Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 6932391 | Quick-release fitting assembly A quick-release fitting assembly has a male fitting and a female fitting. The male and female fittings are secured together by a retaining ring that is at least partially received in aligned first and second retaining grooves that are provided in the male fitting an... | 08/23/2005 |
| 6793095 | Blow-molded pressure tank with spin-welded connector A pressurized vessel, such as a tank liner, is formed of a thermoplastic injection-molded connector or insert and a thermoplastic blow-molded vessel body. A noncylindrical skirt of the connector having a substantial surface area is spin-welded to a mating interface ... | 09/21/2004 |
| 6660214 | Pressure vessel manufacture method A method of molding a hollow, reinforced molded plastic article. A preform is provided in the shape of the article to be molded. The preform comprises randomly commingled, short lengths of thermoplastic and reinforcing fibers loosely bonded together. A co... | 12/09/2003 |
| 6298553 | Composite pressure vessel with heat exchanger A seamless plastic pressure vessel having a heat exchanger encased therein is disclosed. The pressure vessel is a unitary seamless wall and the wall surrounds a heat exchanger unit comprising a length of hollow tubing having ends retained in a mounting fi... | 10/09/2001 |
| 5900107 | Fitting installation process and apparatus for a molded plastic vessel A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on... | 05/04/1999 |
| 5878773 | Auxiliary flow path valve A Flow control valve for a pump suction line permitting flow from an alternate source in the event of partial or complete blockage of a main source. The valve includes a valve housing having a main inlet port at one end, on auxiliary inlet port at its oth... | 03/09/1999 |
| 5866001 | Filament wound housing for a reverse osmosis filter cartridge Disclosed is a housing for a reverse osmosis filter. The housing is preferably cylindrical and features a unique sealing assembly at each of its ends. The end assemblies enable the interior of the housing to be readily accessed and securely sealed. Each e... | 02/02/1999 |
| 5819978 | Two piece composite inlet A plastic pressure vessel having an access fitting is disclosed. The pressure vessel has a liner defining a container with an access opening. The fitting comprises a body portion defined by a hollow cylindrical neck portion having an upper annular rim and... | 10/13/1998 |
| 5806705 | Sealing technique for hydropneumatic pressure vessel A hydropneumatic pressure vessel comprising a tank wall having wall portions defining a closed cavity. A flexible elastomeric diaphragm separates the cavity into first and second fluid pressure chambers. An edge of the diaphragm is clamped between annular... | 09/15/1998 |
| 5759414 | Swimming pool main drain assembly A swimming pool main drain assembly comprises a cup-shaped fitting recessed in a pool bottom and having an open mouth substantially coplaner with the pool bottom. A port is provided in the fitting which communicates with the suction inlet of a circulation... | 06/02/1998 |
| 5759387 | Grey water filter tank recovery system and filter backwashing system A grey water recovery system comprises a filter tank having a filter medium therein. Grey water is delivered to the filter tank by a delivery conduit and filtered grey water is collected in a sump which surrounds the filter tank. A pump removes the filtra... | 06/02/1998 |
| 5574334 | Submerged lamp with self grounding sleeve A conductive sleeve is located around each of the filament supports of an incandescent lamp enclosed in a glass bulb. The sleeve is spaced from the support by an insulating spacer. The sleeve is connected to a ground so that if the bulb breaks liquid flow... | 11/12/1996 |
| 5556497 | Fitting installation process A molded plastic vessel is provided with a fitting or other attachment after molding and before winding of the vessel. The fitting is provided with a plastic insert. The insert and a wall of the vessel are heated and welded together to hold the fitting on... | 09/17/1996 |
| 5545952 | Self grounding lamp for special use in an underwater environment An incandescent bulb for use in a submerged swimming pool light fixture is disclosed, which includes a filament, at least one spring-biased filament support, and a grounding device. The filament support includes an exposed current-conducting portion and i... | 08/13/1996 |
