Vaden, III; Frank S. - US Patent Attorneys and Agents

Attorney: Vaden, III; Frank S.

Number of patents: 29
Last date: January 02, 2001

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Number	Title	Issue Date
6167812	Elevated cableway system An improved cableway system for providing a track over which a vehicle traverses. The improved system includes a catenary cable system and a pair of track cable systems. The track cable systems are hung from the catenary cable system and support tracks ov...	01/02/2001
6117493	Bearing with improved wear resistance and method for making same A steel bearing member having an erosion resistant surface and a method of making the same is disclosed. The steel bearing member comprising a bearing substrate, a first overlay of hardbanding material having sintered cemented metal carbide pellets in ste...	09/12/2000
6080581	Culture vessel for growing or culturing cells, cellular aggregates, tissues and organoids and methods for using same A bioreactor system for culturing cells, cellular aggregates, tissues and organoids and methods of using same includes a cylindrical reactor vessel having an unobstructed longitudinal axis that is rotated about that horizontal axis to suspend cells and/or...	06/27/2000
4904942	Electroseismic prospecting by detection of an electromagnetic signal produced by dipolar movement A method of electroseismic prospecting is disclosed for detecting either the presence of two immiscible fluids present in a porous subterranean formation or the presence of a high-permeability rock formation including a substantially aqueous phase therein...	02/27/1990
4905204	Method of weighting a trace stack from a plurality of input traces A method is disclosed for developing a weight function for a trace stack from the weight functions derived from the respective weight functions of an ensemble of individual separate input traces. Also disclosed is the method of developing the resulting we...	02/27/1990
4347908	Apparatus for traversing a terrain in a predetermined pattern Apparatus is disclosed in which a self-propelled vehicle is caused to traverse a terrain by following a line arranged over the terrain in a predetermined manner, and means are provided for normally holding the line in a position close to terrain and thus ...	09/07/1982
4296598	Apparatus for providing false twist to moving yarn Apparatus including two endless aprons, one operating inside the other, the top strands thereof forming a contact zone therebetween. The aprons are angled with respect to each other preferably between 130 and 150 degrees. The yarn applied through the zone...	10/27/1981
4261030	Wrap-around parabolic light fixture and method for manufacture An improved light fixture for housing an elongated lamp and method for making same, the fixture having an elongated housing constructed from a continuous rectangular piece of sheet metal having four parallel bends therein forming planar side walls. The pl...	04/07/1981
4260218	Stabilized optical system with off-axis stabilizer Disclosed is a stabilized optical system, including a housing, an objective lens group mounted to the housing for collecting light from the image to be viewed, and an eyepiece lens group adjustably mounted to the housing for focusing the image at the eye ...	04/07/1981
4240853	Lens closure for light fixture and method for attachment An enclosure for a light fixture and the method for making such an enclosure via the securement of a plastic or glass lens, wherein the light fixture has a window which does not have to be opened in normal use for replacement of bulb, but is normally acce...	12/23/1980
4236234	Radio frequency seismic gathering system employing an airborne blimp The central station of a radio-connected seismic surveying system uses a tethered blimp carrying an antenna and an electronics package including a dc voltage/rf decoupler, a variable dc controlled preamplifier, a P-I-N diode switch for changing the antenn...	11/25/1980
4220895	Non-interfering, overlapping high frequency signalling for lamp dimmer circuit A network for the development of a square wave in a first time period as set by the timing occurrence of a first voltage to a predetermined threshold level and another network for the development of a square wave in a second time period as set by the timi...	09/02/1980
4219761	Incandescent lamp dimmer providing control voltage IES square law compliance correction A dimmer and regulation circuit connected to an incandescent lamp load for controlling the voltage thereto from an ac source by gating off a portion of each cycle. The circuit used to provide the gating includes a pulse generator controlled by a timer pro...	08/26/1980
4213164	Electronic protection circuit incorporating voltage divider sensing, gating and triggering A protection circuit for producing one or more triggers in the presence of a monitored overvoltage condition employing a complex voltage divider network including slow-acting breakover semiconductor devices for sensing ac voltage overloads in either or bo...	07/15/1980
