Patents by Inventor Peter Lefferson
Peter Lefferson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100089329Abstract: A selective pet feeding system comprising a gas or air blowing device that discourages a pet that should not eat at that station by gently blowing a stream of gas or air at the face of said pet. The pets are identified through the commonly understood technology of Radio Frequency Identification (RFID) and where a RFID fob attached to their body programmed with a code that is read by the selective feeding station.Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventor: Peter Lefferson
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Patent number: 7500647Abstract: One of the greatest frustrations in the kitchen for a person with limited hand mobility is the task of holding the body of a jar while removing the lid. The present invention solves this problem by allowing the handicapped person's body to become the third hand and hold the bottle in a rigid grip. The new device clips over the front of any standard kitchen drawer and traps the jar between a V shaped vertical support and the front of the counter top. The jar is held rigid when the user presses their body against the drawer. Now both hands are free to remove the jar lid by any common means.Type: GrantFiled: November 29, 2006Date of Patent: March 10, 2009Inventors: Peter Lefferson, Kathleen Langan Lefferson
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Publication number: 20080316027Abstract: A security alarm blanket can be placed over an object that is to be guarded. If someone approaches the blanket an audio, visual, and/or electronic alarm is sent. The blanket is made of a fabric with metal woven therein or a membrane material with a conductive surface and thus functions as the antenna for a proximity detector. The proximity detector may be activated from a remote controller allowing the operator the ability to prepare the object to be guarded and to deactivate the proximity detector without setting off the alarm.Type: ApplicationFiled: June 25, 2007Publication date: December 25, 2008Inventor: Peter Lefferson
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Publication number: 20070295876Abstract: One of the greatest frustrations in the kitchen for a person with limited hand mobility is the task of holding the body of a jar while removing the lid. The present invention solves this problem by allowing the handicapped person's body to become the third hand and hold the bottle in a rigid grip. The new device clips over the front of any standard kitchen drawer and traps the jar between a V shaped vertical support and the front of the counter top. The jar is held rigid when the user presses their body against the drawer. Now both hands are free to remove the jar lid by any common means.Type: ApplicationFiled: November 29, 2006Publication date: December 27, 2007Inventors: Peter Lefferson, Kathleen Langan Lefferson
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Patent number: 7267460Abstract: A night light appliance that when plugged into a standard wall electrical outlet provides a means to direct many beams of light to specific places in the room. Extending from the appliance body are bendable arms with bright light emitting diodes mounted at the end of each arm. The plastic body of each light emitting diode contains a lens that forms the light into a narrow beam. This night light is particularly suitable to a conventional bathroom where an electrical outlet is normally found high on the wall and near the sink. Unlike conventional night lights that illuminate the area near the outlet, these light beams can be directed to appropriate places like the doorway, sink, and toilet. It is also useful in a hallway by directing light beams down the length of the hall rather than lighting the area around the electrical plug.Type: GrantFiled: May 2, 2005Date of Patent: September 11, 2007Inventor: Peter Lefferson
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Publication number: 20060269898Abstract: A dental light source brilliantly illuminates a dental patient's mouth by residing inside the mouth in place of or in addition to the conventional dental lamp. In the present art the conventional dental lamp is positioned in front of the patient's mouth and behind the dental practitioner's head. This dental lamp must be often adjusted by the dental practitioner in order to see particular parts of the patient's mouth. The dental practitioner's head and hands often block the light path. Earlier solutions to this problem have combined a light source and a dental mirror but these products were both very expensive and had cumbersome attached wires or fiber optic cables. These problems are cured by this new unique dental light source that may be temporarily clamped to a few teeth or be freely placed at any mouth location to brightly illuminate the rest of the mouth.Type: ApplicationFiled: May 25, 2006Publication date: November 30, 2006Inventor: Peter Lefferson
