Mathieu Jose Vertenstein
Engineers at Rosemary Way, Denver, CO

4229279, Oct 21, 1980

Aug 31, 1979

6/071758

Frank B. Price - Jefferson County CO
Mathieu J. Vertenstein - Denver CO

Silver Engineering Works, Inc. - Denver CO

C25C 700, C25C 702

204297R

This invention relates to an electroplating electrode characterized by a drum having a longitudinally-extending groove therein that constitutes the groove of a first tongue and groove connector, the tongue of which comprises a second tongue and groove connector adapted for insertion into the groove of the first. The invention also encompasses the method of mounting an article to be plated on the drum of such an electrode which includes the steps of preshaping the article to define a drum-encircling portion thereof bearing a precise predetermined dimensional relationship to the outer circumference of the drum, clamping the edges of said article bordering said drum-encircling portion in the second of the two tongue and groove connectors to establish a continuous current path therearound, placing the endless loop thus formed around the drum of the electrode and depressing the tongue of the first tongue and groove connector defined by the second into the groove of the first to bring that drum-encircling portion of the article to be plated into intimate conductive contact.

4375990, Mar 8, 1983

Nov 7, 1980

6/204850

Frank B. Price - Jefferson County CO
Mathieu J. Vertenstein - Denver CO

Silver Engineering Works, Inc. - Denver CO

B04B 100, B04B 300, C13F 106

127 19

An improved basket assembly and method of making same of the type designed for use in a sugar centrifuge that includes an annular mounting flange containing an upwardly-flared frustoconical seat and an open-bottomed conical element adapted to mate in assembled relation with the aforementioned frustoconical flange seat. The apparatus is characterized by shaping the opposed surfaces at the lower end of the cone and base of the seat so as to cooperate with one another in assembled relation to define an upwardly-opening and inwardly-flared continuous annular groove for the reception of a weld. The apparatus also includes a circumferentially-spaced series of apertures in the wall of the cone opening onto the conical surface of the seat when assembled to receive a corresponding number of plug welds. The method of assembling the cone and flange assembly includes the unique feature of taking advantage of the shrinking action of the continuous annular weld to draw the cone down into its seat thus defining a shrink fit therebetween and maintaining the relationship thus established upon relaxation of the external forces holding the parts in assembled relation by placing distortion-free plug welds within the cone apertures.

4496199, Jan 29, 1985

Oct 12, 1983

6/541045

Mathieu J. Vertenstein - Denver CO
Albert A. Amerigian - Aurora CO

Silver Engineering Works, Inc. - Aurora CO

F16C 1928

384474

This invention relates to an improved pillow block characterized by a cast body containing a main bore for housing an antifriction bearing and cast bolt-receiving slots for mounting same and for attaching endplates thereto that do away with the need for drilled and tapped holes. The endplates are cut from common sheet materials and gang-drilled to provide the apertures that accept the bolts used to assemble same onto the opposite faces of the body with an O-ring therebetween to establish a fluid-tight seal. In like manner, a hole cutter is used to cut rather than drill a central hole for passing the rotating element to be journalled in the bearing.

4052304, Oct 4, 1977

Jul 21, 1976

5/707154

Mathieu J. Vertenstein - Denver CO

CF&I Engineers, Inc. - Denver CO

B04B 300, B01D 3302

210 78

An air and massecuite warming device comprising a pair of nested, concentric frusto-conical tubular members positioned above a massecuite separating centrifuge in which steam is directed into the chamber formed between the nested members. The steam is discharged from the inner member by a plurality of nozzles located in the conical wall of the inner member forming a vortex. Before contacting the massecuite, the steam mixes with the air drawn through the centrifuge, raising the air temperature. This warm air reduces the massecuite viscosity by increasing the temperature of the massecuite and the temperature of the centrifuge elements contacting the massecuite thereby increasing the centrifuge separation capacity and improving the purity of the sugar produced.

4202527, May 13, 1980

Nov 16, 1977

5/851884

Frank B. Price - Denver CO
Mathieu J. Vertenstein - Denver CO

Silver Engineering Works, Inc. - Denver CO

F16K 31124

251 58

A fluid control valve having a pair of blades arranged one above the other in superimposed relation for relative movement in parallel planes, each of said blades including means having a generally concave edge, and said concave edges when arranged in opposed overlapped relation cooperating with one another to define an opening whose size varies with the degree of overlap. Simultaneous movement of both blades is such that the edges of the openings therein move either toward or away from one another to vary the size of the opening without appreciably displacing the center thereof. A suitable reciprocating actuator serves as the means for simultaneously actuating both blades, one of said blades being directly connected thereto while the other is operatively associated with the blade so-connected by a rigid link.

5167629, Dec 1, 1992

Dec 6, 1990

7/622932

Mathieu J. Vertenstein - Denver CO
Mildred W. Lawson - Denver CO

A61M 500

604116

A vein locator for locating a vein of a patient for insertion of a venous access catheter. The locator comprises a sleeve partially encompassing the vein to be located, and a ring removably attached to the sleeve. The ring has protuberances around an opening wherein the protuberances can be felt through the skin of the patient to locate the vein. The opening surrounded by the protuberances defines the vein location for insertion of the catheter. The method of locating a vein and the method of inserting a venous access catheter is also contemplated by the invention.