Patents by Inventor A. Kenneth Johnson
A. Kenneth Johnson 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: 20020072625Abstract: The present invention relates to chelate-fluorophore conjugates and their use in monitoring binding reactions between a chelate and a macromolecular biological binding agent, such as an antibody. Such monitoring is used both to identify anti-chelate antibodies that have a desired metal selectivity and to configure immunoassays that provide a means of detecting and quantitating a given metal ion.Type: ApplicationFiled: December 9, 2000Publication date: June 13, 2002Inventor: David Kenneth Johnson
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Patent number: 6391397Abstract: A fluorinated phenyl compound having the general formula [1]: wherein each of s, v and x=0 or 1, each of t and u=1, 2 or 3, and each of y and z=0, 1 or 2; A, B and C are independently selected from conjugated cyclic moieties including heterorings and fused rings; R1 and R3 may be independently cyano, or (C1-C12)alkyl, (C1-C12)alkoxy, (C1-C11) alkoxycarbonyl or (C1-C11)alkylcarbonyloxy which may be fluoro- and/or cyano-substituted; R2=H or F; R4=H or F; and R5=H or F. Such compounds have high transverse dipole moments and are potentially useful in liquid crystal compositions and in devices including same.Type: GrantFiled: April 5, 2000Date of Patent: May 21, 2002Assignees: Sharp Kabushiki Kaisha, The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: John Clifford Jones, Ian Charles Sage, John William Goodby, Michael Hird, Robert Andrew Lewis, Kenneth Johnson Toyne
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Publication number: 20020011588Abstract: A liquid crystalline compounds:Type: ApplicationFiled: August 2, 2001Publication date: January 31, 2002Inventors: Kenneth Johnson Toyne, John William Goodby, Alexander Seed, George William Gray, Damien Gerad McDonnel, Edward Peter Raynes, Sally Elizabeth Day, Kenneth John Harrison, Michael Hird
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Publication number: 20020012897Abstract: A method and device using stress waves for dental examination. According to the method, the dental structure (such as a tooth) under examination is subjected to a stress (acoustic) wave. The stress wave propagates through the dental structure and is received on the other side. From the analysis of the transmission time and/or the resulting waveform, diagnostic information results as to the presence of dental disease such as dental caries that may be present on the tooth surface under dental restorations such as fillings or metal crowns. According to the invention, the stress wave is generated by a suitable transducer, coupled to the dental structure through a transmission medium, propagates through the dental structure, coupled through another transmission medium, received by a acousto-electric transducer, and analyzed by suitable electronic means.Type: ApplicationFiled: July 18, 2001Publication date: January 31, 2002Inventors: Daniel A. Tingley, Kenneth Johnson
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Patent number: 6291034Abstract: Liquid crystal compounds of formula (I) are described, where formula (I) is given as R1—A—(X)m—(B)n—R2 where A is selected from naphthyl, fluorinated naphthyl, brominated naphthyl, B is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine. R1 and R2 are independently selected from alkyl, alkoxy, akynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, X is selected from C≡C, COO and C≡C, m is 0 or 1, n is 0 or 1 where m is 1 and n is 0 where m is 0; provided that where A is naphthyl, n is 1 and m is 0 then B is selected from methylated phenyl, brominated phenyl, thiophene, pyrimidine and pyridine; and further provided that where A is naphthyl, X is C≡C, m is 1 and n is 1, then B is selected from thiophene, pyrimidine and pyridine.Type: GrantFiled: September 10, 1998Date of Patent: September 18, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Kenneth Johnson Toyne, John William Goodby, Alexander Seed, George William Gray, Damien Gerad McDonnel, Edward Peter Raynes, Sally Elizabeth Day, Kenneth John Harrison, Michael Hird
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Patent number: 6255589Abstract: The current feedthrough is more particularly intended to provide connection to a bare conductor of a piece of gear housed inside metal cladding including a wall provided with an opening designed to put a conductive element of the gear into connection with one end of a conductive element housed axially inside the feedthrough. It includes a metal link and screen piece of cylindrical appearance that is held coaxially about the conductive element by a body of molded insulating material covering it in part and forming a plug that is impermeable to gas. The link and screen piece is terminated by a cylindrical portion projecting from the body, with the piece being welded to the periphery of the opening via the end of its cylindrical portion.Type: GrantFiled: December 17, 1999Date of Patent: July 3, 2001Assignee: AlstomInventors: Thierry Starck, Kenneth Johnson
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Patent number: 6121448Abstract: The synthesis of novel compound (I) is described: 5-bromo-2-iodopyrimidine may be used for the synthesis of a range of chemical compounds both known and novel. The synthesis of a number of novel liquid crystalline compounds is described.Type: GrantFiled: June 16, 1999Date of Patent: September 19, 2000Assignee: The Secretary of State for Defence in Her Brittanic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Robert Andrews Lewis, John William Goodby, Kenneth Johnson Toyne, Michael Hird