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Publication number: 20050243563Abstract: A night light appliance that when plugged into a standard wall electrical outlet provides a means to direct many beams of light to specific places in the room. Extending from the appliance body are bendable arms with bright light emitting diodes mounted at the end of each arm. The plastic body of each light emitting diode contains a lens that forms the light into a narrow beam. This night light is particularly suitable to a conventional bathroom where an electrical outlet is normally found high on the wall and near the sink. Unlike conventional night lights that illuminate the area near the outlet, these light beams can be directed to appropriate places like the doorway, sink, and toilet. It is also useful in a hallway by directing light beams down the length of the hall rather than lighting the area around the electrical plug.Type: ApplicationFiled: May 2, 2005Publication date: November 3, 2005Inventor: Peter Lefferson
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Patent number: 6955448Abstract: A low profile night light adapted to be positioned in a substantially level plane atop a floor has cylindrical sidewalls and apertures formed in the sidewalls at regularly spaced intervals. At least one light source such as an incandescent or fluorescent light or a light-emitting diode is positioned in registration with at least one of the apertures so that the at least one light source illuminates a fan-shaped area of a floor. A circular area is illuminated if a light source is placed into registration with each aperture. The night light may be positioned under a bed or other item of furniture and may be battery operated or connected to a wall outlet by an elongate power cord. Unlike a conventional night light that illuminates only an area near an electrical wall outlet, the novel night light can be positioned anywhere on a floor where a tripping hazard might exist.Type: GrantFiled: October 22, 2004Date of Patent: October 18, 2005Inventor: Peter Lefferson
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Patent number: 5959533Abstract: A body worn transmitter and its associated portable monitoring receiver receiving global position signals, is provided with tamper detection to support twenty-four hour violation reporting from a subject under community supervision moves about the community. The body worn transmitter incorporates active radio frequency sensors to determine if the body worn transmitter has either been removed from the subject's body or the attachment strap has experienced tampering for the purpose of removal from the subject's body. A signal from the body worn transmitter is encrypted in order to prevent recording and retransmission of the body worn transmitter signal to an associated portable monitoring receiver for the purposes of masking body worn transmitter tampering or to make the body worn transmitter falsely appear in a different location. The body worn transmitter can be immersed in electrolyte solutions without generating a false tamper signal.Type: GrantFiled: May 27, 1997Date of Patent: September 28, 1999Assignee: Pro Tech Monitoring, Inc.Inventors: Hoyt M. Layson, Jr., David S. Segal, Peter Lefferson
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Patent number: 4484141Abstract: A device for detecting the isoelectric end point in an isoelectric focusing system by electronically integrating, over successive time intervals, a characteristic of the electrical input to said zone as it varies with the increasing resistance of the zone. Most conveniently, the measured characteristic is the current through the zone which, under constant impressed voltage or power, asymptotically approaches a minimum value as the end point is reached.The measured characteristic is continually converted to a sequence of pulses indicative of the value of the characteristic. The end point is indicated when the difference between counts of these pulses over successive time intervals reaches a preselected value. At the end point, provision is made for replacement of the focusing voltage with a lower voltage to keep the ampholytes focused. A signal can be activated at the end point.Type: GrantFiled: November 12, 1982Date of Patent: November 20, 1984Assignee: FMC CorporationInventors: Richard B. Cook, Calvin A. Saravis, Peter Lefferson
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Patent number: 3985467Abstract: A controller maintains a constant desired fluid pressure in a fluid load driven by a variable flow fluid pump with a variable speed motor. A set point signal representing desired pressure and a signal from a pressure transducer representing actual pressure are applied to an error amplifier. The resulting error signal is applied through a variable gain stage to the motor control. The variable gain stage includes first and second variable gain amplifiers the first of which has a gain which is controlled inversely to pressure. The second variable gain amplifier has a gain which is controlled in proportion to flow. In this manner, the gain of the controller changes in inverse proportion to the restriction of the fluid load. This makes the performance of the controller independent of changes in the fluid load by keeping the total loop gain constant.Type: GrantFiled: May 27, 1975Date of Patent: October 12, 1976Assignee: Milton Roy CompanyInventor: Peter Lefferson
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Patent number: D928944Type: GrantFiled: September 19, 2017Date of Patent: August 24, 2021Inventor: Peter Lefferson