Patents by Inventor Robert Keys
Robert Keys 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: 20240113649Abstract: A power tool includes a motor, a speed sensor configured to sense a speed of the motor, and a controller connected to the motor and the speed sensor. The controller is configured to provide power to the motor, determine a first command based on the speed of the motor, determine, while in a first operating mode, whether the first command is greater than or equal to a first limit, determine, while in the first operating mode, a PWM duty cycle ratio based on the first limit, determine, while in a second operating mode, whether a parameter command is greater than or equal to a parameter limit, while in the second operating mode and when the parameter command is greater than or equal to the parameter limit, the PWM duty cycle ratio based on the parameter limit, and drive the motor based on the PWM duty cycle ratio.Type: ApplicationFiled: September 26, 2023Publication date: April 4, 2024Inventors: Austin Gaspar, Robert Keys, Bradley A. Seymour
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Publication number: 20230381938Abstract: Systems and methods for implementing an electronic clutch in a powered fastener driver. One fastener driver includes a motor, a trigger, a position sensor, a speed sensor, and a controller. The position sensor is configured to sense a position of the lifting assembly. The speed sensor is configured to sense a speed of the motor. The controller is configured to provide power to the motor. The controller is configured to receive speed signals from the speed sensor indicative of the speed of the motor, and determine whether the speed of the motor has dropped by a speed drop threshold within a first period of time. The controller is configured to activate an electronic clutch to electronically brake the motor for a second period of time. In response to the second period of time having passed, the controller is configured to provide power to the motor.Type: ApplicationFiled: May 17, 2023Publication date: November 30, 2023Inventors: Arik A. Miller, Jonathon N. Gasteiner, Mitchell A. Ellena, Austin Gaspar, Robert Keys
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Publication number: 20230321810Abstract: Systems and methods for electronically limiting torque in a power tool. One power tool includes a motor, a trigger, and a controller connected to the trigger and the motor. The controller is configured to provide, in response to actuation of the trigger, power to the motor, determine a speed of the motor, activate the electronic clutch, in response to determining that the speed of the motor has dropped by the speed drop threshold within the first period of time, to electronically brake the motor for a second period of time, and provide, in response to the second period of time having passed, power to the motor.Type: ApplicationFiled: March 20, 2023Publication date: October 12, 2023Inventors: Austin Gaspar, Robert Keys
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Patent number: 11730321Abstract: A bathtub cleaner assembly includes a cleaner that has a handle portion extending upwardly from a reservoir portion that contains a fluid cleaning solution. A first scrubbing unit is coupled to the reservoir portion of the cleaner to engage a basal wall of the bathtub when the cleaner is positioned in the bathtub. The first scrubbing unit rotates when the first scrubbing unit is turned on to scrub the basal wall of the bathtub. A pair of second scrubbing units is each movably integrated into the reservoir portion of the cleaner to scrub a respective lateral wall of the bathtub when the cleaner is positioned in the bathtub. A spray unit is integrated into the cleaner to spray the fluid cleaning solution onto the first scrubbing unit and the second scrubbing units.Type: GrantFiled: April 28, 2021Date of Patent: August 22, 2023Inventor: Javern Robert Key
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Publication number: 20220346604Abstract: A bathtub cleaner assembly includes a cleaner that has a handle portion extending upwardly from a reservoir portion that contains a fluid cleaning solution. A first scrubbing unit is coupled to the reservoir portion of the cleaner to engage a basal wall of the bathtub when the cleaner is positioned in the bathtub. The first scrubbing unit rotates when the first scrubbing unit is turned on to scrub the basal wall of the bathtub. A pair of second scrubbing units is each movably integrated into the reservoir portion of the cleaner to scrub a respective lateral wall of the bathtub when the cleaner is positioned in the bathtub. A spray unit is integrated into the cleaner to spray the fluid cleaning solution onto the first scrubbing unit and the second scrubbing units.Type: ApplicationFiled: April 28, 2021Publication date: November 3, 2022Inventor: Javern Robert Key
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Patent number: 9092631Abstract: Computer-implemented security evaluation methods, security evaluation systems, and articles of manufacture are described. According to one aspect, a computer-implemented security evaluation method includes accessing information regarding a physical architecture and a cyber architecture of a facility, building a model of the facility comprising a plurality of physical areas of the physical architecture, a plurality of cyber areas of the cyber architecture, and a plurality of pathways between the physical areas and the cyber areas, identifying a target within the facility, executing the model a plurality of times to simulate a plurality of attacks against the target by an adversary traversing at least one of the areas in the physical domain and at least one of the areas in the cyber domain, and using results of the executing, providing information regarding a security risk of the facility with respect to the target.Type: GrantFiled: October 16, 2013Date of Patent: July 28, 2015Assignee: Battelle Memorial InstituteInventors: George Muller, Casey J. Perkins, Mary J. Lancaster, Douglas G. MacDonald, Samuel L. Clements, William J. Hutton, Scott W. Patrick, Bradley Robert Key
