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Archive for the ‘Technology’ Category

Square piston engine – low emissions two-stroke engine

The Square Piston Engine (SPEC) represents the next stage in the evolution of the reciprocating internal combustion engine. It is a two-stroke engine with a square piston. In essence, the SPEC has a superior power-to-weight ratio compared to existing two-stroke engines. However, more importantly, it has significantly reduced emissions achieved by more complete combustion and a closed-loop oiling system. The engine is also modular in design, which provides significant manufacturing flexibility. The SPEC engine leverages existing two-stroke engine technology (lightweight, powerful, three moving parts only, cheap to manufacture, etc.) and at the same time eliminates the disadvantages. The port placement delays the opening of the exhaust port on the power stroke, yielding more torque and much lower emissions. A number of prototypes have been constructed and have operated on a variety of fuels. One such prototype has run in excess of 500 hours. Further development work is required to enhance engine efficiency through software modeling of port placement.

Square piston

Technology Benefits Description

The SPEC engine provides a number of benefits over existing engine design.  These include:

  • The engine is two-stroke by design, providing a superior power to weight ratio over comparable four-stroke engines.  It leverages existing engine technologies but eliminates the inherent disadvantages of current two-stroke engines.
  • The engine has the same three moving parts as a conventional two-stroke engine (crank, gudgeon and piston) and remains simple in its design.  This means it has a low cost to manufacture and is simple to maintain.
  • The engine is modular by design.  Multi-cylinder engines are simply a collection of single cylinder engines bolted together with a common crankshaft.  This feature provides flexibility and a lower cost manufacture.
  • The delayed opening of the exhaust port on the power stroke provides a cleaner more complete burn of the fuel.  This means the engine has lower exhaust and noise emissions and more engine torque than conventional two-stroke engines.  This advantage extends to the compression stroke, where the trapped volume is a higher percentage of the swept volume. Current loop scavenge engines trap about 50% whereas with porting on all four walls this engine should trap around 80%.
  • The closed loop engine oiling system that replaces the conventional two-stroke total loss system, provides for significant increase in the durability of components, reduced hydrocarbon consumption (and no blue smoke) and increased fuel flexibility.
  • The basic design of the engine lends itself to other manufacturing techniques, for example, extrusion.  This will yield lower manufacturing costs.

Technology Differentiation and Uniqueness

The engine is unique in a number of ways.  These include:

  • The engine oiling system is wholly contained within the piston itself.  This provides the closed loop system.
  • The cylinder and piston used in this engine are square.  This provides for increased flexibility of design and a lower cost of manufacture.
  • The base design lends itself to other manufacturing techniques and materials.


Understanding Search Engine Patents

Search related patents provide insight into what’s going on in search engine algorithms, and search marketers who understand these “rules of ranking” are better positioned to win top position in search results.

Skype launches new beta for feature phones

Skype announced a beta version of its client for Java-enabled mobile phones with the current list of compatible devices from Motorola, Nokia, and Samsung. The intent of this new mobile client is to expand Skype to the mass market feature phone.

While Skype is a VoIP solution that is extremely popular around the world, this current beta mobile implementation actually uses standard calls over carrier networks to make the actual call from your mobile phone. Most feature phones/mass market phones do not support WiFi or 3G networks in the U.S. so this is probably the best way to currently get the calls initiated. There are a few select countries where you can actually make calls via the Skype network directly in this current beta too, including Brazil (Rio de Janeiro), Denmark, Estonia, Finland, Poland, Sweden, and the United Kingdom. The call is then routed through Skype’s network to the person you are calling and the only charges that will apply are your carrier minutes. When you initiate a call a pop-up appears to ask if you want to make the local call and my phones kept calling an 813 area code number. It still does use WiFi or 3G networks to maintain your presence and carry out chats so it is a rather seamless experience on your device.

