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 |
| RE43398 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. The present invention involves a... | 05/22/2012 |
| 8151792 | Oxygen concentrating apparatus and execution support method of home oxygen therapy using the same In order to enable a medical worker to certainly and easily know whether a patient on a home oxygen therapy, who continues to inhale an oxygen-enriched gas at home, performs the inhalation as prescribed, a history of a supply condition of the oxygen-enriched gas sup... | 04/10/2012 |
| 8015970 | Respirator, welding helmet, or face shield that has low surface energy hard-coat lens A personal safety protective device that includes a lens and a support structure onto which the lens is secured. The lens includes a substrate and a hard-coat layer located on the substrate of the lens. The hard-coat layer has a low surface energy outer surface that... | 09/13/2011 |
| 7866315 | Method and apparatus for controlling the purity of oxygen produced by an oxygen concentrator An oxygen concentrator comprises a plurality of adsorbent columns, each having an inlet, an outlet and abed of adsorbent material. The oxygen concentrator also includes a vacuum pump for removing separated nitrogen rich gas from the column inlets, a control valve fo... | 01/11/2011 |
| 7766009 | Portable liquid oxygen unit with multiple operational orientations A portable liquid oxygen (LOX) storage/delivery apparatus is provided, including an insulated (LOX) container having an interior, a bottom portion and a sidewall, the sidewall including a first side portion and a second side portion, both extending between the top p... | 08/03/2010 |
| 7721733 | Portable liquid oxygen delivery system A portable liquid oxygen medical delivery system including a portable liquid oxygen delivery apparatus and a portable liquid oxygen recharger. The portable liquid oxygen delivery apparatus contains an initial quantity of liquid oxygen. The liquid oxygen delivery app... | 05/25/2010 |
| 7490605 | High efficiency liquid oxygen system A high-efficiency liquid oxygen (LOX) storage/delivery system utilizes a portable LOX/delivery apparatus with a portable LOX container. A portable-unit LOX transfer connector is connected to the portable LOX container and is connectable to a main source of LOX in a ... | 02/17/2009 |
| 7431032 | Low power ambulatory oxygen concentrator An oxygen concentrator comprises a vacuum swing adsorption (VSA) gas separation system which includes a cartridge containing a mass of adsorbent material for producing oxygen, a drive which activates the gas separation system, and a power source comprising a mass. A... | 10/07/2008 |
| 7318327 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid oxygen with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, a switch is electrically couple... | 01/15/2008 |
| 7296569 | Portable liquid oxygen unit with multiple operational orientations A portable liquid oxygen (LOX) storage/delivery apparatus is provided, including an insulated (LOX) container having an interior, a top portion, a bottom portion and a sidewall, the sidewall including a first side portion and a second side portion, both extending be... | 11/20/2007 |
| 7259963 | Rack height cooling A data center includes an electronic equipment rack having a front face and a back face and a cooling unit positioned adjacent to the rack, the cooling unit having a front face and a back face, the cooling unit being configured to exhaust cooled air from the front f... | 08/21/2007 |
| 7235222 | Process for treating waste anesthetic gas To provide a process and an apparatus for treating a waste anesthetic gas containing a volatile anesthetic and nitrous oxide discharged from an operating room by introducing the gas into an adsorbing cylinder filled with an adsorbent, where the volatile anesthetic c... | 06/26/2007 |
| 7213400 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid gas, such as liquid oxygen, with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, liquid oxy... | 05/08/2007 |
| 7210312 | Energy efficient, inexpensive extraction of oxygen from ambient air for portable and home use Apparatus and method for separating oxygen directly from air, operating at substantially atmospheric pressure and recuperating energy used for cooling incoming air. An ambient air input leads from the atmosphere to a vessel for confining gases. A cryocooler has a co... | 05/01/2007 |
| 7201163 | Method for altering the body temperature of a patient using a nebulized mist Methods for changing the body temperature of a patient by having them breathe a mist created by nebulizer. The temperature of the mist is adjusted using a heat exchanger. The methods may be used to either cool or warm patients for a variety of clinical reasons. In a... | 04/10/2007 |
| 7171963 | Product pump for an oxygen concentrator A product pump for pumping separated product gas from an oxygen concentrator which produces oxygen-rich product gas by utilizing a vacuum swing adsorption (VSA) process. The oxygen concentrator comprises a cartridge containing an adsorbent material for separating th... | 02/06/2007 |
| 7165422 | Small-scale gas liquefier A cryogenic gas is liquefied using a refrigeration system [101] thermally coupled at an evaporator [125] to a cold end of a gas supply system [103] within a dewar [116]. The refrigerator has a minimum temperature at an evaporator [125 | 01/23/2007 |
| 7165546 | Nitrous oxide based oxygen supply system A self-contained system which converts nitrous oxide to a breathable gas mixture of nitrogen and oxygen. In the preferred embodiment of the present invention, a portable system is disclosed wherein liquefied nitrous oxide is converted to a breathable gas mixture of ... | 01/23/2007 |
| 7165013 | Scuba diver electronic assistant The present invention is an electronic device to assist divers including scuba divers. The electronic device is submersible under water and is water tight and pressure proof to a range of depths usually achieved by divers, including scuba divers. The electronic comp... | 01/16/2007 |
| 7150280 | Method and system for delivery of therapeutic gas to a patient and for filling a cylinder A system for filling a portable cylinder with therapeutic gas, and providing therapeutic gas to a patient. Therapeutic gas delivery to a patient may be through a conserver, or may be in a continuous mode. Some embodiments of the invention may test the contents of th... | 12/19/2006 |
