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Attorney: Marks & Clerk


Number of patents: 567
Last date: May 08, 2012

                    15  
NumberTitleIssue Date
5311123Method of measuring the instantaneous shaft velocity of a rotary machine
A method of measuring the instantaneous shaft velocity of a rotary machine having a shaft with a plurality of circumferentially spaced markers thereon, comprises the steps of sensing the passage of the markers with at least two circumferentially spaced se...
05/10/1994
5299736Air freshener device with a ceramic container and an absorbent pad
An air freshener device, comprising a container with porous ceramic walls defining a closed internal space, a closure member for selectively permitting access to and sealing the internal space, and a replaceable absorbent pad the absorbent pad being impre...
04/05/1994
5280689Composite cladding panel
A composite cladding panel for application primarily to the exterior of buildings, comprises a core layer of lightweight insulating foam proving a thermal insulation of at least R10, said insulating foam being encapsulated in a layer of fluid impermeable ...
01/25/1994
5277159Two stroke diesel engine
A piston and cylinder arrangment for an internal combustion engine designed to run on diesel and similar fuels, comprises a cylinder defining a main combustion chamber, a piston reciprocatable within said cylinder and having a thermally insulating plate o...
01/11/1994
5269889Electrolytic cleaning and refurbishing of grinding wheels
In a method of grinding a workpiece employing a metallic grinding wheel sorting a non-conductive abrasive medium, a cathode is provided in spaced relationship with the abrasive surface so as to define a gap therewith. Electrolyte is caused to flow throug...
12/14/1993
5269811Primary fluid actuated, secondary fluid propelling system
A primary fluid actuated, secondary fluid propelling system, suitable for use, for example, as an implantable, artificial heart device, comprises a unidirectional pump for pumping electrorheological fluid, two return loops connected to the pump, and for e...
12/14/1993
5140258Disposable tamper detection device for electricity meters
A disposable tamper detection device for electricity meters of the type having a meter housing with current-carrying blades protruding therefrom for insertion into a meter socket, comprises a non-conductive board-like member having a pair of slots adapted...
08/18/1992
                    15  
 
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