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Publication number: 20150106941Abstract: Computer-implemented security evaluation methods, security evaluation systems, and articles of manufacture are described. According to one aspect, a computer-implemented security evaluation method includes accessing information regarding a physical architecture and a cyber architecture of a facility, building a model of the facility comprising a plurality of physical areas of the physical architecture, a plurality of cyber areas of the cyber architecture, and a plurality of pathways between the physical areas and the cyber areas, identifying a target within the facility, executing the model a plurality of times to simulate a plurality of attacks against the target by an adversary traversing at least one of the areas in the physical domain and at least one of the areas in the cyber domain, and using results of the executing, providing information regarding a security risk of the facility with respect to the target.Type: ApplicationFiled: October 16, 2013Publication date: April 16, 2015Applicant: Battelle Memorial InstituteInventors: George Muller, Casey J. Perkins, Mary J. Lancaster, Douglas G. MacDonald, Samuel L. Clements, William J. Hutton, Scott W. Patrick, Bradley Robert Key
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Patent number: 8971706Abstract: Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.Type: GrantFiled: September 30, 2002Date of Patent: March 3, 2015Assignee: Rockstar Consortium US LPInventors: Ornan A. Gerstel, Humair Raza, Rajiv Ramaswami, Babu O. Narayanan, Robert Ward, Robert Keys, David Park, Vasant Sahay, Osama Aboul-Magd, Frederic Simard
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Patent number: 7826055Abstract: An optical analyzer (14) for performing spectral analysis on an optical beam (18) includes an optical filter (28), a mover (30), an optical launcher (36), and an optical receiver (38). The optical filter (28) includes a filter area (46) that is a narrow band pass type filter having multiple alternative center bandwidths that are distributed along the filter area (46). The mover (30) moves the optical filter (28). The first optical launcher (36) directs the optical beam (18) at the filter area (46) so that the optical beam (18) is near normal incidence to the filter area (46). The optical analyzer (14) can be used to simultaneously monitor multiple optical signals. Additionally, the optical analyzer (14) can include a beam redirector (40) that causes the optical beam (18) to make two passes through the optical filter (28).Type: GrantFiled: March 9, 2007Date of Patent: November 2, 2010Assignee: Oclaro Technology LimitedInventors: Mike Scobey, Robert Keys, Rad Sommer
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Publication number: 20090299638Abstract: Method for determining best and worst cases for values of model parameters such as porosity and shale volume fraction generated by non-unique matrix inversion of physical data such as seismic reflection amplitudes. The matrix is diagonalized, and then orthonormal basis vectors associated with insignificant diagonal elements are used to generate upper and lower bounds on the solution. Best and worst case solutions are determined as linear combinations of the null basis vectors, where the expansion coefficients are determined by making a best fit to the upper and lower bounds.Type: ApplicationFiled: June 26, 2006Publication date: December 3, 2009Inventors: Rebecca L. Saltzer, Christopher Finn, Robert Keys
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Publication number: 20080086287Abstract: Method for constructing an integrated rock physics model that simulates both shale anisotropy and stress-induced anisotropy of clastic rocks. In the model, the total pore volume is divided into three parts according to the estimated shale volume and effective stress: (1) clay-related pores, (2) sand-related pores, and (3) microcracks (mainly in the sand component). The pore space is then partitioned into the clay-related and sand-related pores using a scheme first disclosed by Xu and White in 1995. The model simulates shale anisotropy via the preferred orientation of clay-related pores and stress-induced anisotropy via the preferred orientation of microcracks, which is controlled by the differential stresses. Laboratory measurements or well logs are needed to establish a relationship between crack density and the effective stress.Type: ApplicationFiled: October 27, 2005Publication date: April 10, 2008Inventors: Shiyu Xu, Rebecca Saltzer, Robert Keys
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Publication number: 20070222994Abstract: An optical analyzer (14) for performing spectral analysis on an optical beam (18) includes an optical filter (28), a mover (30), an optical launcher (36), and an optical receiver (38). The optical filter (28) includes a filter area (46) that is a narrow band pass type filter having multiple alternative center bandwidths that are distributed along the filter area (46). The mover (30) moves the optical filter (28). The first optical launcher (36) directs the optical beam (18) at the filter area (46) so that the optical beam (18) is near normal incidence to the filter area (46). The optical analyzer (14) can be used to simultaneously monitor multiple optical signals. Additionally, the optical analyzer (14) can include a beam redirector (40) that causes the optical beam (18) to make two passes through the optical filter (28).Type: ApplicationFiled: March 9, 2007Publication date: September 27, 2007Inventors: Mike Scobey, Robert Keys, Rad Sommer