4209738	Regulation circuit A regulation circuit for providing timing gate signals to the dc power section of a power supply, the regulation circuit utilizing phase angle conduction of a programmable unijunction transistor. The conduction angle is determined by the occurrence of the...	06/24/1980
4204148	Regulation circuit A regulation circuit for providing timing gate signals to the dc power section of a power supply, the regulation circuit utilizing phase angle conduction of a programmable unijunction transistor. The conduction angle is determined by the occurrence of the...	05/20/1980
4204141	Adjustable DC pulse circuit for variation over a predetermined range using two timer networks A circuit for providing a dc pulse, such as to a gated semiconductor for at least partial bypass of a ballast element connected to an HID lamp, the pulse being developed within a time range of an associated ac voltage. A first timer operably connected to ...	05/20/1980
4197912	Oil recovery via silicone introduction This invention concerns introduction of a silicone-containing composition and a liquid hydrocarbon propellant into an oil and gas reservoir. The silicone-containing composition improves the interface between the reservoir fluids and solids facilitating re...	04/15/1980
4197485	Optocoupler dimmer circuit for high intensity, gaseous discharge lamp A dimmer circuit for a high intensity, gaseous discharge lamp having a ballast with a reactive portion, the current bypass or partial bypass of which determines the brightness of the lamp, the bypass being controlled by gated bypass means, preferably in t...	04/08/1980
4192745	Reclamation of cement slurry The invention relates to the re-utilization of cement slurry previously regarded as waste. The method involves separating water from the slurry so as to concentrate it, agitating the concentrated slurry so as to keep it in uniform disperson and disposing ...	03/11/1980
4192191	Pressure sensor A mechanical and electrical pressure sensor wherein the mechanical part includes a fluid pressure chamber with a magnetic, electrically conductive diaphragm moving out-of-contact with a stationary contact in the presence of pressure and into contact there...	03/11/1980
4181873	High frequency dimmer circuit for high intensity, gaseous discharge lamp A dimmer circuit for providing gate signal to a gated semiconductor connected for at least partial bypass operation of a ballast element of an HID lamp, the gate signal being derived from a high frequency voltage in a predetermined range. The high frequen...	01/01/1980
4175281	Ceiling mounted support structure A ceiling mounted support structure for mounting light fixtures, louvers, and the like, including at least one support piece mounted or supported by at least one building ceiling support, the piece having an elongate slot therein in which an enlarged end ...	11/20/1979
4170747	Fixed frequency, variable duty cycle, square wave dimmer for high intensity gaseous discharge lamp A dimmer circuit for an HID lamp is provided for supplying a square wave current therethrough at a constant frequency, but whose duty cycle is variable dependent on a sensed current level. The circuit employs a first pair of transistor switches for revers...	10/09/1979
4144478	Lamp system take control dimming circuit A circuit for providing remote control at a plurality of locations for a lighting system, such control functions including on/off, dimming intensity and rate of dimming. Visual indication of take control is also provided....	03/13/1979
4134044	High frequency circuit for operating a high-intensity gaseous discharge lamp A high frequency drive circuit operating as a push-pull, Class C oscillator for driving a high-intensity, gaseous discharge lamp and avoiding the use of a relatively large ballast coil. A highly stable power supply for operating in conjunction with such c...	01/09/1979
4125267	Well packer including anti-extrusion washer A packer assembly for sealing against the wall of well pipe including a reverse beveled washer face adjacent a straight resilient packer face, thereby providing an internal gap for vertical extrusion when the packer is radially expanded and, hence, retard...	11/14/1978
4105215	Well packer including combination anti-extrusion and segment ring actuating washer A packer assembly for sealing against the wall of well pipe including a washer having reverse beveled and beveled faces. The reverse beveled face is adjacent to a straight resilient packer face, and the internal gap created thereby retards vertical extrus...	08/08/1978
4042817	Quasi-indirect monosymmetrical lighting system A perimeter lighting system using monosymmetrical quasi-indirect light fixtures recessed in the ceiling of a room, near the walls, to direct light toward the walls and thereby cause it to be reflected from them at optimum elevation for maximum overall lig...	08/16/1977

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Attorney: Vaden, III; Frank S.