Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7372056 | LPP EUV plasma source material target delivery system An EUV light generation system and method is disclosed that may comprise a droplet generator producing plasma source material target droplets traveling toward the vicinity of a plasma source material target irradiation site; a drive laser; a drive laser focusing opt... | 05/13/2008 |
| 7368741 | Extreme ultraviolet light source The present invention provides a reliable, high-repetition rate, production line compatible high energy photon source. A very hot plasma containing an active material is produced in vacuum chamber. The active material is an atomic element having an emission line wit... | 05/06/2008 |
| 7365349 | EUV light source collector lifetime improvements An apparatus and method for cleaning a plasma source material compound from a plasma produced EUV light source collector optic which may comprise reacting the plasma source material compound with hydrogen to form a hydride of the plasma source material from the plas... | 04/29/2008 |
| 7365351 | Systems for protecting internal components of a EUV light source from plasma-generated debris Systems and methods are disclosed for protecting an EUV light source plasma production chamber optical element surface from debris generated by plasma formation. In one aspect of an embodiment of the present invention, a shield is disclosed which comprises at least ... | 04/29/2008 |
| 7361918 | High repetition rate laser produced plasma EUV light source An EUV light source apparatus and method are disclosed, which may comprise a pulsed laser providing laser pulses at a selected pulse repetition rate focused at a desired target ignition site; a target formation system providing discrete targets at a selected interva... | 04/22/2008 |
| 7323703 | EUV light source An apparatus and method is described which may comprise a plasma produced extreme ultraviolet (“EUV”) light source multilayer collector which may comprise a plasma formation chamber; a shell within the plasma formation chamber in the form of a collector shape ha... | 01/29/2008 |
| 7317196 | LPP EUV light source An apparatus and method is described for effectively and efficiently providing plasma irradiation laser light pulses in an LPP EUV light source which may comprise a laser initial target irradiation pulse generating mechanism irradiating a plasma initiation target wi... | 01/08/2008 |
| 7309871 | Collector for EUV light source An apparatus/method may comprise, a multi-layer reflecting coating forming an EUV reflective surface which may comprise an inter-diffusion barrier layer which may comprise a carbide selected from the group ZrC and NbC or a boride selected from the group ZrB2 | 12/18/2007 |
| 7291853 | Discharge produced plasma EUV light source An DPP EUV source is disclosed which may comprise a debris mitigation apparatus employing a metal halogen gas producing a metal halide from debris exiting the plasma. The EUV source may have a debris shield that may comprise a plurality of curvilinear shield members... | 11/06/2007 |
| 7247870 | Systems for protecting internal components of an EUV light source from plasma-generated debris Systems and methods are disclosed for protecting an EUV light source plasma production chamber optical element surface from debris generated by plasma formation. In one aspect of an embodiment of the present invention, a shield is disclosed which comprises at least ... | 07/24/2007 |
| 7217940 | Collector for EUV light source A method and apparatus for debris removal from a reflecting surface of an EUV collector in an EUV light source is disclosed which may comprise the reflecting surface comprises a first material and the debris comprises a second material and/or compounds of the second... | 05/15/2007 |
| 7217941 | Systems and methods for deflecting plasma-generated ions to prevent the ions from reaching an internal component of an EUV light source A system is disclosed for protecting an internal EUV light source component from ions generated at a plasma formation site. In one aspect, the system may comprise a plurality of foil plates and an arrangement for generating a magnetic field to deflect ions into one ... | 05/15/2007 |
| 7193228 | EUV light source optical elements Apparatus and methods are disclosed for forming plasma generated EUV light source optical elements, e.g., reflectors comprising MLM stacks employing various binary layer materials and capping layer(s) including single and binary capping layers for utilization in pla... | 03/20/2007 |
| 7180083 | EUV light source collector erosion mitigation An EUV light source collector erosion mitigation system and method is disclosed which may comprise a collector comprising a multilayered mirror collector comprising a collector outer surface composed of a capping material subject to removal due to a removing interac... | 02/20/2007 |
| 7180081 | Discharge produced plasma EUV light source An DPP EUV source is disclosed which may comprise a debris mitigation apparatus employing a metal halogen gas producing a metal halide from debris exiting the plasma. The EUV source may have a debris shield that may comprise a plurality of curvilinear shield members... | 02/20/2007 |
| 7164144 | EUV light source A laser produced plasma (“LPP”) extreme ultraviolet (“EUV”) light source control system comprises a target delivery system adapted to deliver moving plasma initiation targets and an EUV light collection optic having a focus defining a desired plasma initiati... | 01/16/2007 |
| 7141806 | EUV light source collector erosion mitigation An EUV light source collector erosion mitigation method and apparatus for a collector comprising a multilayered mirror collector comprising a collector outer surface composed of a capping material subject to removal due to a removing interaction with materials creat... | 11/28/2006 |
| 7122816 | Method and apparatus for EUV light source target material handling An EUV light source plasma source material handling system and method is disclosed which may comprise a droplet generator having a droplet generator plasma source material reservoir in fluid communication with a droplet formation capillary and maintained within a se... | 10/17/2006 |
| 7109503 | Systems for protecting internal components of an EUV light source from plasma-generated debris Systems and methods are disclosed for protecting an EUV light source plasma production chamber optical element surface from debris generated by plasma formation. In one aspect of an embodiment of the present invention, a shield is disclosed which comprises at least ... | 09/19/2006 |
