Patents Assigned to Hamilton
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Patent number: 6443052Abstract: A household electric appliance has three basic components, a griddle, a skillet which can be placed on the griddle to be heated thereby when the griddle is not otherwise in use, and a skillet lid which can be placed atop the skillet. The appliance can be compactly assembled for storage by changing the manner in which the components are stacked. When compactly assembled for storage, the three basic components can be clamped together and stored on edge to conserve lateral storage space. Two types of clamps are described, a resilient strap clamp and a wire rod clip. Operation of the appliance is controlled by a thermostat and a heating control panel is provided that has two sets of indicia, one for use when the griddle is used by itself and one for use when the skillet is used.Type: GrantFiled: February 22, 1999Date of Patent: September 3, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventors: Alan M. Garber, Phillip L. Brookshire, David L. Slayton, Lawrence M. Pillion, Stacey R. Just
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Patent number: 6444954Abstract: A toaster oven has a sheet metal chassis and plastic, cool-wall support walls which support the chassis. Both a pivotally-mounted bottom panel and a slidable crumb tray may be provided. Parts of the chassis are connected together without the use of fasteners or welds by twist tabs. A sheet metal top panel and, optionally, a plastic top panel extend over the top of the chassis. One of the support walls has a pair of locking pins and the plastic top wall has a forwardly-facing hook engaged with one of said locking pins and a rearwardly-facing hook engaged with the other of said locking pins. Support pads on the inner faces of the plastic support walls may cooperate with mounting members for supporting the toaster oven on the bottom of a kitchen cabinet. A control compartment beside the oven chamber houses electrical controls including a heat sensing thermistor mounted in a porcelain tube held against the wall that separates the control compartment from the oven chamber.Type: GrantFiled: November 10, 1999Date of Patent: September 3, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventor: Paul M. Blankenship
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Patent number: 6445451Abstract: A cassette reader for detecting the status of stained samples is provided. The colorimeter includes one or more high power emitting diodes as the source of illuminating the sample. An elliptical mirror, with a central aperture to permit the light to penetrate on to the sample, directs the scattered light on to its focal point at a detector. The colorimeter includes a microprocessor which compares an output signal for the percent ratio value of the detected values of a sample and a standard sample. The colorimeter housing provides position sensors which allow the identification of the well being examined. Finally, the system is modified to measure cell motility by determining the ratio of motile sperms to total cell concentration.Type: GrantFiled: February 12, 1999Date of Patent: September 3, 2002Assignee: Hamilton Thorne ResearchInventors: Diarmaid H. Douglas-Hamilton, Thomas G. Kenny
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Patent number: 6438962Abstract: An engine starting system (100) includes a starter (106) coupled to an engine (102) through a rotational energy storage device (108) such as spiral spring (108). When electrical power is applied to the starter (106), the rotational energy produced by the starter (106) is stored in the rotational energy storage device (108) allowing the starter (106) to rotate which reduces electrical currents in the starter and stress on system components. The rotational energy is gradually transferred to the engine (102) until the engine (102) is rotationally self-sustaining.Type: GrantFiled: September 11, 2000Date of Patent: August 27, 2002Assignee: Hamilton Sundstrand CorporationInventors: Edward S. Blain, Gary Goldberg, Branch Crooks, Jayne Lanham
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Patent number: 6442210Abstract: An AC-to-DC converter obtains phase and amplitude signal information from a displacement transducer that is excited by an AC excitation signal and provides an AC sensor signal indicative of transducer position. The converter includes a first rectifier circuit that receives and sums the AC excitation signal and the AC sensor signal, and rectifies the sum to provide a rectified summed excitation and input signal indicative thereof. A second rectifier circuit receives and rectifies the AC excitation signal, and provides a rectified excitation signal indicative thereof. A summing circuit computes the difference between the rectified summed excitation and input signal and the rectified excitation signal, and provides a signed DC signal indicative of displacement transducer position.Type: GrantFiled: July 24, 2001Date of Patent: August 27, 2002Assignee: Hamilton Sundstrand CorporationInventor: John D. Pennell
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Publication number: 20020113053Abstract: An electric toaster includes a chassis with one or more toasting compartments. At least one electric heater is located in each compartment, and a cage is positioned in each compartment adjacent the heater. The cage includes lateral sides with a gap therebetween for receiving a food item and stationary supports that extend into the gap from the lateral sides for supporting the food item during a toasting operation. The electric toaster also includes a movable food support rod that is positioned in the toasting compartment for movement between an upper rest position and a lower toasting position below the stationary supports. The movable food support rod is adapted to support the food item above the stationary support and to transfer support of the food item to the stationary support when the movable food support rod travels below the stationary supports.Type: ApplicationFiled: February 22, 2002Publication date: August 22, 2002Applicant: HAMILTON BEACH/PROCTOR-SILEX, INC.Inventors: Nhiem Viet Nguyen, John J. Datovech, James Gaynor
