Mccord Winn Textron Inc.

Anthony R Haba, Ii

David A Gattuso

Carl F Kackenmeister

Jeffrey I Finkelstein

Steven Castrigno

Tuan A Dam

Bruce T Long

Alfred E Bissell, Iii

Babak Sardashti

Donna L Lizotte

Richard D Rhodes, Jr

A system of inflatable air cells is constructed and installed in a seat at locations that are strategic to the comfort of the user. The air cells are connected to a pump through a manifold which sequentially connects each cell independently to the pump. The manifold controls the flow of fluid in the air cell distribution system by means of a system of valves and senses the pressure in each cell by means of a transducer. A microcomputer is programmed with data representing a desired comfort level for each of the air cells. By sequentially activating individual manifold valves, a pressure signal from the transducer can be generated for each cell. The pressure signals are received by the microcomputer and are correlated with the predetermined comfort data to generate a control signal which activates the pump. In this manner each of the cells can be individually inflated or deflated to the desired pressure level. By varying the number and location of the cells the system becomes responsive to the localized pressures exerted on the body for a great variety of users.

Interactive, individually controlled, multiple bladder seating comfort

A low energy consumption valve module (16) includes low energy consumption valves (20) having either bimorphs or monomorphs defined by a circular diaphragm (21) carrying one or more piezoelectric discs (22) (23) operative to position a sealing disc (36) for sealing a valve seat (34). In one embodiment the discs are energized across conductive seals (51,52,54,56) and in another embodiment the discs are energized by a pair of flexible conductors (150). A process for making the bimorphs or monomorphs comprises a tape cast process in which ceramic with piezoelectric properties is shaped without machining. A process for making the valve module providing a valve body (200) and valve cover (202) of either laser energy transparent or laser energy absorbent polyimide material that are joined at a line to line contact (210) and sealed upon application of a laser welding beam to the line to line contact between the valve body and the valve cover at the perimeter thereof.

Multi-valve module having a ceramic piezoelectric actuator

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Stratham, NH, United States of America

Anthony R Haba, Ii