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Patent number: 6120489Abstract: A flangeless seam especially useful in disposable articles, such as training pants, incontinence articles and the like. The first member preferably has a first proximal portion and a first distal portion. The first distal portion is preferably folded upon at least a portion of the first proximal portion to provide a common interface between the first distal portion and the first proximal portion when the seam is in the seaming configuration. The first proximal portion preferably has a first melting point and the first distal portion preferably has a second melting point which is relatively lower than the first melting point. The seam also includes a second member preferably having a second proximal portion and a second distal portion. The second member preferably has a third melting point which is lower than the first melting point.Type: GrantFiled: May 15, 1997Date of Patent: September 19, 2000Assignee: The Procter & Gamble CompanyInventors: Larry Kenneth Johnson, Stephen Joseph Lange, David Michael Weirich
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Patent number: 6042673Abstract: A method of making a flangeless seam for a disposable article including the following steps: A first member of the disposable article is provided. A conductive member is provided on the first member. The first member is folded about the conductive member providing opposing first proximal and first distal portions of the first member, the conductive member being disposed at least partially between the opposing first proximal and first distal portions. A second member of the disposable article is provided in a folded configuration juxtaposed at least a portion of the first member to form a laminate including the first member and the second member. An electromagnetic field is applied across at least a portion of the laminate to heat the conductive member to a temperature which joins at least a portion of the first member and at least a portion of the second member. The resulting seam can be opened to provide the article with a flangeless seam.Type: GrantFiled: March 4, 1998Date of Patent: March 28, 2000Assignee: The Procter & Gamble CompanyInventors: Larry Kenneth Johnson, Stephen Joseph Lange
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Patent number: 5986096Abstract: 5-Bromo-2-iodopyrimidine is used to synthesize a range of chemical compounds including liquid crystalline compounds.Type: GrantFiled: September 25, 1997Date of Patent: November 16, 1999Assignee: The Secretary of State for Defence in Her Britannic Majesty's a Government of the U.K. of Gt. Britain & N. Ireland of Defence Evaluation & Research AgencyInventors: Robert Andrews Lewis, John William Goodby, Kenneth Johnson Toyne, Michael Hird
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Patent number: 5975379Abstract: A dispense head assembly includes a bung adapter, a body receiver, and a dispensing body. The bung adapter inserts into a drum. The body receiver selectively inserts into the bung adapter, and the dispensing body selectively inserts into the body receiver. A single, unobstructed, uniform-diameter flowpath routes fluid from the drum into a chamber within the body receiver. A movable piston within the chamber selectively blocks fluid flow between the fluid flowpath and a dispense opening on the dispensing body. The body receiver and the dispensing body are key matched, for safe and rapid coupling and decoupling.Type: GrantFiled: November 20, 1998Date of Patent: November 2, 1999Inventor: Kenneth A. Johnson
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Patent number: 5955000Abstract: This invention describes compounds of formula (I) ##STR1## wherein R is C.sub.1-16 alkyl or alkoxy; X is selected from F and Cl and indicates that one or more of the phenyl rings may be laterally substituted; x is selected from 0-3; A and B are independently selected from CO.sub.2, OCO, .tbd.C and single bond; R.sub.1 and R.sub.2 are independently selected from H and C.sub.1-16 alkyl provided that R.sub.1 and R.sub.2 are different; n is 0 or 1 provided that if n is zero then B is single bond. These compounds may be used as dopants suitable for use in ferroelectric liquid crystal mixtures.Type: GrantFiled: September 25, 1997Date of Patent: September 21, 1999Assignee: The Secretary of State for DefenceInventors: Benjamin Ross Carrick, John William Goodby, Kenneth Johnson Toyne, Michael Hird, Damien Gerard McDonnell
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Patent number: 5926002Abstract: The application describes a control pendant for controlling a multi-segment patient table to assume a variety of different positions or configurations. The pendant has safety features including automatic shutoff of power to the keys under selected conditions and backlighting of the keys when power is being supplied (e.g., when keys are operational) to provide improved visibility in low-light environments. The control pendant further has an ergonomically effective shape and key board layout. An icon representing the table and its segments is located on the keyboard, and the keyswitches are arranged with respect to the icon to facilitate rapid and accurate visual identification of keys which operate particular table segments.Type: GrantFiled: February 21, 1995Date of Patent: July 20, 1999Assignee: Getinge/Castle, Inc.Inventors: Matthew R. Cavanaugh, Kenneth A. Johnson