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Patent number: 6435009Abstract: A multi-function device for testing masks such as NBC masks used in civilian and military applications. In its preferred form, the device is self-contained and can be readily transported to field sites by one or two individuals. The device includes a protective storage and transport case. The case includes an upper portion and a lower portion. The upper portion of the case houses the power unit assembly and includes sufficient storage space to store such things as an aerosol generator reservoir, various headform accessories, a containment shroud, manuals (e.g. installation, operation and maintenance manuals) and nominal tools. The lower portion of the case houses the head assembly and controller unit which are preferably mounted on a cover or top panel. Underneath the top or cover panel of the lower portion of the case are stored the light scattering chamber, flow sensor, pressure transducer, circuit boards and valves.Type: GrantFiled: June 1, 1998Date of Patent: August 20, 2002Assignee: Hamilton Associates, Inc.Inventor: Greg Alan Tilley
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Patent number: 6433312Abstract: An electric roaster has a base housing which includes a first roaster tray mounted thereon, and a first heating element attached to a bottom side of the first roaster tray. The first roaster tray includes a surface slanting downward in a first direction from one side to the other side of the first roaster tray, and an oil collecting hole formed in the first roaster tray adjacent the other side of the first roaster tray. A collecting receptacle is disposed in the base housing below the oil collecting hole. A cover housing includes a second roaster tray mounted therein. One of the cover housing and the second roaster tray is connected pivotally to one of the base housing and the first roaster tray so that the first roaster tray is covered by the second roaster tray when the cover housing is turned to cover the base housing.Type: GrantFiled: November 23, 1999Date of Patent: August 13, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventor: Chung-Che Chen
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Patent number: 6431615Abstract: A latching assembly includes a latch mounted to a moveable member, the latch being moveable between a first position where it engages a stop of a base member to releasably secure the moveable member to the base member and a second releasing position. An actuator drives the latch between the first and second positions; and at least one spring biases the latch towards the first position.Type: GrantFiled: April 28, 2000Date of Patent: August 13, 2002Assignee: Fisher Hamilton L.L.C.Inventor: John M. Bastian
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Publication number: 20020105546Abstract: This invention relates to a method and system for activating a function at a station in an application operating on a hypertext document. The hypertext document contains control elements. Each control element has a set of attributes. The method involves parsing the attributes of the control element, sending the attributes to an object module associated with this control element, and invoking the object module to make a GUI object containing the attributes. Once the system invokes the object module, the object module associated with a particular control element is activated. The activated object module then displays the GUI object.Type: ApplicationFiled: December 19, 2001Publication date: August 8, 2002Applicant: Hamilton Scientific, Ltd.Inventor: George Ralph Kuntz
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Patent number: 6429407Abstract: A toaster having an electronic circuit including a chip-on-board ASIC that controls the operation of toaster heating elements and an electromagnet to which relatively high voltage is applied to hold an armature carried by a bread carriage and toaster-operating assembly. The armature is freely suspended from a bread carriage and toaster-operating assembly and accurately guided onto the electromagnet when the bread carriage is lowered. The toaster has a one-piece main frame that includes both a base frame plate and a rear frame plate. Several economies are obtained by virtue the construction of the toaster. A one-piece control support member is mounted on the base frame plate that supports both mechanical and electronic assemblies for controlling the operation of the toaster in predetermined relative positions.Type: GrantFiled: October 6, 1997Date of Patent: August 6, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventors: Alan M. Garber, Paul M. Blankenship, Helmut G. Prager
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Patent number: 6427984Abstract: An evaporative humidifier including a base removably supporting a water tray for holding a quantity of water. A blower assembly and a water tank are removably supported by the base above the water tray. The blower assembly includes a housing and a fan disposed intermediate a pair of air inlets and an air exhaust outlet. A cylindrically shaped wick filter is supported by the water tray and extends upwardly into the housing. The wick filter includes a cylindrical side wall and opposing open upper and lower ends. The fan is driven by a motor mounted inside the housing for drawing air into the housing through the air inlets, through the cylindrical side walls of the wick filter, and then through the open upper end of the wick filter and out of the housing through the air exhaust outlet.Type: GrantFiled: August 11, 2000Date of Patent: August 6, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventors: Patrick T Mulvaney, Michael E. Smith, Anthony V. Cruz
