Patents by Inventor David Chappell

David Chappell 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).

  • Publication number: 20230279282
    Abstract: The problem of lost circulation is pertinent to the oil industry. To prevent fluid loss, a lost circulation material (LCM), or more generally, a plugging material, can be used to effectively plug the fractures in the rock formation. If the fractures are in the production zone, it is also ideal to unplug them when the drilling operation is complete. Therefore, a material engineered to degrade after a desired period would be useful. In examples, a plugging material has been developed by gelling an oil-based fluid using a low molecular weight gelator, dibenzylidene sorbitol (DBS). DBS gels are robust and show plugging behavior. DBS is shown to chemically degrade in presence of an acid. Hence, a self-degrading gel can be synthesized by incorporating an acid into the system. Further, by varying the type and concentration of the acid, the degradation time of the gel can be controlled.
    Type: Application
    Filed: February 23, 2023
    Publication date: September 7, 2023
    Inventors: Faraz A. BURNI, Srinivasa R. RAGHAVAN, Joseph WEE, David CHAPPELL, Shanshan HUANG
  • Patent number: 10943570
    Abstract: A drum brush comprising a tube with slot, a plurality of wire bristles, a rod and O-ring, where the said bristles are at least partially within said tube in which portions of bristles extend outwardly from one end of tube, the end of casing from which the bristles extend is partially flattened to hold the bristles in position. The tube has a slot, its relative position is perpendicular and near to the end from which the bristles extend. A rod of a diameter such that when inserted into the said slot is held in position and adjustable in length by sliding in and out of the tube. The said O-ring is slid over the tube and rod, its function is used to adjust the height or relative distance of the said rod to that of the bristles.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: March 9, 2021
    Inventor: David Chappell Rundle
  • Patent number: 10555538
    Abstract: A scribe saw assembly is provided for a loin puller and has substantially reduced wear and increased life of the assembly components. A pinion assembly includes a double keyway and opposing cutouts on the pinion shaft, with dual needle bearings. A bevel gear assembly includes pins for holding the scribe saw blade and dual bearings on the bevel gear shaft to eliminate shaft flex and blade wear. The standard is mounted to the motor housing with load bearing pins to prevent loosening of the mounting bolts. An adjustable ski is provided on the standard to control the cutting depth of the scribe saw blade.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 11, 2020
    Assignee: Hall Fabrication, Inc.
    Inventor: David Chappell
  • Publication number: 20190350212
    Abstract: A scribe saw assembly is provided for a loin puller and has substantially reduced wear and increased life of the assembly components. A pinion assembly includes a double keyway and opposing cutouts on the pinion shaft, with dual needle bearings. A bevel gear assembly includes pins for holding the scribe saw blade and dual bearings on the bevel gear shaft to eliminate shaft flex and blade wear. The standard is mounted to the motor housing with load bearing pins to prevent loosening of the mounting bolts. An adjustable ski is provided on the standard to control the cutting depth of the scribe saw blade.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventor: David Chappell
  • Patent number: 10405558
    Abstract: A scribe saw assembly is provided for a loin puller and has substantially reduced wear and increased life of the assembly components. A pinion assembly includes a double keyway and opposing cutouts on the pinion shaft, with dual needle bearings. A bevel gear assembly includes pins for holding the scribe saw blade and dual bearings on the bevel gear shaft to eliminate shaft flex and blade wear. The standard is mounted to the motor housing with load bearing pins to prevent loosening of the mounting bolts. An adjustable ski is provided on the standard to control the cutting depth of the scribe saw blade.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: September 10, 2019
    Assignee: Hall Fabrication, Inc.
    Inventor: David Chappell
  • Publication number: 20170142985
    Abstract: A scribe saw assembly is provided for a loin puller and has substantially reduced wear and increased life of the assembly components. A pinion assembly includes a double keyway and opposing cutouts on the pinion shaft, with dual needle bearings. A bevel gear assembly includes pins for holding the scribe saw blade and dual bearings on the bevel gear shaft to eliminate shaft flex and blade wear. The standard is mounted to the motor housing with load bearing pins to prevent loosening of the mounting bolts. An adjustable ski is provided on the standard to control the cutting depth of the scribe saw blade.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Inventor: David Chappell, JR.
