Michael J Mathews

US Patent:

46338535, Jan 6, 1987

Filed:

May 6, 1985

Appl. No.:

6/730815

Inventors:

Leonard Prill - Roseville MI
Michael F. Mathews - Roseville MI

International Classification:

F24H 100
F16K 1506

US Classification:

126362

Abstract:

A valve mechanism especially suited for use in the inlet and outlet conduits of a hot water heater system comprises a pair of cup shaped metallic members positioned within the respective conduit in telescopic relationship to each other with a coil spring concentrically disposed between the outer cylindrical surface of the inner cup shaped member and the inner cylindrical surface of the outer cup shaped member. An annular flange formed integrally with the inner cup shaped member is clamped between two casing members forming the valve body at the intersection of the two casing members and a screw bolt extends longitudinally and centrally within the valving cavity with the screw bolt clampingly secured at its upstream end to the end wall of the outer cup shaped member and carrying a washer at its downstream end which coacts with the end wall of the inner cup shaped member to open and close the valve.

US Patent:

20200377719, Dec 3, 2020

Filed:

Jun 1, 2020

Appl. No.:

16/889551

Inventors:

- Carpentersville IL, US
John Robert Ilkka - Royal Oak MI, US
Robert M. Adams - Overland Park KS, US
Allen Chanzhe Lee - Durham NC, US
Michael Allen Mathews - Glenview IL, US

International Classification:

C08L 67/03
B33Y 10/00
B33Y 70/00
B33Y 80/00
B29C 64/268

Abstract:

A thermosetting composition comprising a crosslinkable component such as a vinyl ester and/or an unsaturated polyester, and an initiator component, such as cumene hydroperoxide or BPO or blends of cumene hydroperoxide and methyl ethyl ketone peroxide. The composition is suitable to be used in additive manufacturing to form objects such as molds or prototypes.