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Publication number: 20020100504Abstract: A low-noise liquid distribution system for delivering a liquid to a user on demand includes a reservoir and a tank oriented in an inverted position over the reservoir for distributing liquid from the tank to the reservoir. A vent tube has an inlet end that is located outside of the tank and an outlet end that is located in the tank above the liquid level. With this arrangement, when an opening of the tank and the vent tube are at, or immersed below, a level of liquid in the reservoir, the liquid is held within the tank by a combination of vacuum pressure acting on the liquid in the tank and atmospheric pressure acting on the liquid in the reservoir. However, when at least the vent tube is above the level of liquid in the reservoir, the vacuum within the tank is broken as air travels into the tank by way of the vent tube. Accordingly, liquid in the tank is delivered to the reservoir without the formation of air bubbles and their associated noise.Type: ApplicationFiled: January 31, 2002Publication date: August 1, 2002Applicant: HAMILTON BEACH/PROCTOR-SILEX, INC.Inventor: Patrick Mulvaney
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Patent number: 6422816Abstract: Maintenance requirements on a variable pitch propeller control system are minimized by eliminating the need for mechanical elements, such as a flyweight, mechanism in a secondary control for the variable pitch propeller. The system includes a secondary control (40) operating a pitch change mechanism (24) in response to the existence of at least one undesirable propeller condition and includes a target (34), (38) along with a target pickup (32), (36) for sensing the target (34), (38) and providing information to a function generator (76) which in turn provides information to a logic device (78), (80), (82), (84), (86), (88), (94) which in turn is connected to the pitch change mechanism (24) for operating the same.Type: GrantFiled: May 21, 2001Date of Patent: July 23, 2002Assignee: Hamilton Sundstrand CorporationInventor: David R. Danielson
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Patent number: 6415595Abstract: A thermal management system avoids problems associated with the recirculation of fuel through a fuel tank on an aircraft in a system that includes a fuel reservoir (70), a pump (72) for pumping fuel from the reservoir (70) to a first heat load (74) and then to a check valve (76) to a junction (78). At least one second heat load (80), (82), (84) is connected to the junction (78) and a fuel/fan air heat exchanger (104) having a fan air flow path in heat exchange relation with a fuel flow path having a fuel discharge end (106) connected to the junction (78). The fan air flow path is adapted to be connected to receive compressed air from the fan (30) of an engine (10). A bleed air/fuel heat exchanger (92) receives fuel from the second heat load and bleed air from the engine (10) and is connected to deliver fuel to the engine (10).Type: GrantFiled: August 22, 2000Date of Patent: July 9, 2002Assignee: Hamilton Sundstrand CorporationInventors: George E. Wilmot, Jr., Gregory M. Ott
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Patent number: 6413052Abstract: Fretting problems between clamped parts as, for example, flanges and aircraft power trains, is substantially eliminated through the use of a shim placed between the clamped flanges and which is rich in polytetrafluoroethylene at its surfaces abutting the flanges and includes an interior matrix of a strength giving fiber such as glass fiber.Type: GrantFiled: August 15, 2000Date of Patent: July 2, 2002Assignee: Hamilton Sundstrand CorporationInventor: Thomas Corley
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Publication number: 20020081203Abstract: The expense of a bearing employed at the interface of a yoke (22) and a propeller blade pin (14) in a variable pitch propeller assembly is reduced in a bearing construction (16) wherein a bearing race (48) includes a crowned surface (50) adapted to engage a slot (20) in the yoke (22) and having a profile (P1) wherein the diameter at one side (88, 90) of the race (48) is less than the diameter at the opposite side (90, 88) of the race (48).Type: ApplicationFiled: December 21, 2000Publication date: June 27, 2002Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Eric J. Talasco, Paul A. Carvalho
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Patent number: 6411109Abstract: A lug with relatively small resistance is provided that allows current to be determined between a source and a load by measuring the voltage drop across the lug. The voltage drop is sufficient to be above the electronic noise, and yet the resistance of the lug is low enough so that the heat produced by current flow is small compared with the heat generated by the source. The material comprising the lug is of a type and strength to be readily manufactured, and its resistivity varies by a relatively small amount with temperature.Type: GrantFiled: May 19, 2000Date of Patent: June 25, 2002Assignee: Hamilton Sundstrand CorporationInventor: Michael Hanson
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Patent number: D459144Type: GrantFiled: April 10, 2001Date of Patent: June 25, 2002Assignee: Hamilton Beach/Procter-Silex, Inc.Inventor: Martin Patrick Brady
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Patent number: D459457Type: GrantFiled: January 11, 2001Date of Patent: June 25, 2002Assignee: Hamilton Beach/Proctor-Silex, Inc.Inventors: Lawrence M. Pillion, Michael E. Smith