Patents by Inventor Alan W Hall
Alan W Hall 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: 20240102779Abstract: A two-piece firearm projectile includes a jacket and a penetrator. The proximal end portion of the penetrator is received in and mates with a corresponding recess defined in the inside surface of the jacket. A three-piece projectile includes a jacket, a slug, and a penetrator. The slug and at least part of the penetrator are encased by the jacket, where the slug is positioned between the base of the jacket and the proximal end of the penetrator. The proximal end of the penetrator overlaps axially and mates with the distal end of the slug. In one example, a frustoconical end of the penetrator is received in and mates with a frustoconical recess in the distal end of the slug or the jacket as the case may be.Type: ApplicationFiled: September 25, 2023Publication date: March 28, 2024Applicant: Sig Sauer, Inc.Inventors: Alan J. Corzine, Johnathon M. Hall, Shawn W. Baxter
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Patent number: 7767229Abstract: A poly(diallylamine)polymer pharmaceutical composition or pharmaceutical derivate used to sequester bile acid and/or to reduce serum cholesterol levels. The polymer is derived from a monomer of formula Ia, where R6 is a bridging group of valency r, and r is an integer of 3 or greater to provide a cross linked polymer, and all diallyl nitrogen atoms are linked to at least two further diallyl nitrogen atoms.Type: GrantFiled: November 10, 2000Date of Patent: August 3, 2010Inventors: Paul E Milne, John W Goodby, Alan W. Hall, Keith M Blackwood
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Patent number: 7651543Abstract: A planar omni-directional inlet assembly is provided for installing on a device, such as a dry filter unit, that draws a fluid medium, such as ambient air, to collect particulate matter suspended in the fluid medium onto a filter. The inlet assembly includes an annular platform removably positionable on the device; an annular nozzle to direct the air from the platform; an annular impactor disposed downstream of the nozzle; a housing that disposes the filter downstream of the impactor; and an exit for passing the air from the filter to the device. The impactor presents a flow obstacle for a portion of the particulate matter. The housing directs the air through the filter. The housing includes a base with a first cavity and a lid with a second cavity such that the filter is disposable between the first and second cavities.Type: GrantFiled: June 26, 2006Date of Patent: January 26, 2010Assignee: The United States of America as represented by the Secretary of the NavyInventors: Virgil A. Marple, Bernard A. Olson, Alan W. Hall, Edward A. Lustig, Jr.
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Patent number: 7026419Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerisation initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: GrantFiled: December 11, 2003Date of Patent: April 11, 2006Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Alan W Hall, John W Goodby
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Patent number: 6951700Abstract: The use of a compound of formula (A), which comprises a group of sub-formula (I) where R1, R2, R3, R4, R5, R6, X1 and Y1 are various specified organic groups wherein at least one of said groups has sufficient electron whitdrawing properties to activate the multiple bonds to polymerisation, in a stereolithographic composition. Stereolithographic applications of these compounds are also described and claimed.Type: GrantFiled: November 30, 2000Date of Patent: October 4, 2005Assignee: Qinetiq LimitedInventors: John W Goodby, Alan W Hall, Keith M Blackwood, Paul E Y Milne, Andrew G Biggs, Ryan M Heath, Robert W Bannister
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Publication number: 20040127664Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerisation initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: ApplicationFiled: December 11, 2003Publication date: July 1, 2004Applicant: Qinetiq LimitedInventors: Paul E. Milne, Keith M. Blackwood, Alan W. Hall, John W. Goodby
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Patent number: 6703467Abstract: An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R1 and R6 or (b) R2 and R3 or (c) R4 and R5 includes an electron withdrawing group; and where necessary, a polymerization initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.Type: GrantFiled: January 3, 2001Date of Patent: March 9, 2004Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Alan W Hall, John W Goodby
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Patent number: 6653499Abstract: Compounds of formula (I) may be used as alignment layers in liquid crystal devices wherein X1-5 are idependently selected from H, F, CN, phenylene, C1-10 alkyl, whereby when X1=X2, then X1,2=H and when X3=X4, then X3,4=H, S1-3 are spacer units, PG1-3 are photoisomerisable/dimerisable groups.Type: GrantFiled: June 7, 2001Date of Patent: November 25, 2003Assignee: Qinetiq LimitedInventors: Alan W Hall, Stephen M Kelly, Gareth J Owen, Ridvan Karapinar, Mary O'Neill