  • Publication number: 20150170620
    Abstract: A drum brush comprising a tube with slot, a plurality of wire bristles, a rod and O-ring, where the said bristles are at least partially within said tube in which portions of bristles extend outwardly from one end of tube, the end of casing from which the bristles extend is partially flattened to hold the bristles in position. The tube has a slot, its relative position is perpendicular and near to the end from which the bristles extend. A rod of a diameter such that when inserted into the said slot is held in position and adjustable in length by sliding in and out of the tube. The said O-ring is slid over the tube and rod, its function is used to adjust the height or relative distance of the said rod to that of the bristles.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 18, 2015
    Inventor: David Chappell Rundle
  • Publication number: 20150135933
    Abstract: A stick type drum stick is disclosed which includes a plurality of elongated reasonably straight wooden rods formed around a central dowel. The central dowel is comprised of a larger diameter sized wooden rod, the central dowel has two perpendicular slots cut into the horizontal plain starting at the end nearest to the playing or striking end. The plurality of rods having the same length as the central dowel are placed around the central dowel's outside diameter. A retaining sleeve is securely fitted over the gripping end creating a handle area. At the opposite end an additional retaining sleeve shorter in length is secured slightly back from the playing or striking end allowing some flexibility for the outer rods. The primary purpose of the slotted central dowel is to increase the rebound of the drum stick design. The result of combining these materials in this format produces the Rebound Multi-Rod Drumstick.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventor: David Chappell Rundle
  • Patent number: 8674204
    Abstract: A stick type drumstick is disclosed which includes a drumstick design featuring a hole drilled longitudinally at the striking end and an enlarged solid area positioned at the hole base. The purpose of the hole is to accommodate an insert of rods, nylon tube or a drumstick tip which when played produce different sounds. The purpose of the solid enlarged area is to provide a strong defined optional striking area, it can be struck harder to produce louder focused sounds assuring the stick area around the drilled hole is not struck and damaged which could compromise its ability to hold the insert. Striking with the area of the insert material provides additional sound possibilities. The result; combining these materials and features is a multi task drumstick. The combination of features utilized in this drumstick design cannot be found in the prior art of singular drumstick designs.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 18, 2014
    Inventor: David Chappell Rundle
  • Publication number: 20130239778
    Abstract: A stick type drumstick is disclosed which includes a drumstick design featuring a hole drilled longitudinally at the striking end and an enlarged solid area positioned at the hole base. The purpose of the hole is to accommodate an insert of rods, nylon tube or a drumstick tip which when played produce different sounds. The purpose of the solid enlarged area is to provide a strong defined optional striking area, it can be struck harder to produce louder focused sounds assuring the stick area around the drilled hole is not struck and damaged which could compromise its ability to hold the insert. Striking with the area of the insert material provides additional sound possibilities. The result; combining these materials and features is a multi task drumstick. The combination of features utilized in this drumstick design cannot be found in the prior art of singular drumstick designs.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 19, 2013
    Inventor: David Chappell Rundle
  • Patent number: 8516054
    Abstract: The disclosure includes a description of a method of handling messages received at a messaging system server. The method includes storing, in non-persistent storage, messages received from at least one client, removing delivered messages from the non-persistent storage, and saving messages stored in the non-persistent storage to persistent storage after a delay interval.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: August 20, 2013
    Assignee: Aurea Software, Inc.
