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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 |
| 7426932 | Spray fill device and method for using the same A spray fill device for delivering water to a washing machine is provided. The spray fill device includes a body defining an inlet, an outlet port, a mounting port, and a plurality of outlet apertures in flow communication with the inlet. The spray fill device also ... | 09/23/2008 |
| 7341108 | Well downhole liquid dispenser A well downhole liquid dispenser is disclosed in which an inlet/discharge port assembly is provided having an inlet port in fluid communication with the shoulders of a conical piston. The point of the conical piston is in physical contact with the discharge channel ... | 03/11/2008 |
| 7334594 | Apparatus and method for adjusting a locking mechanism of a shunt valve A shunt valve assembly includes an electromechanical brake mechanism that locks a position of a pressure setting mechanism within a shunt valve assembly. The electromechanical brake can maintain the position of the pressure setting mechanism in the presence of a rel... | 02/26/2008 |
| 7310942 | Exhaust passage control valve Exhaust passage control valve 10 may comprise housing 30, valve member 20, and helical torsion spring 40. Housing 30 has an exhaust passage. Exhaust gas from an internal combustion engine flows through the exhaust passage of the ho... | 12/25/2007 |
| 7278838 | Inlet check valve with removable seat An inlet check valve is mountable to a valve body that, in turn, is mounted to a high pressure pump. The inlet check valve has a removable inlet seat with a first through-hole forming an inlet path and functioning as a valve seat. A valve is positionable over the fi... | 10/09/2007 |
| 7258136 | Pressure regulator A pressure regulator for regulating fuel pressure in an internal combustion engine, containing a valve including a closing member forced into a valve seat by the action of an angularly shaped valve leaf spring one arm of which is braced on the closing member and the... | 08/21/2007 |
| 7258135 | Pressure regulator for a fuel supply system of an internal combustion engine A pressure regulator for a fuel supply system of an internal combustion engine for regulating a fuel pressure, including a valve, having a valve ball forced against a valve seat into the closing position by the action of a valve leaf spring. With the valve open, at ... | 08/21/2007 |
| 7237409 | Steam cleaner with safety device A safety valve mounted in a steam cleaner is provided. The safety valve comprises a cap assembly, an actuation assembly, and a lock assembly. A rotation of the cap is adapted to detach the cap assembly when the steam cleaner is not operating or steam pressure inside... | 07/03/2007 |
| 7124739 | Fuel pressure adjusting apparatus A fuel pressure adjusting apparatus which includes a casing which includes a fuel introduction port, and a fuel discharge port; and a cylindrical member which is housed in the casing, and which includes a valve seat at an end portion thereof, and a communication pas... | 10/24/2006 |
| 6948521 | Check valve device A check valve device includes a valve section of a valve plug arranged in a fluid passage of a body, the valve plug being in a valve-opened state when separated from a seat section, and the valve plug being in a valve-closed state when seated on the seat section, an... | 09/27/2005 |
| 6892758 | Check valve with vibration prevention function for valve body A transmission member that transmits urging force of a helical spring to a valve body is disposed between the valve body and the helical spring. The transmission member changes a direction of an urging force transmitted to the valve body such that the urging force i... | 05/17/2005 |
| 6681798 | Pressure regulator The invention relates to a pressure regulator for a fuel injection system of an internal combustion engine, in which a pressure difference prevailing between a pressure inlet and a pressure outlet can be kept essentially constant by opening and closing at... | 01/27/2004 |
| 6681796 | Drainage valve pipe tap assembly A drainage valve tap assembly for connection of a branch line to a main line while simultaneously forming a freeze proof drain comprising a hollow body having a first end and a second end, a cutting tube attached to the first end of the body; a handle hav... | 01/27/2004 |
| 6662824 | Check valve slantedly biased against pressure-imposing direction A check valve allowing one-way fluid flow is disposed at an outlet side of a pressurizing pump. The check valve includes a valve seat and a valve body for opening and closing a fluid passage in response to a fluid pressure supplied to the check valve. The... | 12/16/2003 |
| 6581721 | Valve for a control muffler A valve for a control muffler includes: a valve element which is swingably journaled on a support shaft 5 supported by shaft holes 41a of a pair of first shaft supporting portions 41 inside the support shaft 5; bushes 6 which are respectively interposed b... | 06/24/2003 |
| 6527524 | Double acting simplex plunger pump with bi-directional valves A bi-directional fluid valve apparatus comprising a valve member adapted to co-act with an annular shoulder at the end of a fluid bore, the valve member having two axial ends. A flat surface on a first end having a diameter greater than that of the should... | 03/04/2003 |
| 6527006 | Exhaust valve assembly An exhaust valve assembly for controlling the flow of exhaust comprising a hollow elongated member, desirably in the form of an exhaust pipe or component thereof, having an open end, a flap associated with the open end and a spring having two ends. The fl... | 03/04/2003 |
| 6508932 | Filter with valve having a hydrophobic coating A filter, especially a filter for lubricating oil of an internal combustion engine, including an inlet for the raw liquid and an outlet for the clean liquid. A filter insert (12) is arranged inside the filter, as well as a valve, such as a pressure relief... | 01/21/2003 |
| 6484720 | Five spring regulator An oxygen gas therapy regulator is provided which is small in size and has particularly uniform output characteristics. The regulator uses five springs evenly spaced around a circle concentric with the axis of the regulator piston thereby providing unifor... | 11/26/2002 |
| 6443184 | Radially loaded, poppet-type check valve A poppet-type check valve for controlling fluid flow including a valve housing having an interior and first and second ports therein communicating with the interior of said valve housing for permitting fluid flow from an upstream side to a downstream side... | 09/03/2002 |