| 7121906 | Method and apparatus for decreasing marine vessel power plant exhaust temperature According to the present invention, a method and apparatus for generating power aboard a marine vessel is provided. The method comprises the steps of: (a) providing a Rankine Cycle device that includes at least one of each of an evaporator, a turbo-generator that in... | 10/17/2006 |
| 7121116 | Method and device for producing oxygen A oxygen-production device includes a pulse-tube cryocooler for cooling air to liquefy oxygen, and a main container for obtaining and retaining liquefied oxygen. The main container has a heat regenerator, a cold head, and a pulse tube of the pulse-tube cryocooler th... | 10/17/2006 |
| 7121276 | Personal oxygen concentrator An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use. ... | 10/17/2006 |
| 7100603 | System for providing protection from reactive oxygen species Method, apparatus and breathable compositions for protecting a person from reactive oxygen species in the body are described. The invention involves providing a person with a breathing gas composition comprising at least one fuel gas compound. Apparatus and methods ... | 09/05/2006 |
| 7093479 | Method and apparatus for indicating a parameter of transmitted fluid The invention concerns a method and apparatus for indicating a parameter of a transmitted fluid. One embodiment of the invention comprises a fluid source operatively coupled to a conduit for transmitting a fluid from the fluid source. In addition, a sensor detects a... | 08/22/2006 |
| 7063085 | Gas delivery and monitoring system The present invention provides a system for a gas delivery and monitoring system for delivering a gas product to a patient and receiving a gas product exhaled from a patient. In an embodiment, the gas delivery and monitoring system includes a head support made of re... | 06/20/2006 |
| 7059138 | Biological refrigeration system A refrigeration system especially useful for refrigerating biological samples wherein a cryocooler, such as one employing a pressure wave from a pressure wave generator, is used to generate refrigeration for cooling liquid coolant or purging fluid, which is employed... | 06/13/2006 |
| 7055522 | Patient-ventilator synchronization using dual phase sensors An improved ventilator which delivers ventilatory support that is synchronized with the phase of the patent's respiratory efforts and guarantees a targeted minimum ventilation. Improved synchronization is achieved through an instantaneous respiratory phase determina... | 06/06/2006 |
| 6910510 | Portable, cryogenic gas delivery apparatus A portable, cryogenic gas delivery apparatus includes a chamber which contains cryogenic material, such as oxygen, in both liquid and gas phases. A probe is mounted to move relative to the chamber in response to variations in pressure in the gas phase within the cha... | 06/28/2005 |
| 6904758 | Cryogenic vessel with an ullage space venturi assembly A cryogenic vessel includes a first, outer vessel assembly having an outer vessel and a liquid fill line assembly and a second, ullage space vessel having a bottom and disposed within the first, outer vessel, adjacent to the top of the first, outer vessel. The liqui... | 06/14/2005 |
| 6904913 | Method and system for delivery of therapeutic gas to a patient and for filling a cylinder A system for filling a portable cylinder with therapeutic gas, and providing therapeutic gas to a patient. Therapeutic gas delivery to a patient may be through a conserver, or may be in a continuous mode. Some embodiments of the invention may test the contents of th... | 06/14/2005 |
| 6843247 | Portable liquid oxygen unit with multiple operational orientations A portable liquid oxygen (LOX) storage/delivery apparatus is provided, including an insulated LOX container having an interior, a top portion, bottom portion, and sidewall, the sidewall including a first and second side portion, both extending between the top and bo... | 01/18/2005 |
| 6742517 | High efficiency liquid oxygen system A high-efficiency liquid oxygen, (LOX) storage/delivery system utilizes a portable LOX/delivery apparatus with a portable LOX container. A portable-unit LOX transfer connector is connected to the portable LOX container and is connectable to a main source of LOX in a... | 06/01/2004 |
| 6698423 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. The present invention... | 03/02/2004 |
| 6681764 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator A control system for a home ambulatory liquid oxygen system having an oxygen concentrator, condenser, cryocooler, a heater and a storage dewar, includes an oxygen concentration sensor which senses the concentration of oxygen gas generated by the oxygen co... | 01/27/2004 |
| 6651653 | Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator The present invention is directed to a much safer and less expensive way of providing portable oxygen from a gas concentrator for patients who do not want to be tied to a stationary machine or restricted by present oxygen technology. In one preferred embo... | 11/25/2003 |
| 6575159 | Portable liquid oxygen unit with multiple operational orientations A portable liquid oxygen (LOX) storage/delivery apparatus is provided, including an insulated (LOX) container having an interior, a bottom portion and a sidewall, the sidewall including a first side portion and a second side portion, both extending betwee... | 06/10/2003 |
| 6520176 | Portable oxygen concentrator An oxygen concentrator portable by a patient, permitting producing a flow of gas containing 50% to 95% of oxygen from air, comprising air compression device, elements for gas separation by adsorption with pressure variations, and electrical energy storage... | 02/18/2003 |
| 6513521 | Cryogenic mixed gas single phase storage and delivery A system and method for storage and delivery of a cryogenic mixed gas is disclosed, the storage apparatus including a compact and lightweight dewar for containing cryogenic temperature mixed gas at supercritical pressure. Different heat exchangers associa... | 02/04/2003 |
| 6347627 | Nitrous oxide based oxygen supply system A self-contained system which converts nitrous oxide to a breathable gas mixture of nitrogen and oxygen. In the preferred embodiment of the present invention, a portable system is disclosed wherein liquefied nitrous oxide is converted to a breathable gas ... | 02/19/2002 |