Lurk
Michael Lurk, St. Louis, MO US
Patent application number | Description | Published |
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20100038903 | PIPE COUPLER AND COUPLING SYSTEM WITH POSITIVE RETENTION AND SEALING CAPABILITY - A coupler for joining a pipe to another pipe, a tee, or other fitting, which provides positive retention of a gasket about the circumference of the coupler sufficiently to precisely position and hold the gasket during placement about pipe ends and/or fittings to be coupled, and which provides controlled circumferential compression of the gasket during coupling, for positive sealing when the coupler is closed, and which provides a coupling system allowing one handed handling and operation during placement and coupling, such that the other hand can be used for supporting a pipe to be coupled, and which is operable for releasing and breaking loose the coupler and associated gasket from a pipe during uncoupling. | 02-18-2010 |
20100327576 | Pipe Coupler and Gasket With Positive Retention and Sealing Capability - A coupler for joining a pipe to another pipe, a tee, or other fitting, and more particularly, to a coupler which provides positive retention of the gasket about the circumference of the coupler sufficiently to precisely position and hold the gasket during placement about pipe ends and/or fittings to be coupled, and which provides controlled circumferential compression of the gasket during coupling, for positive sealing when the coupler is closed, while allowing one handed handling and operation during placement and coupling, such that the other hand can be used for supporting a pipe to be coupled, and which is operable for releasing and breaking loose the coupler and associated gasket from a pipe during uncoupling. | 12-30-2010 |
Michael James Lurk, Sainte Genevieve, MO US
Patent application number | Description | Published |
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20140284922 | DUAL USE COUPLING END FOR PIPES AND FITTINGS - The disclosure relates to a dual use coupling end including a pipe section having an annular recessed cam groove a distance from an annular endwardly facing surface of the pipe section, the cam groove defined by a curved or tapered cam groove surface extending gradually radially inwardly from an annular radial outer surface of the fitting adjacent toward the endwardly facing surface, to an annular clamp groove terminating on an opposite end by a radially outwardly extending annular clamp abutment surface located a distance from the endwardly facing surface. The clamp abutment surface extends a distance radially outwardly from the radial innermost portion to an annular beveled cam abutment surface at an acute angle to the clamp abutment surface and facing radially outwardly from the endwardly facing surface, the cam abutment surface disposed radially outwardly of the cam groove surface and including a radial outward discontinuous extension. | 09-25-2014 |
20150076384 | Butterfly Valve Assembly - A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc. | 03-19-2015 |
Volker Lurk, Offenburg DE
Patent application number | Description | Published |
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20090261766 | METHOD FOR CONTROLLING AN ELECTRIC MOTOR FED BY A CONSTANT VOLTAGE SUPPLY SYSTEM - Disclosed is a method for controlling an electric motor ( | 10-22-2009 |
20100150736 | FAN SYSTEM HAVING IMPROVED AVAILABILITY AND METHOD FOR ITS OPERATION - The present invention relates to a fan system and a method for its operation, including a control module ( | 06-17-2010 |
20130004148 | ELECTRIC MOTOR HAVING A PULSE WIDTH MODULATOR - The invention relates to an electric motor having a stator and a rotor. The electric motor also comprises a controller, wherein the controller is connected to the stator and/or rotor, and is designed for applying current to the stator and/or rotor for rotating the rotor. According to the invention, the controller comprises a pulse width modulator designed for controlling a power output of the electric motor, in order to generate a predetermined number of different current application patterns. The current application patterns each represent a power output of the electric motor, and preferably comprise a time sequence of current pulses, each having a current pulse duration. The controller is designed for applying current to the electric motor according to at least two different current application patterns for actuating the electric motor during a time interval of actuation, such that a power output of the electric motor in the time-based average of the time interval of actuation, in particular from the beginning to the end of the time interval, is different from the power outputs represented by the current application patterns in the time interval of actuation. | 01-03-2013 |
20130057187 | METHOD AND DEVICE FOR DETECTING BLOCKING OR SLUGGISHNESS OF A DC MOTOR - The invention relates to a method for detecting blocking or sluggishness (M | 03-07-2013 |