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Patent number: 5888421Type: GrantFiled: September 19, 1994Date of Patent: March 30, 1999Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Kenneth Johnson Toyne, John William Goodby, Alexander Seed, George William Gray, Damien Gerad McDonnel, Edward Peter Raynes, Sally Elizabeth Day, Kenneth John Harrison, Michael Hird
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Patent number: 5878924Abstract: A dispense head assembly includes a bung adapter, a body receiver, and a dispensing body. The bung adapter inserts into a drum. The body receiver selectively inserts into the bung adapter, and the dispensing body selectively inserts into the body receiver. A single, unobstructed, uniform-diameter flowpath routes fluid from the drum into a chamber within the body receiver. A movable piston within the chamber selectively blocks fluid flow between the fluid flowpath and a dispense opening on the dispensing body. The body receiver and the dispensing body are key matched, for safe and rapid coupling and decoupling.Type: GrantFiled: July 28, 1997Date of Patent: March 9, 1999Assignee: Chemand CorporationInventor: Kenneth A. Johnson
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Patent number: 5853613Abstract: The present invention describes liquid crystal compounds which are suitable for use in liquid crystal devices including those which exploit the electroclinic effect.Type: GrantFiled: January 16, 1997Date of Patent: December 29, 1998Assignee: Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: John William Goodby, Kenneth Johnson Toyne, Michael Hird, Stephen John Lock
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Patent number: 5820781Abstract: R.sub.1 --A--(X).sub.m --(B).sub.n --R.sub.2 (I)R.sub.3 --J--(Y).sub.p --(Z).sub.q --R.sub.4 (II)Liquid crystal compounds of formula (I) are described, where formula (I) is given as R.sub.1 --A--(X).sub.m --(B).sub.n --R.sub.2 where A is selected from nathyl, fluorinated naphthyl, brominated naphthyl, B is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, X is selected from C.tbd.C, COO and C.tbd.C, m is 0 or 1, n is 0 or 1 where m is 1 and n is 0 where m is 0; provided that where A is naphthyl, n is 1 and m is 0 then B is selected from methylated phenyl, brominated phenyl, thiophene, pyrimidine and pyridine; and further provided that where A is naphthyl, X is C.tbd.C, m is 1 and n is 1, then B is selected from thiophene, pyrimidine and pyridine.Type: GrantFiled: June 6, 1995Date of Patent: October 13, 1998Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain & Northern IrelandInventors: Kenneth Johnson Toyne, John William Goodby, Alexander Seed, George William Gray, Damien Gerad McDonnel, Edward Peter Raynes, Sally Elizabeth Day, Kenneth John Harrison, Michael Hird
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Patent number: 5798058Abstract: Compounds of formula (I) which are suitable for use in liquid crystal devices including those devices which exploit the electroclinic effect. The compounds of formula (I) may also be used as chiral dopoants suitable for use with ferroelectric liquid crystals or they may be used as chiral nematic dopants.Type: GrantFiled: December 31, 1996Date of Patent: August 25, 1998Assignee: Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Gt. Britain & N. Ireland of Defence Evaluation and Research AgencyInventors: John William Goodby, Kenneth Johnson Toyne, Michael Hird, Robert Andrew Lewis
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Patent number: 5662638Abstract: A flangeless seam especially useful in disposable articles, such as training pants, incontinence articles and the like. The flangeless seam preferably comprises a first member and a second member; at least a portion of the second member overlaps at least a portion of the first member. The flangeless seam preferably further comprises a barrier member disposed between at least a portion of the overlapping portions of the first member and the second member forming a laminate having a seam area. A joining means is preferably disposed in at least a portion of the seam area joining at least a portion of the first member to at least a portion of the second member, the barrier member preventing at least a portion of the first member from becoming joined with at least a portion of the second member.Type: GrantFiled: October 10, 1995Date of Patent: September 2, 1997Assignee: The Procter & Gamble CompanyInventors: Larry Kenneth Johnson, Stephen Joseph Lange
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Patent number: 5390322Abstract: Apparatus and methods for providing memory backup of sterilizer cycle progress in a sterilizer control apparatus are disclosed. The control apparatus includes a microprocessor operable to detect a drop or failure in power from the external source, a RAM for temporary storage of data from the microprocessor, and a clock chip. The clock chip and the RAM receive their power from a backup voltage source which is normally charged by the external power source. The clock chip includes a bit which can be set by receipt of an input signal.A comparator circuit is connected to compare the backup voltage VBAK to the minimum power required for accurately retaining memory in the RAM. When VBAK falls below the minimum required power, the comparator sends a signal to the clock chip to set the bit. After power is restored, the microprocessor checks the bit in the clock, and, if the bit is not set, continues operating the sterilizing cycle from the point at which it was interrupted by the power failure.Type: GrantFiled: February 1, 1991Date of Patent: February 14, 1995Inventors: Michael J. O'Brien, Charles E. Ellis, Kenneth A. Johnson