    Inventors: William M. Cullen, David A Chappell
  • Publication number: 20090315570
    Abstract: A capacitive sensing device including a substrate, a sensor electrode disposed over the substrate, a first trace electrically coupled to the sensor electrode, and a second trace proximate the first trace. The second trace is for distinguishing proximity of an object with the sensor electrode from proximity of the object with the first trace.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Inventors: Mark Lynsin David Chappell, Bob Lee Mackey
  • Publication number: 20090084247
    Abstract: A stick type drum stick is disclosed which includes drum stick design featuring a hole drilled longitudinally in the playing striking end. The primary purpose is to accommodate a rod. The rod is inserted and glued into the hole of the tip. The rod can be cut to a desired length to suit its flex and resilient nature. Suitable material for the rod include nylon or delrin, PVC, ABS, polypropylene or polycarbonate. The result of combining these materials in this format produces a filter tip drum stick.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 2, 2009
    Inventor: David Chappell Rundle
  • Publication number: 20080168889
    Abstract: A stick type drum stick is disclosed which includes drum stick design featuring a hole drilled longitudinally in the playing striking end. The primary purpose is to accommodate a series multiple rods of reasonable straightness formed around a foam core of the same length. The result of combining these materials in this format produces a multi task drum stick.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventor: David Chappell Rundle
  • Patent number: 7213771
    Abstract: A garden soaker hose and reel assembly includes a ground anchor on one end of the soaker hose which is rigidly fixed to the soaker hose. The reel has a special configuration to make the soaker hose easier to unwind from the reel and to wind back onto the reel. The soaker hose can be provided with a stripe on the upper wall of the soaker hose to make it easily apparent if the hose is twisted.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: May 8, 2007
    Assignee: PPI Corporation Pty Ltd
    Inventors: David Chappell, Wendy Trinder, Eve Edmonds
  • Publication number: 20070072531
    Abstract: Dual loin knife blade members, in the form of a Z-blade and two styles (tabbed and non-tabbed) of J-blades, for use with knife assemblies in loin pulling machines for pork processing operations. The Z-blade knife comprises a shelf portion of extended length, formed of two separately-shaped blade portions, to maximize to the allowable customer dimensional length specification for the meat shelf being cut, while not cutting into and exposing the red meat of the pork loin eye. The J-blade, of either the tabbed or non-tabbed style, includes lower sweeping radius blade portions allowing the J-blade to lie closely adjacent and generally conform to the profile of the underlying split conveyor belt bed shape. The profiles for the present Z-blades and J-blades permit substantially increased yield in pork loin processing operations, reduced subsequent hand-trimming labor, as well as extended blade wear.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 29, 2007
    Applicant: HALL FABRICATION
    Inventors: DAVID CHAPPELL, RAYMOND SHANK
  • Patent number: 7084339
    Abstract: A stick type drumstick is disclosed which includes a plurality of elongated reasonably straight wooden rods formed around a central foam core. The central foam core is comprised of a larger diameter sized wooden rod, shorter in length and having attached to one end a foam rod of the same diameter. The plurality of rods matching the length of the central foam core are placed around its outside diameter, a retaining sleeve is securely fitted over the gripping end creating a handle. At the opposite or playing end an additional retaining sleeve shorter in length is secured slightly back from playing end allowing some flexibility for the outer rods but not allowing them to spread or splay allowing the foam core to slide out of position.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: August 1, 2006
    Inventor: David Chappell Rundle
  • Publication number: 20040222314
    Abstract: A garden soaker hose and reel assembly includes a ground anchor on one end of the soaker hose which is rigidly fixed to the soaker hose. The reel has a special configuration to make the soaker hose easier to unwind from the reel and to wind back onto the reel. The soaker hose can be provided with a stripe on the upper wall of the soaker hose to make it easily apparent if the hose is twisted.
    Type: Application
    Filed: February 4, 2004
    Publication date: November 11, 2004
    Inventors: David Chappell, Wendy Trinder, Eva Edmonds
  • Publication number: 20020078132
    Abstract: The disclosure includes a description of a method of handling messages received at a messaging system server. The method includes storing, in non-persistent storage, messages received from at least one client, removing delivered messages from the non-persistent storage, and saving messages stored in the non-persistent storage to persistent storage after a delay interval.
    Type: Application
    Filed: November 14, 2001
    Publication date: June 20, 2002
    Inventors: William M. Cullen, David A. Chappell
  • Patent number: 5998624
    Abstract: Compounds of the invention have the general structure ##STR1## X, Y or Z are, respectively independently, H, F or an isotope thereof, Br or an isotope thereof, I or an isotope thereof, At or an isotope thereof, (R.sub.1)W or (R.sub.2)V and R is --(R.sub.1)W, when W is H or F or an isotope thereof, R.sub.1 is linear or branched alkyl of 1-4 carbon atoms, R.sub.2 is vinyl, V is I or an isotope thereof and at least one of X, Y or Z is not H. The compounds of the invention bind to PK receptors.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: December 7, 1999
    Assignee: Emory University
    Inventors: Mark M. Goodman, Randolph E. Patterson, R. W. Alexander, David Chappell