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Publication number: 20060063696Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided.Type: ApplicationFiled: November 14, 2005Publication date: March 23, 2006Inventors: Hugo Demeyere, Robert Keys, Jans-Jurgen Kohle, Johan De Poortere, Errol Wahl
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Publication number: 20050130874Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided.Type: ApplicationFiled: February 3, 2005Publication date: June 16, 2005Inventors: Hugo Demeyere, Robert Keys, Jans-Jurgen Kohle, Johan De Poortere, Errol Wahl
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Patent number: 6751414Abstract: To support interleaving of optical channels and to provide sufficient isolation between such interleaved channels, a circulator (60-62) receives, on an optical fiber (16-18), a broadband signal containing a plurality of adjacent channels. The circulator selectively routes the broadband signal through a filter (64, 66) to isolate, on an individual basis, at least one desired channel. A filtered signal, corresponding to the at least one desired channel, is then output from the filter (64-66) and reflected back into the filter by a mirror (68-70) such that the at least one desired channel is subjected to a second filtering process that further improves isolation of the at least one desired channel. Following this second filtering process, the at least one desired channel is applied to the circulator (60-62) for re-inserting into the optical fiber (16-18), as illustrated in FIG. 6.Type: GrantFiled: July 7, 1998Date of Patent: June 15, 2004Assignee: Nortel Networks LimitedInventors: Fiona Davies, Nigel Edward Jolley, Kevan Jones, Robert Keys, Maurice O'Sullivan
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Patent number: 6736713Abstract: A wafer carrier retaining ring includes a first annular surface that contacts a polishing surface during a polishing process and an inner diameter surface adjoining the first annular surface thereby forming a first annular corner. The first annular corner has a radius in the range of from no less than about 0.010 inches to less than a radius that would result in damage to a wafer being polished. In another embodiment of the invention, a wafer carrier retaining ring includes an inner diameter surface and a second annular surface adjoining said inner diameter surface thereby forming a second annular corner. The second annular corner has a radius of no less than 0.030 inches. In a further embodiment of the invention, a wafer carrier retaining ring is formed of a ceramic material and has a first annular surface having a surface finish of no greater than 2 microinches rms.Type: GrantFiled: August 7, 2001Date of Patent: May 18, 2004Assignee: SpeedFam-IPEC CorporationInventors: Wayne F. Lougher, Frank McPeek, Robert Key
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Publication number: 20040008988Abstract: Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.Type: ApplicationFiled: September 30, 2002Publication date: January 15, 2004Inventors: Ornan A. Gerstal, Humair Raza, Rajiv Ramaswami, Babu O. Narayanan, Robert Ward, Robert Keys, David Park, Vasant Sahay, Osama Aboul-Magd, Frederic Simard
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Publication number: 20020037693Abstract: A wafer carrier retaining ring includes a first annular surface that contacts a polishing surface during a polishing process and an inner diameter surface adjoining the first annular surface thereby forming a first annular corner. The first annular corner has a radius in the range of from no less than about 0.010 inches to less than a radius that would result in damage to a wafer being polished. In another embodiment of the invention, a wafer carrier retaining ring includes an inner diameter surface and a second annular surface adjoining said inner diameter surface thereby forming a second annular corner. The second annular corner has a radius of no less than 0.030 inches. In a further embodiment of the invention, a wafer carrier retaining ring is formed of a ceramic material and has a first annular surface having a surface finish of no greater than 2 microinches rms.Type: ApplicationFiled: August 7, 2001Publication date: March 28, 2002Inventors: Wayne F. Lougher, Frank McPeek, Robert Key
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Patent number: 6222668Abstract: A fast means of detecting that a fiber has been disconnected at one end of a bidirectional optical amplifier by monitoring for several signature effects simultaneously. Upon detection of a loss of signal, the pump laser in the corresponding direction is shut off quickly to prevent oscillation from occurring should the other end of the amplifier be subsequently disconnected.Type: GrantFiled: May 8, 1998Date of Patent: April 24, 2001Assignee: Nortel Networks LimitedInventors: Mathieu Dutrisac, Richard Achile Habel, Robert Keys, Franz Li Hsien Mok, Jeffrey Alan Weslowski
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Patent number: D685606Type: GrantFiled: May 18, 2012Date of Patent: July 9, 2013Assignee: Brita LPInventors: James Robert Keys, Brett David McIntire, Julia (Yi-Fong) Fu, Christopher Michael Wlezien, Michael Allen Harnack, Martin Rathgeber