Raymond C Srail

59429615, Aug 24, 1999

Mar 22, 1995

8/407963

Raymond Charles Srail - Parma OH
Richard August Glover - Brookpark OH
Thomas Raymond Szczepanski - North Royalton OH
Eric Martin Weissman - Chagrin Falls OH
Frederic William Kunig - Akron OH

Flexmag Industries, Inc. - Marietta OH

H01F 720

335284

A process and apparatus for permitting the magnetization of flexible hard magnetic materials in the form of sheets or strips, such as magnetic rubber, wherein opposing arrays formed from alternating magnetic disks and flux conducting elements are use in sets of two with opposing polar moments such as to induce a magnetic flux in the gap between the discs. The width of the magnetic disk and flux conducting elements, respectively, are selected to optimize the magnetic pull strength of the material. At the array ends are flux conducting elements that are about 1/2 (i. e. , from about 0. 25 to about 0. 75, and preferably from about 0. 4 to 0. 6) of the width of the internal flux conducting elements. A material to be magnetized is passed between the array sets in contrast with both disks and consequently imprinted with magnetic poles. The magnetized properties of the material is enhanced by passing the material through a second set of arrays which are axially offset with respect to the first set of arrays.

52865762, Feb 15, 1994

Sep 12, 1991

7/759988

Raymond C. Srail - Parma OH
Richard A. Glover - Brookpark OH
Roy L. Orndorff - Kent OH

The B. F. Goodrich Company - Akron OH

B32B 2732
C08K 332

428517

Impact resistant and flame retardant polymer composition, slab-like rectangular solid made of said composition, and composite laminate article having at least one layer of said composition. The polymer composition comprises a maximum of 86 volume percent of ultra high molecular weight polyethylene (UHMWPE), a minimum of 4. 40 volume percent of a flame retardant additive or mixture thereof, and a minimum of 6 volume percent of chopped reinforcing fibers, all volumes referring to the densified (molded) state. In addition the bulk volume of the chopped reinforcing fibers, as measured by a tapped density test, must be a minimum of 27 percent of the final molded volume of the composition. The maximum volume % loading of the additives is limited by the requirement that the notched Izod impact strength is a minimum of 7 ft. -lb per inch width.

48914096, Jan 2, 1990

May 3, 1988

7/189937

Tiong H. Kuan - Hudson OH
Raymond C. Srail - Parma OH
Thomas R. Szczepanski - North Royalton OH

R.J.F. International - Brecksville OH

C09L 902
C09L 906

525237

Crystalline elastomeric network compositions are transformable from their original cured shape into an altered shape and subsequently back to their original shape. The transformation process, which is repeatable, is effected by the simultaneous application of heat and deformation forces. The amount of heat required, expressed in terms of temperature, is relatively low. The shape-transformable compositions of the present invention are single phase blends of one or more crystalline polymers and one or more elastomer polymers. The compositions generally have a single broad endotherm due probably to the co-crystallization of the different crystalline segments, a low glass transition temperature, and a low transformation temperature, that is generally less than 100. degree. C.

54283329, Jun 27, 1995

May 26, 1994

8/249668

Raymond C. Srail - Parma OH
Richard A. Glover - Brookpark OH
Thomas R. Szczepanski - North Royalton OH
Eric M. Weissman - Chagrin Falls OH
Frederic W. Kunig - Akron OH

RJF International Corporation - Brecksville OH

H01F 702
H01F 720
H01H 4700

335302

A process and apparatus for permitting the magnetization of flexible hard magnetic materials in the form of sheets or strips, such as magnetic rubber, wherein opposing arrays formed from alternating magnetic disks and flux conducting elements are use in sets of two with opposing polar moments such as to induce a magnetic flux in the gap between the discs. The width of the magnetic disk and flux conducting elements, respectively, are selected to optimize the magnetic pull strength of the material. At the array ends are flux conducting elements that are about 1/2 (i. e. , from about 0. 25 to about 0. 75, and preferably from about 0. 4 to 0. 6) of the width of the internal flux conducting elements. A material to be magnetized is passed between the array sets in contrast with both disks and consequently imprinted with magnetic poles. The magnetized properties of the material is enhanced by passing the material through a second set of arrays which are axially offset with respect to the first set of arrays.

50512005, Sep 24, 1991

Sep 19, 1989

7/409539

Raymond C. Srail - Parma OH
Richard A. Glover - Brookpark OH
Tiong H. Kuan - Hudson OH
Thomas R. Szczepanski - North Royalton OH

The B. F. Goodrich Company - Brecksville OH

C04B 3550
C08J 320
C08K 308
C08L 902

252 6254

A flexible magnetic blend composition is provided which is comprised of high energy rare earth magnetic particles in a flexible high temperature resistant and oil resistant polymer binder. The binder system preferably comprises a highly saturated nitrile rubber (HSN) or a polymer alloy of the same in which a HSN is the major polymer and also contains additives which are compatible with processing, subsequent electron beam curing, and final product performance. The binder system is high loaded, usually from about 50 to about 70 volume percent, with the high energy rare earth magnetic particles, which can produce bonded magnets with a maximum energy product of at least 2. 5 megagauss-oersteds, a remenance, B. sub. r of at least 3400 gauss, a coercive force, Hc, of at least 2900 oersteds and an intrinsic coercivity, Hci, of at least 5000 oersteds. The process for production of this system involves the binder system and rare earth magnetic particles being mixed and then formed into a final geometry before being cured by high voltage electron beam radiation.

50026771, Mar 26, 1991

Sep 19, 1989

7/409491

Raymond C. Srail - Parma OH
Richard A. Glover - Brookpark OH
Tiong H. Kuan - Hudson OH
Thomas R. Szczepanski - North Royalton OH

The B. F. Goodrich Company - Akron OH

C04B 3504

252 6254

A flexible magnetic blend composition is provided which is comprised of high energy ferrite magnetic particles in a flexible high temperature resistant and oil resistant polymer binder. The binder system is preferably a highly saturated nitrile rubber (HSN) or a polymer alloy of the same in which a HSN is the major polymer containing alloying polymers and/or additives which are compatible with processing, subsequent electron beam curing, and final product performance. The binder system is highly loaded usually from 55 to 65 volume percent with the high energy ferrite particles, i. e. , barium and/or strontium ferrite particles, which can produce bonded magnets with a maximum energy product of at least 1. 0 megagauss-oersteds, a remenance, Br, of at least 2000 gauss, a coercive force, H. sub. c, of at least 1800 oersteds, and an intrinsic coercivity, H. sub.