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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 8061381 | Sucker rod pump with improved ball and seat There is provided a seat assembly for use in a downhole oil pump ball valve. The assembly includes a seat, a seat rest, and a ball. The seat is used for seating the ball of the ball valve. The seat has an outer wall and a top surface and a curved shoulder surface be... | 11/22/2011 |
| 7600532 | Check valve having integrally formed seat and seal body A valve assembly includes first and second conduits having respective first and second flanges in abutment with each other, a stopper in the second conduit, and a valve body secured between the first and second flanges. The valve body includes a body bore in communi... | 10/13/2009 |
| 7484526 | Sanitary check valve A check valve adapted for mounting between any flanges and specifically between sanitary flanges in a piping system, the check valve comprising a stationary portion and a flexible portion; the single-piece rigid stationary portion including and supporting a valve se... | 02/03/2009 |
| 7370813 | Multiple function dispenser A dispenser for mixing and dispensing a liquid chemical concentrate from a container with a dilutent. The dispenser includes a two piece slideable eductor assembly, one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjus... | 05/13/2008 |
| 7341206 | Multiple function dispenser A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentr... | 03/11/2008 |
| 7337790 | Dishwasher Disclosed is a dishwasher, in which upper and lower pipes are opened/closed using a water pressure to simplify a configuration of the dishwasher and to reduce product costs. The present invention includes a washing chamber, top and bottom nozzles injecting water in ... | 03/04/2008 |
| 7290566 | Diverter valve with improved seal A diverter valve for bulk solids is disclosed. The valve has a single inlet and two or more outlets, preferable three. Two pivotal gate valves are used for three outlets so that one is open and two are closed. The valve includes a novel pivotal gate structure which ... | 11/06/2007 |
| 7287545 | Sanitary check valve A check valve adapted for mounting between any flanges and specifically between sanitary flanges in a piping system, the check valve comprising a stationary portion and a flexible portion; the single-piece rigid stationary portion including and supporting a valve se... | 10/30/2007 |
| 7287581 | Full function vehicle HVAC/PTC thermal system The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted during dehumidification of the ventilation air to be transferred into d... | 10/30/2007 |
| 7178511 | Apparatus for controlling a pressure in a fuel inflow line In an apparatus (12) for controlling a pressure in a fuel inflow line of a motor vehicle, a shutoff valve (20) and a pressure limiting valve (21) are arranged in a connection (19). The connection (19) is arranged between an inflow ... | 02/20/2007 |
| 7108012 | Fluid control valve A fluid control valve for the mixing of hot and cold water and delivery at a selected flow rate is described wherein an upper housing and lower housing are clamped together by a snap-fit connection thereby enclosing other fluid control valve component parts. A ball ... | 09/19/2006 |
| 7083065 | Tank assembly A polymeric tank assembly is provided having a polymeric container with a neck opening. A ring with protruding barbs is inserted within the neck opening and the neck opening is placed in compression by a surround collar. The ring can be connected with clamping arms ... | 08/01/2006 |
| 7082847 | Sealing device An apparatus for sealing a wide variety of vessels and for providing access to the interior of such vessels while sealed. In some embodiments, a sealing apparatus includes a base plate, a cover plate, and a seal that is disposed therebetween. In use on a vessel, whe... | 08/01/2006 |
| 7077158 | Velocity head compensated valve assembly A valve assembly includes a valve body configured to define a chamber forming a primary flowpath between an inlet port and a discharge port, an isolator disposed inside said chamber, and a poppet having a bore. The isolator is defined by a skirt and a stem, with the... | 07/18/2006 |
| 7074328 | Mixing, aeration or oxygenating apparatus A mixing, aerating or oxygenating apparatus to aerate or oxygenate ponds, rivers or lakes, sewage or effluent treatment lagoons or beds or to airstrip volatile compounds from water or other solutes by distributing gas through a piped system having a plurality of out... | 07/11/2006 |
| 7063516 | One-way valve A double diaphragm pump including an air manifold, two air chambers to either side of the air manifold, two pump chambers to either side of the air chambers and diaphragms extending between the air chambers and pump chambers are stacked together in horizontal assemb... | 06/20/2006 |
| 7056106 | Discharge valve apparatus for reciprocating compressor A discharge valve apparatus for a reciprocating compressor comprises a discharge cover having built-in volume so as to cover a front end surface of the cylinder; a discharge valve disposed so as to be contacted/separated to/from the front end surface of the cylinder... | 06/06/2006 |
| 7051756 | Two stage metered relief check valve A pressure relief valve includes a cylindrical poppet having a fluid metering stem. The valve is configured such that the effective surface area of the transverse aspect of the poppet exposed to fluid pressure during a closed valve condition is greater than the effe... | 05/30/2006 |
| 7032272 | Friction hinge A motion control device for controlling the movement of an operational member about a first axis and about a second axis includes a spindle having a socket and a control arm wherein the socket defines a first axis opening. The device includes a cylindrical pivot mem... | 04/25/2006 |
