Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7351467 | Beverage safety lid In accordance with the invention, thin bodies of plastic, such as sheets or strands, with substantially different thermal coefficients of expansion, are laminated together to make plastic bodies that move in response to temperature change. The thermally movable plas... | 04/01/2008 |
| 7350541 | Leakproof one-way valve for use with vacuum attachment A one-way valve allows air to be drawn from a collapsible, flexible, airtight bag using a vacuum source. When the vacuum source is removed, the one-way valve prevents air from re-entering the bag. The valve assembly comprises a base, a valve element supported by the... | 04/01/2008 |
| 7261382 | Reservoir tank for vehicle brake system A reservoir tank has an inlet/outlet port communicating with a master cylinder, and a hydraulic fluid supply port provided directly opposite the inlet/outlet port. A tubular portion is provided on the inner surface of the tank. The tubular portion has an internal pa... | 08/28/2007 |
| 7240796 | Packaging release valve for refrigerated food items A valve assembly is provided for venting pressurized gases generated from within an enclosed package during a heating of the package. The valve assembly has a membrane element, a tubular body and a retaining member. The tubular body has an open end, a closed end and... | 07/10/2007 |
| 7163113 | Vent disc with center knob A member that positions a vent disc in an end of a container is provided. The member has at least one projection extending from the vent disc virtually solely for positioning the vent disc in its secured position in the end of a container. The at least one projectio... | 01/16/2007 |
| 6776301 | Cap with one-way de-gas feature A cap with a way-one valve solves two distinct problems in the field of packaging materials that emit gasses, providing both a means to prevent a package from deforming under pressure built up inside the package, and a means to reseal the package. The cap comprises ... | 08/17/2004 |
| 6702136 | Brake fluid reservoir cap assembly design The present invention is an improved reservoir cap for a braking fluid reservoir including a cylindrical skirt for surrounding an opening of the reservoir body, a disc portion having a hard stop formed unitarily with the cylindrical skirt for closing the ... | 03/09/2004 |
| 5409144 | Dispensing valve for packaging A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein... | 04/25/1995 |
| 5377877 | Dispensing valve for packaging A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein... | 01/03/1995 |
| 5339995 | Dispensing valve for packaging A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein... | 08/23/1994 |
| 5269431 | Reservoir tank A reservoir tank includes a tank body storing an amount of operating fluid and having an inlet, a cap detachably mounted on the inlet of the tank body, a deflector secured to the cap so as to be located in the inlet and having a first passage which is in ... | 12/14/1993 |
| 5250266 | Contact lens case venting system An appliance for disinfecting contact lenses or the like wherein the lenses are disposed within a disinfecting solution which liberates the gas during the disinfecting action, includes a container body for immersion of the lenses within the disinfecting s... | 10/05/1993 |
| 5232113 | Venting resealable container closure and associated method of manufacture A cap for substantially gas-tight sealing engagement with a container wall having an opening therein circumscribed by a sealing surface has an end wall and a depending skirt with a portion for securing the cap to the container wall. The cap is preferably ... | 08/03/1993 |
| 5213236 | Dispensing valve for packaging A dispensing package is provided for fluid products such as liquid soaps, shampoos and conditioners, household detergents, cleaners, polishes, moisturizing creams, and the like, and includes a container with a self-sealing dispensing valve mounted therein... | 05/25/1993 |
| 5114766 | Container provided with a multilayer cover with venting provisions and related method A package is provided which includes a container having a chamber and provided with an opening which is closed by a multi-layered sheet. The multi-layered sheet is coupled to the container in hermetically sealed relation. The multi-layer sheet includes fi... | 05/19/1992 |
| 5071017 | Closure cap construction with slitted flexible diaphragm A valving-type closure having a resilient diaphragm provided with a portion having a through slit for the passage of fluids, the slit portion being adapted to bulge and open the slit in response to fluid pressure applied to one side thereof. The slit port... | 12/10/1991 |
| 5048846 | Method for sealing gas release valve A method for filling gas release valves with sealant for affixing to packaging containers to be filled with a commodity which will generate a small amount of gases during shelf storage. The gas release valve having an apertured base film and a valve film ... | 09/17/1991 |
| 4987740 | Assured venting master cylinder diaphragm apparatus and method A diaphragm for a vented master cylinder reservoir which further includes means for opening the slit thereby assuring venting of the master cylinder reservoir is provided. The slit opening means are configured in such a manner that contact of the slit ope... | 01/29/1991 |
| 4956156 | Pressure venting system for lens cases An appliance for disinfecting contact lenses wherein the lenses are disposed within a lens disinfecting solution which produces a gas during the disinfecting action. The appliance has a container body with a lens holder for supporting a pair of contact le... | 09/11/1990 |
| 4896789 | Anti-leak fuel cap liner A vented fuel cap adapted to be removably attached to a filler neck of a fuel tank of the type commonly employed with small internal combustion engines is provided. The vented fuel cap comprises generally a generally cylindrical cap that is formed with in... | 01/30/1990 |
| 4552288 | Automatic venting sealing cap A sealing cap is provided for use in conjunction with safety storage containers and the like, which provides automatic venting and relief of interior vacuum, including low interior pressure resulting from contraction of the contents of the storage contain... | 11/12/1985 |
| 4458711 | Vent valve A plastic vent valve apparatus for use in connection with storage containers provides for equalization of the internal pressure of the container. Air is admitted into the container in response to a partial vacuum, while fumes or fluid contents of the cont... | 07/10/1984 |
| 4206870 | Pressure relief valve A pressure relief valve includes a flexible sheet bonded, except for a series of adhesive-free areas and channels therebetween, to a container having one or more holes in communication with said adhesive-free areas. The adhesive, preferably pressure-sensi... | 06/10/1980 |
| 4057168 | Vented test tube top A vented top for a bacteria culture medium tube having a body with through openings to hold one or more tubes simultaneously. A cap closes off all openings or opens them together. Vent means enable automatic venting of gases generated by the bacteria.... | 11/08/1977 |
