaces A method for coating the interior of a cylindrical surface comprising depositing on the interior or a rotating cylindrical surface a dry hydraulic cement composition and applying to the dry cement coating which is held stationary on the interior cylindric... | 11/03/1981 |
| 4252763 | Method and apparatus for cement lining of pipes A pipe lining apparatus includes a distributor head which throws cement mortar centrifugally against the interior of a pipe, a trowel which smooths the cement mortar and a liquid coating spray applicator which applies a curing control substance to the tro... | 02/24/1981 |
| 4217948 | Method for production of two-layer pipe casting A method for the production of two-layer pipe casting is carried out in the following manner. First, a reaction chamber is filled with an initial mixture. Then, the reaction chamber with the initial mixture is set in rotation about its longitudinal axis w... | 08/19/1980 |
| 4170814 | Method of manufacturing a centrifuge rotor A centrifuge rotor which is laminated and consists of at least two layers of different materials, a mechanically stronger layer being outermost and a chemically more resistant layer being positioned as an inner filler material. A method of forming a centr... | 10/16/1979 |
| 4150176 | Method and device for production of refractory lining of a tubular vessel A process for the production of a refractory lining within a tubular vessel which comprises disposing said tubular vessel so that the longitudinal axis running therethrough is horizontal, slinging a moist refractory mass onto a longitudinal or annular sec... | 04/17/1979 |