| 6432135 | Torsion heart valve A rigid leaflet blood check valve uses a torsion wire suspension to suspend the leaflet. The leaflet is non-contacting with the housing. Complete washout of all valve parts in blood contact exists. This eliminates areas of blood stasis which exist in valv... | 08/13/2002 |
| 6338246 | Exhaust passage control valve An exhaust passage control valve has a valve element of a spiral shape mounted on a valve seat portion of a housing through which exhaust gases from an engine pass. The valve element is urged by a valve spring in a direction of closing the valve. A spring... | 01/15/2002 |
| 6237633 | Low emission disconnect system A low emission fluid disconnect is provided along a flexible flow line for transmitting fluid from the transport to a bulkhead. The disconnect includes a ball valve including a ball rotated between the opened and the closed positions about a stem axis. Th... | 05/29/2001 |
| 6227299 | Flapper valve with biasing flapper closure assembly A flapper valve assembly (110) having a biasing flapper closure assembly (102) is disclosed. The flapper valve assembly (110) comprises tubular valve housing (94) having a hinge (100) and a longitudinal hole (104). A valve seat (92) is mounted within the ... | 05/08/2001 |
| 6227239 | Spring-loaded safety valve An automatically resetting safety valve for a generator circuit breaker is to open rapidly and wide, even if the pressure applied to a valve-closing body (1) does not increase substantially over a valve stroke (a) or even falls. In order to ensure this, a... | 05/08/2001 |
| 6164311 | Pressure regulator for watering system A pressure regulator for a drinking system for birds or other animals that includes a housing and first and second engaging members for engaging the elongated supports for the fluid supply conduit of the drinking system. The first engaging member includes... | 12/26/2000 |
| 6155295 | Low emission disconnect system A low emission fluid disconnect 10 is provided along a flexible flow line 12 for transmitting fluid from the transport 16 to a bulkhead 14. The disconnect includes a ball valve 32 including a ball 31 rotated between the opened and the closed positions abo... | 12/05/2000 |
| 6102682 | Slidable discharge valve in a hermetic rotary compressor A compressor comprises a cylinder assembly forming a compression space. A compressing member is movable disposed in the compression space for compressing fluid therein. A discharge port communicates with the compression space for discharging compressed fl... | 08/15/2000 |
| 6024126 | Uniform cross-section and ribbed thermoplastic compressor valve A uniform cross-section and ribbed thermoplastic compressor valve which can be used as a discharge valve for a compressor and has internal rib structure and uniform wall thickness. The valve member can be made of high-performance polymeric resin such as p... | 02/15/2000 |
| 5931190 | Relief valve A relief valve assembly includes a valve element mounted for movement along a valve axis between a sealing position and a relief position. A spring arm engaged with the valve element urges the valve element toward the sealing position. The spring arm has ... | 08/03/1999 |
| 5913331 | Check valve A check valve for preventing backflow in a conduit. The check valve includes a check valve mechanism having a valve seat defining an opening for fluid flow, a seal retainer positioned downstream of the valve seat and configured to seal the opening and a l... | 06/22/1999 |
| 5873385 | Check valve A check valve 10 for a fluid passageway 12 or 14 of a pressure balancer 16 or the like, and having a base plate 40 with an opening 62 therethrough connected in the passageway 12 or 14. The underside 42 of the base plate 40 disposed in the passageway 12 or... | 02/23/1999 |
| 5855225 | Tank transport pressure relief valve assembly A pressure relief valve for releasing fluid through a vent in a railway tank car, tank trucks and similar vessels. A valve disk is normally biased in a closed position by a plurality of constant-force springs of laminated steel tapes on drums supported on... | 01/05/1999 |
| 5713390 | Pressure gauge capable of automatically discharging air therefrom A pressure gauge has a housing unit which includes an air inlet, an air outlet, an air chamber communicated fluidly with the air inlet, and a pressure relief chamber communicated fluidly with the air chamber via a pressure relief passage and with the outl... | 02/03/1998 |
| 5680881 | Valve system for hermetic reciprocating compressor The present invention relates to a valve system for the hermetic reciprocating compressor, and more particularly, to reduce the gap volume of the spouting hole so as to help smoothly spout out the refrigerant through the spouting hole formed at the valve ... | 10/28/1997 |
| 5564467 | Poppet check valve A poppet check valve for resisting fluid flow through an orifice in a backflow direction includes a valve element, a valve seat defining a valve orifice, and at least first and second torsion springs mounted to apply a pre-determined closing force to bias... | 10/15/1996 |
| 5537998 | Emergency manual resuscitator with means for detecting air pressure An elastomeric bag having opposite ends, a first opening at one of the bag ends and adapted to be connected to a resuscitator assembly, a second opening at the other of the bag ends, and a one-way flap valve at the second opening. The bag when compressed ... | 07/23/1996 |
| 5415198 | Safety vent and deflector for a pressurized vessel A deflector has a ring attached at a first end to a pressurized vessel and around the sealed opening in the vessel. Rods project from a second end of the ring and a cover is mounted on the rods with springs holding the cover over the second end of said ri... | 05/16/1995 |
| 5390698 | Plate-type, unidirectional-flow, fluid control valve A valve seat and valve guard are coupled together, and form a chamber therebetween within which a valving plate moves. A stud secures the seat and guard together, and has a bore formed therewithin for receiving a headed piston. The piston has a projecting... | 02/21/1995 |
| 5346373 | Refrigeration compressor having a spherical discharge valve A small single cylinder hermetic refrigeration compressor has a flat valve plate extending across the end of the cylinder. A discharge port is formed in the valve plate with a spherical valve seat and a spherical poppet member is moveable to and from the ... | 09/13/1994 |
