Resumes
Resumes
Robert Kachman Phones & Addresses
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Grosse Pointe Farms, MI
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Lincoln, MI
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283 Mcmillan Rd, Grosse Pointe, MI 48236 (313) 884-3455
Work
Position:
Homemaker
Education
Degree:
High school graduate or higher
Business Records
Name / Title
Company / Classification
Phones & Addresses
Owner
Kachman Products
Mfg Sporting/Athletic Goods
Mfg Sporting/Athletic Goods
1281 Player Dr, Troy, MI 48085
(248) 879-8520
(248) 879-8520
Publications
Us Patents
Pneumatic Control Valve
View pageUS Patent:
51333805, Jul 28, 1992
Filed:
Jun 5, 1991
Appl. No.:
7/710583
Inventors:
Hugh V. Jamieson - Lathrup Village MI
Endre A. Mayer - Troy MI
Robert D. Kachman - Troy MI
Matthew E. Green - Waterford MI
Endre A. Mayer - Troy MI
Robert D. Kachman - Troy MI
Matthew E. Green - Waterford MI
Assignee:
Schenck Pegasus Corp. - Troy MI
International Classification:
G05D 1620
US Classification:
137 83
Abstract:
A pneumatic control valve (10) including a valve body (12) with fixed aperture plate (14), a movable redirector (18) and a force motor (26). The force motor (26) supports the redirector (18) adjacent to the aperture surface (16) of the fixed aperture plate (14) and is operable to move the redirector (18) back and forth along a line (28) without contacting the aperture surface. The aperture surface (16) has a plurality of apertures (70,72,74,76,78) with metering edges (124,126,128,130,132,134,136,138). The redirector (18) has redirector cavities (102,104,106,108) with metering edges (140,142,144,146). The force motor (26) deflects the redirector (18) to positions in which one or more of the cavities in the redirector connect two or more of the apertures (70,72,74,76,78) and direct fluid from some apertures and into other apertures. The location, length and shape of the metering edges can be varied as required to obtain desired fluid flow characteristics.
Valve With Indicator Circuit
View pageUS Patent:
41429737, Mar 6, 1979
Filed:
Feb 17, 1977
Appl. No.:
5/769647
Inventors:
Robert D. Kachman - Madison Heights MI
Assignee:
Facet Enterprises, Inc. - Tulsa OK
International Classification:
B01D 3500
F16K 3700
G08B 2100
F16K 3700
G08B 2100
US Classification:
210 90
Abstract:
A Poppet valve is disclosed of the type in which a valve member located in a flow passage is biased to the closed position on a valve seat, and in which an electrical indication is provided, when the valve seats or unseats, by an indicator circuit which includes a current path through the valve and valve seat which is opened and closed by seating and unseating respectively of the valve. The valve construction includes a conductive rubber seal which insures a positive seal while allowing the passage of electric current for activating the indicator circuit. In one embodiment, a thin metal contact washer is used in conjunction with the rubber seal to enhance its conductivity, the configuration of the contact washer allowing good sealing contact while greatly improving the contact conductivity. The indicator circuit activates an indicator device such as a panel light in response to the making or breaking of the current path caused by seating or unseating of the valve.
High Frequency Response Servovalve With Electrical Position Feedback Element Structure And Method
View pageUS Patent:
49076159, Mar 13, 1990
Filed:
Nov 5, 1987
Appl. No.:
7/116912
Inventors:
Endre A. Meyer - Birmingham MI
Robert D. Kachman - Troy MI
Robert D. Kachman - Troy MI
Assignee:
Schenck Pegasus Corporation - Troy MI
International Classification:
F15B 1343
US Classification:
137 1
Abstract:
Electrohydraulic servovalve structure and method. The servovalve structure has minimum oil passage length and oil volume and a high response force motor with a light weight armature and a stiff flexible tube and includes a second stage pilot valve having an axially movable metering spool therein and a non contacting, electromagnetic, proximity type sensor positioned adjacent one end of the spool for converting axial spool position to an electrical signal. In modifications, a quartz or ceramic window is placed between the one end of the spool and sensor and electronics are placed on the servovalve adjacent the sensor for providing a low impedance spool position output signal from the servovalve. In accordance with the method of the invention, the axial position of the spool is sensed by the eddy current sensor and an electrical signal is provided representative of the position of the spool for use in controlling the electrohydraulic servovalve. In a modification, the position representative signal is converted to a low impedance signal at the servovalve.