| 5526994 | Filament-wound isotensoid pressure vessels having geodesic domes A filament-wound pressure vessel having a pressure vessel liner and a continuous filament polar wound over the surface of the liner in an isotensoid pattern. The liner has a geodesic dome surface extending between a diameter of the liner and a polar openi... | 06/18/1996 |
| 5484079 | Hydropneumatic filament-wound pressure vessel A hydropneumatic filament-wound pressure vessel is disclosed. The vessel has first and second cup-shaped tank liners having circular open mouths which are provided with a seal and diaphragm assembly. The seal assembly includes a pocket formed by an inner ... | 01/16/1996 |
| 5388720 | Flanged diffuser and air cell retainer for pressure vessel A diffuser is attached to a flexible inner cell inside an outer vessel. The outer vessel contains a first fluid and the inner cell contains a second fluid. The diffuser has a flange which is sandwiched between a flanged port and a flanged neck of the oute... | 02/14/1995 |
| 5368073 | Hydropneumatic pressure vessel having an improved diaphragm assembly A hydropneumatic filament-wound pressure vessel is disclosed. The vessel includes a split tank closure and diaphragm assembly comprising a pari of cup-shaped plastic tank liners having cylindrical sidewall portions terminating in circular open mouth porti... | 11/29/1994 |
| 5356589 | Method and apparatus for forming rotationally cast tank liner having an end fitting Method and apparatus for rotationally casting a plastic tank liner having a molded-in access fitting and for ensuring a uniform thickness of plastic in the wall of the liner and on the fitting. A hollow mold having a mold cavity surface conforming to the ... | 10/18/1994 |
| 5320495 | Pressure switch adaptor for well system A pressure switch adaptor designed to replace existing pressure switch adapters or connections and pressurizing air valves conventionally associated with water storage and distribution tanks. The adaptor is designed to be used as original equipment on new... | 06/14/1994 |
| 5308386 | Air relief valve for a pressure vessel The present invention is directed towards an air relief valve for a pressure vessel which automatically releases air from the system during filling with liquid, and which automatically seals when the liquid in the system reaches a predetermined level to p... | 05/03/1994 |
| 5268096 | Pool drain assembly A pool drain assembly for a swimming pool having a vinyl liner is disclosed. The assembly includes a drainage receptacle which has an upper edge portion substantially at a level defining the bottom of the swimming pool. The receptacle has a conically shap... | 12/07/1993 |
| 5096083 | Polyethylene shipping drum A polyethylene shipping drum especially suited for shipping hazardous materials is disclosed. The drum comprises a molded container and closure which are threadably connected to each other to form a seal therebetween. A thread lock is provided for the thr... | 03/17/1992 |
| 5045187 | Regeneration system for water conditioners such as water softeners A regenerating control system for liquid conditioners includes ball valves positioned and sized so that they do not cause any flow restriction during the normal operation of the conditioner. The valves are operated by low voltage D.C. motors which require... | 09/03/1991 |
| 4994132 | Method and apparatus for attaching an insert in a hollow body A method and apparatus for attaching an insert in an opening in a molded thermoplastic body. The insert includes a thermoplastic mounting portion which is fused with the thermoplastic material of the body. The insert is maintained in a spaed position from... | 02/19/1991 |
| 4778369 | Apparatus for changing vertical-axis extrusion dies A die changing mechanism for use with a vertical-axis extrusion apparatus that includes a die housing and an extrusion die section, such as an inner section that is secured to the housing by a threaded connection. The apparatus includes a transportable su... | 10/18/1988 |
| 4705468 | Apparatus for rotationally casting a plastic tank liner having an access fitting There is disclosed apparatus for rotationally casting a plastic liner for a pressure vessel having a metal access fitting molded therein. The apparatus includes a rotational casting arm having a mold supporting surface and adapted to be rotated about orth... | 11/10/1987 |