| 7088758 | Relax gas discharge laser lithography light source An apparatus and method are disclosed for operating a narrow band short pulse duration gas discharge laser output light pulse beam producing system, producing a beam comprising laser output light pulses at a selected pulse repetition rate, which may comprise: a disp... | 08/08/2006 |
| 7088253 | Flame detector, method and fuel valve control A flame detector and burner fuel valve control has an ultraviolet sensitive, cold cathode, gas discharge tube in a DC quench circuit. In the presence of a flame, the circuit generates a pulse signal at a frequency related to the intensity of radiation from the flame... | 08/08/2006 |
| 7087914 | High repetition rate laser produced plasma EUV light source An EUV light source apparatus and method are disclosed, which may comprise a pulsed laser providing laser pulses at a selected pulse repetition rate focused at a desired target ignition site; a target formation system providing discrete targets at a selected interva... | 08/08/2006 |
| 7048537 | Apparatus and method for controlling a variable fuel fired appliance An apparatus is provided for controlling a fuel fired heating appliance, the apparatus comprising a first processor for controlling the ignition operation of the furnace and a second processor for controlling the operation of a variable speed blower motor, wherein t... | 05/23/2006 |
| 7044729 | Gas burner control for a bake oven The system (1) for controlling the combustion (7) of a cooking oven burner (2), comprises in combination a thermostat valve (3) with a rotary hand knob (4) and a non-electric temperature sensor (6) for modulating the burner ... | 05/16/2006 |
| 6972421 | Extreme ultraviolet light source The present invention provides a reliable, high-repetition rate, production line compatible high energy photon source. A very hot plasma containing an active material is produced in vacuum chamber. The active material is an atomic element having an emission line wit... | 12/06/2005 |
| 6916170 | Gas drier An apparatus for controlling gas valves in a gas drier is provided. The apparatus includes an igniter, a closed flame detection switch and a sustaining relay. The igniter, which starts a flame, connects to a first terminal which provides a power signal with respect ... | 07/12/2005 |
| 6609904 | Gas furnace control arrangement A gas furnace control arrangement includes a control unit control unit and an operating unit adapted to control the control unit, the control unit having a valve seat holding a set of solenoid valves, the solenoid valves including a main valve for fuel ga... | 08/26/2003 |
| 6494707 | Limited recycle for primary controls An oil burner control system is disclosed in which recycling between a loss of combustion to re-establishment of combustion is limited by counting the number of times recycling occurs and causing a the system to stop recycling and go to lockout after the ... | 12/17/2002 |
| 6216683 | Gas oven control A gas oven comprises at least a first burner element disposed within an oven cavity of the gas oven. A first control valve is disposed within a gas line connected to the burner element and to a gas source. The control valve controls gas flow to the burner... | 04/17/2001 |
| 6126435 | Electronic ignition system for a gas stove In an electronic ignition system for igniting a plurality of gas burners by means of a plurality of electrodes, each one being mounted adjacent with each burner for producing sparks for the ignition of each burner. A spark generating circuit connected wit... | 10/03/2000 |
| 6030205 | Gas oven control A gas oven comprises at least a first burner element disposed within an oven cavity of the gas oven. A first control valve is disposed within a gas line connected to the burner element and to a gas source. The control valve controls gas flow to the burner... | 02/29/2000 |
| 5941236 | Roofing kettle control apparatus Roofing kettle apparatus for heating asphalt includes a wheeled chassis mounting a vat and a heating system for heating the vat. The heating system includes a solenoid operated valve for controlling the flow of fuel gas from a fuel gas source to each of a... | 08/24/1999 |
| 5857845 | Independent burner ignition and flame-sense functions An ignition/reignition circuit (10) for a gas burner (12) having separate flame sensing and ignition electrodes. The flame sensing electrode (25,30) trips a switch (Q1) upon transition from sensor output signals indicative of the sensed presence of a flam... | 01/12/1999 |
| 5636978 | Combustion apparatus A gas burning power supply section 10 for igniting gas includes a secondary battery and a solar battery for charging the secondary battery, and the operating voltage from the power supply section 10 is supplied to a gas ignition circuit 30, a flame detect... | 06/10/1997 |
| 5425631 | Controlling a gaseous fuel burner and control valve therefor An electrically operated line valve has its outlet connected to the inlet of the manifold for supplying the user actuated individual gas burner valves and a user actuated line power switch is closed before opening of any of the burner valves. A valve posi... | 06/20/1995 |
| 5348466 | Heat exchanger system, fuel control system therefor and methods of making the same A heat exchanger system, a fuel control system therefor and methods of making the same are provided, the fuel control system having an electrical circuit means that comprises an ignition trial portion, a flame sensing control portion and a timer portion t... | 09/20/1994 |
| 5169303 | Gas range ignition, reignition device An ignition/reignition device for a gas burner which eliminates the isolation transformer of the prior art which includes a capacitive discharge curcuit which is connected to a high voltage transformer so as to provide ignition pulses to ignite a gas burn... | 12/08/1992 |
| 5141431 | Heat exchanger system, fuel control system therefor A heat exchanger system, a fuel control system therefor and methods of making the same are provided, the fuel control system having an electrical circuit means that comprises an ignition trial portion, a flame sensing control portion and a timer portion t... | 08/25/1992 |
| 5009588 | Time-delay circuit for automatic shutdown of furnace systems Time-delay circuit for automatic shutdown of furnace systems has an induced draft blower motor and a first circuit for providing energy to the blower motor from an energy source. A second circuit for energizing the primary control system of the furnace, i... | 04/23/1991 |
| 4934925 | Gas ignition apparatus A spark ignition system for a heater-type ignitor is disclosed. Current through the ignitor is transformed into a voltage which is utilized to operate a timing circuit which, in turn, causes operation of a valve permitting the flow of fuel to a burner. Op... | 06/19/1990 |