| 7028709 | One-way valve with poppet member The valve includes a supply portion, a delivery portion and an intermediate fluid chamber; a poppet member is positioned within the fluid chamber and is adapted to move within the chamber, the poppet including a conical seating surface and a rim portion, the rim por... | 04/18/2006 |
| 7028981 | Non-return valve A non-return valve (10), typically of commonly called duckbill valve shape, comprising a valve body (12) and a valve membrane (14). The valve body (12) is generally tubular and includes an elongate passageway (16) with inlet (18... | 04/18/2006 |
| 7025289 | Multiple function dispenser A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentr... | 04/11/2006 |
| 6932100 | Flapper type fill tube check valve A flapper valve for push-in snap-lock attachment to a spud to be welded to a fuel tank and attached to a flexible filler tube hose. The flapper has an annular flexible seal overmolded thereon, preferably of elastomeric material. The flapper has a pair of trunnions, ... | 08/23/2005 |
| 6920899 | Fluid control valve A fluid control valve for controlling the delivery of water includes a control lever that is movable in two directions by rotation of the lever about two independent axes. The fluid control valve includes a valve body assembly with flow passageways and a housing ass... | 07/26/2005 |
| 6622795 | Flow actuated valve for use in a wellbore The present invention generally relates to a flow-actuated valve for use in a wellbore. The invention includes a body having a closing member and a seat. The closing member and seat are separable to open and close the valve, thereby allowing the flow of f... | 09/23/2003 |
| 6192926 | Safety valve especially for pneumatic circuits It comprises a body provided with an inlet and an outlet; a moving gate which separates said inlet and said outlet; a seat formed on said body and adapted for said gate to rest against it; hinge means of the gate to the body of the valve; and means for ke... | 02/27/2001 |
| 6152171 | Check valve A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder enga... | 11/28/2000 |
| 6123340 | Modular flow devices The present invention provides a seal for use in a modular flow device and is utilized for joining and aligning a first mating surface and second mating surface having axial flow passageways. The seal comprises a protruding annular radiused edge about the... | 09/26/2000 |
| 6105609 | Filtered check valve assembly A check valve assembly for an internal combustion engine includes a cup-shaped check valve housing having a cylindrical wall, an open end, and an upstream closed end, to define a chamber. An inlet passage extends through the closed end to introduce flow t... | 08/22/2000 |
| 6039073 | Check valve A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder enga... | 03/21/2000 |
| 6024121 | Check valve A check valve having a valve housing with a pair of opposite end faces including an upstream end face and a downstream end face. The valve housing has a fluid passage extending axially therethrough between the upstream end face and the downstream end face... | 02/15/2000 |
| 6019127 | Structure for connecting filler tube to fuel tank An inner diameter of a filler tube is formed smaller than that of a filler neck of a tank main body. Hence, a clearance is thus difficult to be created between inner peripheral surface of the filler tube and the fuel stream which flows through the filler ... | 02/01/2000 |
| 5960822 | Step valve The invention concerns a valve arrangement installed in a hydraulic system including a housing (17a, 17b) which is provided with two connections (22, 23) and includes a closing element (14) which lies in a neutral position on a valve seat (6). In accordan... | 10/05/1999 |
| 5950670 | Vacuum cup safety device A vacuum cup safety device selectively maintains pressure within a vacuum cup for an extended period of time until release of the vacuum is desired. The device includes a housing having first and second apertures extending through a first portion of the h... | 09/14/1999 |
| 5819792 | Check ball valve seat A check ball valve seat assembly for a diaphragm pump is provided that includes an annular carrier plate which accommodates an annular seat member. The assembly is sandwiched between two components of a diaphragm pump, such as a component for providing a ... | 10/13/1998 |
| 5713389 | Check valve and check valve seat The present invention is directed to a check valve assembly comprising an upstream body member and a downstream body member which are joined in sealing engagement to thereby form a closed body; a generally ring-shaped seating member formed from a unitary ... | 02/03/1998 |
| 5697382 | Heart valve assembly method A method of assembling a heart valve is provided for use with an inner and a spreadable outer stent. The outer stent is mounted onto a spreading tool including a spreading ring, and expander, and a plunger. A protective cap is placed over the outer stent ... | 12/16/1997 |
| 5664602 | Check valve for meter run A fluid check valve for preventing back flow of fluid through a fluid conduit. The check valve is connected in series with a meter run to enable unrestricted normal flow to occur through a passageway in the valve body, and to prevent backflow. A throat fo... | 09/09/1997 |
| 5522423 | Forged body full port swing check valve A full port swing check valve having a forged body and providing for the use of a replaceable swing wafer cartridge insert.... | 06/04/1996 |
| 5522885 | Assembly tooling for an autologous tissue heart valve An assembly tool for a bioprosthetic heart valve is disclosed. The tool assembles a valve having an inner and a spreadable outer stent, and includes a spreading ring with an elevated lip to hold the spread outer stent, an expander having fingers which con... | 06/04/1996 |
