Letton
Alan Letton, Summerfield, NC US
Patent application number | Description | Published |
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20090089933 | PRESSURE DISPERSION SUPPORT SYSTEMS - A pressure dispersion system includes a pressure dispersion pad and a pressure dispersing mattress system for body support and sleep. The pressure dispersion pad and pressure dispersing mattress systems reduce pressure points from a supported body to less than approximately 32 mm Hg to reduce or eliminate capillary closing and a resultant reduction in pressure concentration and resultant discomfort and repositioning during sleep. Empirical design from human body pressure mapping is used to identify support zones for which components are selected and assembled in the pressure dispersion support systems for pressure dispersion and relief. In a pressure dispersion support system in the form of a mattress, multiple zones are defined by arrangement of different kinds of support materials, including foam tops such as memory foam or moderate to low density polyurethane, and secondary foam layers or foam base of relatively higher density polyurethane and latex. Different types of foam and foam constructs are provided in different zones of the pressure dispersion pad. Incorporation of the pressure dispersion pad in a mattress system, and in combination with foam dampening inserts in an innerspring of the mattress system, translate the pressure relieving properties of the zoned pressure dispersion pad into a mattress system. | 04-09-2009 |
20100325806 | PRESSURE DISPERSION SUPPORT SYSTEMS - A pressure dispersion system includes a pressure dispersion pad and a pressure dispersing mattress system for body support and sleep. The pressure dispersion pad and pressure dispersing mattress systems reduce pressure points from a supported body to less than approximately 32 mm Hg to reduce or eliminate capillary closing and a resultant reduction in pressure concentration and resultant discomfort and repositioning during sleep. Empirical design from human body pressure mapping is used to identify support zones for which components are selected and assembled in the pressure dispersion support systems for pressure dispersion and relief. In a pressure dispersion support system in the form of a mattress, multiple zones are defined by arrangement of different kinds of support materials, including foam tops such as memory foam or moderate to low density polyurethane, and secondary foam layers or foam base of relatively higher density polyurethane and latex. Different types of foam and foam constructs are provided in different zones of the pressure dispersion pad. Incorporation of the pressure dispersion pad in a mattress system, and in combination with foam dampening inserts in an innerspring of the mattress system, translate the pressure relieving properties of the zoned pressure dispersion pad into a mattress system. | 12-30-2010 |
Alan Letton, New Brunswick, NJ US
Patent application number | Description | Published |
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20100152410 | HIGH MOLECULAR WEIGHT POLYMERS, DEVICES AND METHOD FOR MAKING AND USING SAME - Anhydride polymers that release active or activatable agent(s) have pre-selected properties such as molecular weight, flexibility, hardness, adhesiveness, and other valuable properties. The polymers are suitable for use in compositions, formulations, coatings, devices, and the like that benefit from the controlled release of an agent(s) over a period of time. The polymers are prepared by a process involving various alternative and sequential steps that allow the design a priori of products with specific characteristics. The polymers are suitable as delivery systems, either by themselves, as compositions, formulations or devices. | 06-17-2010 |
Andrew Martin Letton, Redwood Estates, CA US
Patent application number | Description | Published |
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20140091751 | System And Method Of Using High Energy Battery Packs - Energy storage system having one or more battery packs and a system controller for controlling the battery packs. Each battery pack has rechargeable storage cells and a battery pack controller in communication with the system controller. Through the operation of the system controller, battery packs with different initial charge states can be operated in parallel during the charge or discharge process. Discharging multiple battery packs in parallel offers not only higher capacity and longer run time than is available from a single battery pack, but also offers higher peak currents than available from a single battery pack, important in motor control applications. Battery pack design including a battery pack connector with both power and control contacts supporting user replacement of the battery packs. | 04-03-2014 |
John Caradoc Letton, Lewes GB
Patent application number | Description | Published |
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20080289286 | Method of constructing foundation substructure and a building - The present invention provides a method of constructing a foundation substructure and a building involving pouring concrete between resilient sheets of insulating material, preferably polystyrene, so as to form a complete concrete shell. | 11-27-2008 |