Orqis(R) Medical Awarded 15th U.S. Patent

Medical Corporation, a medical products company developing and marketing devices to improve cardiac performance through Aortic Flow Therapy, announced today that the USPTO has issued U.S. Patent number 7,331,921 (the ‘921 patent) entitled “Implantable Heart Assist System and Method of Applying Same.” The ‘921 patent which discloses and claims methods and apparatus for intravascular renal (kidney) perfusion is exclusively owned by Orqis and is the Company’s 15th U.S. Patent.

Patent #: US7331921
Title: Implantable heart assist system and method of applying same
Abstract: An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient’s heart, and methods of using same. One embodiment of the intravascular extracardiac system comprises a pump with inflow and outflow conduits that are sized and configured to be implantable intravascularly through a non-primary vessel, whereby it may positioned where desired within the patient’s vasculature. The system comprises a subcardiac pump that may be driven directly or electromagnetically from within or without the patient. The pump is configured to be operated continuously or in a pulsatile fashion, synchronous with the patient’s heart, thereby potentially reducing the afterload of the heart. In another embodiment, the system is positioned extracorporeally, with the inflow conduit and outflow conduit applied percutaneously to a non-primary vessel for circulating blood to and from the non-primary vessel or between the non-primary vessel and another blood vessel within the patient’s vasculature.
Assignee: Orqis Medical Corporation
Filed: June 28, 2004
Issued: February 19, 2008

Signalife Awarded New U.S. Patent, ‘System For, And Method Of, Monitoring Heartbeats Of A Patient’

USPTO has awarded Signalife, Inc. a new and important patent entitled “System For, And Method Of, Monitoring Heartbeats Of A Patient”. The patent, which covers 37 claims, will enhance the Company’s ability to develop new proprietary products.

ADA-ES Awarded Patent for Enhancement of Mercury Control Equipment

USPTO issued ADA-ES a patent covering technology to improve the performance of activated carbon injection equipment for control of mercury emissions from coal-fired electrical generating units. The invention is directed generally to treatment of gases to remove controlled materials and specifically to the treatment of flue gases to remove mercury and other contaminants.

Patent #: 7361209
Title: Apparatus and process for preparing sorbents for mercury control at the point of use
Abstract: A system for treating a contaminated gas stream is provided that includes a comminution device 204 operable to effect size reduction of a plurality of sorbent particles and form a plurality of comminuted particles, a plurality of nozzles 224 distributed through the gas stream and operable to introduce the plurality of comminuted particles into the gas stream, and a particle removal device 104 operable to remove at least most of the introduced comminuted particles and form a treated gas stream. The comminution device is in direct fluid communication with the nozzles.
Assignee: ADA Environmental Solutions, LLC
Inventors: Durham; Michael D,  Martin; Cameron E
Filed: April 2, 2004
Issued: April 22, 2008

TCS Issued Patent

TeleCommunication Systems, Inc. , a leading provider of mission-critical wireless communications, today announced the USPTO has issued patent number 7,355,990 for “Mobile-Originated. The invention relates to the communication between a mobile (i.e., wireless) device and an application server via a short message service center (SMSC) and the Internet.

Title: Mobile-originated to HTTP internet communications
Abstract: A mobile device-to-HTTP protocol gateway (MHG, or “MO Gateway”) which translates between Wireless Mobile Originated commands from an SMSC, and an application server on the Internet (i.e., a “web IP Server”). A wireless Internet gateway establishes communications with one or more relevant SMSCs using standard format SMPP commands, and the MHG utilizes HTTP protocol POST messages to post short messages originated at the mobile device to a particular URL. Return results are received by the MHG via HTTP protocol messages, translated to SMPP messages, and forwarded back to the SMSC for delivery to the mobile device. The wireless Internet Gateway communicates with the MHG using RMI protocol commands. An MHG in accordance with the principles of the present invention enables a developer to create mobile applications using standard web development tools, e.g., Java Servlets. The MHG allows standard format command messages to be used throughout the pathway between a mobile device and an application program on a web IP server at a particular URL.
Filed: April 25, 2005
Issued: April 8, 2008
Inventors: Smith; Richard A, Wilson; Johanna

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