John Christopher Michel

US Patent:

6428764, Aug 6, 2002

Filed:

May 5, 2000

Appl. No.:

09/565352

Inventors:

John Byrne Michel - West Chester PA
Paul Douglas Vernooy - Media PA

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C01B 2522

US Classification:

423490, 423483, 423484, 4231573

Abstract:

A process is disclosed for producing calcium fluoride. The process comprises (a) mixing phosphate rock with aqueous H SiF at ambient temperature for at least one hour; (b) nucleating the calcium fluoride in the slurry prepared in step (a) by reacting the slurry at a temperature and for a time sufficient to initiate and sustain nucleation of calcium fluoride and SiO by-product; (c) aggregating the SiO by-product by heating the slurry produced in step (b) at a temperature of about 90Â C. to about 105Â C. for at least 0. 5 hours; and (d) recovering a calcium fluoride-containing product of an average particle size of less than 1 micron.

US Patent:

6566539, May 20, 2003

Filed:

Jul 18, 2002

Appl. No.:

10/198424

Inventors:

Daniel Campos - Lancaster PA
Richard Edward Ernst - Kennett Square PA
John Byrne Michel - West Chester PA

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C07D30708

US Classification:

549326, 549508, 568864, 502 40, 502 41

Abstract:

A process for the production of tetrahydrofuran, gamma butyrolactone, 1,4-butane diol and the like from a hydrogenatable precursor such as maleic acid, succinic acid, corresponding esters and their mixtures and the like in the presence of hydrogen and a noble metal catalyst, wherein oxidizing agents such as hydrogen peroxide, oxygen or air are used to regenerate spent noble metal catalyst for further use in the process.

US Patent:

40192741, Apr 26, 1977

Filed:

Sep 20, 1976

Appl. No.:

5/724753

Inventors:

Harper Landell - Downingtown PA
John M. Michel - Downingtown PA

Assignee:

Woodstream Corporation - Lititz PA

International Classification:

A01K 9704

US Classification:

43 55

Abstract:

A trolling bucket for carrying live bait or the like and adapted to be towed behind a boat comprising a hollow shell, preferably of resilient material with a spring-pressed door normally covering an opening into the interior chamber. Latching means provides for securing the door in an opened position to enable the bucket to be loaded or emptied. Releasing means actuable from the exterior of the shell frees the door from its latching engagement. The releasing means can be a portion of the latching member extending exteriorly of the shell or the door can be released by retracting an extendable handle so that portions of the same slide interiorly of the shell and engage the door.

US Patent:

40238407, May 17, 1977

Filed:

May 13, 1976

Appl. No.:

5/685748

Inventors:

Anthony J. Souza - Lancaster PA
John M. Michel - Downingtown PA

Assignee:

Woodstream Corporation - PA

International Classification:

E05C 1912

US Classification:

292113

Abstract:

A latch assembly for use with a tackle box or other container is disclosed. The latch assembly includes a latch top segment, a latch bottom segment and a receiver, all of which may be manufactured by injection molding. The latch assembly includes the feature that no separate pins or rivets are required either to assemble the components or to attach the latch assembly to the container with which it is employed.

US Patent:

43446469, Aug 17, 1982

Filed:

May 27, 1980

Appl. No.:

6/153562

Inventors:

John M. Michel - Coatesville PA

Assignee:

Woodstream Corporation - Lititz PA

International Classification:

E05C 1906

US Classification:

292 87

Abstract:

A detachable latch for a container is arranged to snap fit into a latch pocket and operate with minimal or no frictional interference in releasing a projecting bolt member from a closure position wherein it projects through a slot in the container cover. In a first embodiment, the base of the latch member abuts the pocket wall and is restrained from upward displacement by a wing-slot engagement. A retainer blade projects forwardly from the upper half of the latch to a location above a retainer shelf of the container body to preclude downward displacement of the latch. At least one nub projects upwardly from the shelf to provide minimal contact with the underside of the blade if the blade is inadvertently lowered into contact with the shelf. To open the container, the latch is flexed about its base by pushing the upper part of the latch into the pocket, thereby removing the bolt at the top of the latch from the cover slot. In a second embodiment, the container has symmetrically opposed covers and is served by a single latch having independently flexible halves.

US Patent:

49343610, Jun 19, 1990

Filed:

Feb 17, 1989

Appl. No.:

7/300355

Inventors:

John M. Michel - Coatesville PA
James P. Kline - Reading PA

Assignee:

WGM Safety Corp. - Reading PA

International Classification:

A62B 700

US Classification:

12820617

Abstract:

Breathing equipment, e. g. , a half mask-type respirator, is disclosed. A mask is provided with three ports of common dimension in any one of which inhalation or exhalation fittings housing inhalation or exhalation valves may be mounted. Disclosed are chemical and mechanical filtration cartridges usable alternatively or in combination. Disposable chemical filtration cartridges having novel lock and seal structure are disclosed. Bayonet-type couplings for coupling the filter housings to the inhalation respiratory fittings and an audible device to indicate that the filter housings are properly coupled are disclosed. The respirator valve is a thin umbrella-shaped disk valve having a multiplicity of radiating ribs which biases the valve to the closed position. A novel crown strap suspension is also provided.

US Patent:

48503460, Jul 25, 1989

Filed:

Oct 20, 1986

Appl. No.:

6/921139

Inventors:

John M. Michel - Coatesville PA
James P. Kline - Reading PA

Assignee:

WGM Safety Corp. - Reading PA

International Classification:

A62B 700

US Classification:

12820615

Abstract:

Breathing equipment, e. g. , a half mask-type respirator, is disclosed. A mask is provided with three ports of common dimension in any one of which inhalation or exhalation fittings housing inhalation or exhilation valves may be mounted. Disclosed are chemical and mechanical filtration cartridges usable alternatively or in combination. Disposable chemical filtration cartridges having novel lock and seal structure are disclosed. Bayonet-type couplings for coupling the filter housings to the inhalation respiratory fittings and an audible device to indicate that the filter housings are properly coupled are disclosed. The respirator valve is a thin umbrella-shaped disk valve having a multiplicity of radiating ribs which biases the valve to the closed position. A novel crown strap suspension is also provided.

US Patent:

62186205, Apr 17, 2001

Filed:

May 19, 1999

Appl. No.:

9/314840

Inventors:

John M. Michel - Coatesville PA

International Classification:

H02G 706

US Classification:

174 92

Abstract:

An elongated waterproof enclosure for spliced telephone cables is provided by a two-part molded resinous housing that provides openings for one or more cables at opposite ends. A one piece resilient sealing gasket includes longitudinally slitted tubular gaskets at the ends to snugly receive individual cables side by side. The grommets at each end are formed integrally and connected by flat connecting pieces arranged to be transverse to opposed narrow edges of the mating opposed housing portions. The narrow edges when clamped together pinch and seal the flat pieces. Housing ends conforming to the grommets also have opposed narrow edges which, when clamped together, pinch the grommets and provide a seal. The housing pieces are preferably connected along one side by an integral molded hinge offset from the opposed longitudinal edges to give the seal clearance. At the opposite side of the housing, offset from the edges, are rigid flanges molded integrally with the housing parts.