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Publication number: 20030157435Abstract: The use of a compound of formula (A), which comprises a group of sub-formula (I) where R1, R2, R3, R4, R5, R6, X1 and Y1 are various specified organic groups wherein at least one of said groups has sufficient electron whitdrawing properties to activate the multiple bonds to polymerisation, in a stereolithographic composition. Stereolithographic applications of these compounds are also described and claimed.Type: ApplicationFiled: November 6, 2002Publication date: August 21, 2003Inventors: John W Goodby, Alan W Hall, Keith M Blackwood, Paul E Y Milne, Andrew G Biggs, Ryan M Heath, Robert W Bannister
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Patent number: 6608120Abstract: Compounds of the formula: having two double bonds which are activated so that they will take part in a polymerization reaction, the double bonds being sufficiently close together to ensure that cyclopolymerization will preferentially occur. These compounds are used as monomers which preferentially are cyclopolymerized under the influence of ultraviolet or thermal radiation in the production of network polymers, for example coatings or binders.Type: GrantFiled: January 17, 2001Date of Patent: August 19, 2003Assignee: Qinetiq LimitedInventors: Paul E Milne, Keith M Blackwood, Steven M Kelly, Alan W Hall, John W Goodby
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Patent number: 6511612Abstract: Compounds of the formula: where X3 is: other variables are defined in the description, and the rectangular box is a mesogenic group, are used in a variety of devices including liquid crystal devices piezoelectric, pyroelectric devices and in optical recording media.Type: GrantFiled: January 4, 2001Date of Patent: January 28, 2003Assignee: Qinetiq LimitedInventors: Alan W Hall, David Lacey
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Patent number: 6180024Abstract: Methods, based on the Wittig-Horner reaction, are provided for the synthesis of compounds of formula (I) where m is from 5-150, X and Y are independently selected from: CN, H, OH, COCH3, CO2H, CO2H, CO2R1, where R1 is C1-12 alkyl, NCS, SCN, CF3, CH2X where X is F, Cl, Br, OH, CHF2 and formula (IB), where J for each X and Y group is independently selected from: CH2, single covalent bond, OOC, CO2, O, CH2O, OCH2, CH2CO2, CH2OOC; p=1-20; L for each X and Y group is independently selected from: O, CH2OCO, CO2, S, NH; (a) is defined by formula (IC), where rings A, B and C are independently selected from phenyl, cyclohexyl, pyridine and pyrimidine and may be independently of each other substituted with at least one of Cl or F; linking groups A and B may be selected from single bond, CO2, OOC, CH2O, OCH2, CH2CH2, C≡C; Z is selected from CN, F, Cl, NO2, R, OR, CO2R, CF3, OOCR, NCS, SCN, where R=straight chain or branched chain alkyl and may include from 1-16 carbon atoms and inclType: GrantFiled: February 26, 1999Date of Patent: January 30, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Keith M Blackwood, Michelle Jones, David Lacey, Alan W Hall, Kenneth J Toyne, Steven Pringle
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Patent number: 6030668Abstract: Compounds of formula ##STR1## are provided which may be used in a variety of devices including liquid crystal devices, piezoelectric devices, pyroelectric devices and in optical recording media, where m=at least 5; and R.sub.x, R.sub.y and R.sub.z are independently from formula (IA), ##STR2## where Y is selected from COO, OCO, O, S, CHOH, CHF, CH.sub.2 ; Q=(CH.sub.2).sub.n wherein one or more non-adjacent methylenes may be replaced by O and n=1-20; Z is selected from O, S, a single covalent bond, COO, a OCO; when Y is CH.sub.2 then n may also be 0; formula (IB) is ##STR3## and represents any mesogenic group; and R.sub.x, R.sub.y and R.sub.z are also independently selected from H, OH, OCOR.sup.1, COOH, CO.sub.2 R.sup.1 (CH.sub.2).sub.p OH, (CH.sub.2).sub.p CO.sub.2 H, --(CH.sub.2).sub.p OR.sup.1 or --(CH.sub.2).sub.p CO.sub.2 R.sup.1 and p=1-20, R.sup.1 =H or C.sub.1-16 alkyl, when R.sup.1 =C.sub.2-16 alkyl the terminal CH.sub.3 group may be replaced by Br or Cl; provided that at least one of and R.sub.x, R.Type: GrantFiled: May 26, 1998Date of Patent: February 29, 2000Assignee: The Secretary of State for Defence, in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Alan W Hall, David Lacey, Ian C Sage, Keith M Blackwood, Michelle Jones
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Patent number: 5676878Abstract: A liquid crystal polymer or copolymer is disclosed of structure (A) where X=CN, COR, CO.sub.2 R, CHO, CF.sub.3 ; R=branched chain, straight chain or chiral alkyl; .rect-hollow.=any suitable mesogenic group; Z=single covalent bond, oxygen, sulfur, CO.sub.2 or OCO; n=1 to 20; Y=H, OH, F, OCH.sub.3 ; m=3 to 200; P=a single covalent bond, oxygen, or OCO.Type: GrantFiled: October 5, 1995Date of Patent: October 14, 1997Assignees: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland, Evaluation Research Agency, DRAInventors: David Lacey, Alan W. Hall, Jonathan S. Hill, Damien G. McDonnell