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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 8181998 | Threaded pipe connection Conventional box and pin threads are machined with equal thread pitches and radial interference so when they are assembled, the pin elongates and the box contracts axially, causing a mismatch in the thread pitch which in turn, reduces sealing and best load transfer ... | 05/22/2012 |
| 8177262 | Mid-seal for expandable connections An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread form... | 05/15/2012 |
| 8167340 | Drill stem tubular connection with internal stiffener ring A threaded pipe coupling is shown for a drill pipe used in horizontal boring operations utilizing a special form of a threaded connection with an internal stiffener ring which eliminates the need for hot forging operations. The pipe coupling is used for joining an u... | 05/01/2012 |
| 8136846 | Cylindrical tapered thread form for tubular connections A thread form is shown which is used to make a threaded connection between two tubular members and which is capable of being screwed together and subsequently unscrewed. A pin member is provided having external threads with stab flanks and load flanks and flat crest... | 03/20/2012 |
| 8066307 | Thread joint for a drill string for percussive rock-drilling In percussion rock drilling a screw joint for a drill run or drill string including male and female screw threads (5, 9) on the elements (1, 2) are joined together to form a drill string. Within the screw joint the male thread (5) and the female... | 11/29/2011 |
| 7988205 | Wedge thread with torque shoulder A threaded pipe connection includes a pin member having an external thread increasing in width in one direction, a box member having an internal thread increasing in width in an opposite direction so that complementary internal and external threads move into engagem... | 08/02/2011 |
| 7900975 | Threaded joint for steel pipes A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of the threads in a complete threa... | 03/08/2011 |
| 7850211 | Wedge thread connections having a clearance gap volume A wedge-threaded tubular connection includes a pin member and a box member, wherein each of the pin and box members include an engaged thread area, and a clearance gap volume formed between corresponding roots and crests of the pin and box members and arranged along... | 12/14/2010 |
| 7823931 | Tubular threaded joint A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The pin or the box has an end sho... | 11/02/2010 |
| 7810849 | Threads with perturbations A threaded connection includes a pin member having a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, a box member having a box thread having a box thread crest, a box thread root, a box load flank, and a box stab flan... | 10/12/2010 |
| 7780202 | Oilfield tubular connection with increased compression capacity A threaded oilfield tubular connection 10 includes a pin member 12 having a first external tapered thread 24 and a second external tapered thread 26. A box member includes a first internal tapered thread 14 and a second internal ta... | 08/24/2010 |
| 7717478 | Scalloped wedge threads A threaded connection between adjacent tubular members includes a pin member providing an external wedge thread and a box member providing an internal wedge thread, wherein the internal wedge thread corresponds with the external wedge thread. Further, the threaded c... | 05/18/2010 |
| 7690697 | Thread form for tubular connections A thread form is shown which is used to make a threaded pipe connection capable of being screwed together and subsequently unscrewed. A pin member is provided having external threads with stab flanks and load flanks and flat crests and roots for mating with the mati... | 04/06/2010 |
| 7690696 | Wedge thread with torque shoulder A threaded pipe connection including a pin member having an external thread increasing in width in one direction, the external thread including load and stab flanks, a box member having an internal thread increasing in width in the other direction so that complement... | 04/06/2010 |
| 7686350 | Mismatched flanks for a wedge thread Threaded connections including a pin member and a box member and are mismatched. The pin member and the box member have wedge threads formed thereon with a gap formed between pin and box load flanks and/or pin and box stab flanks of the threaded connection. The mism... | 03/30/2010 |
| 7661728 | Threaded tubular connection with progressive axial thread interference A threaded connection includes at least one contact zone axially separated from threadings in which male and female elements are in sealed contact via bearing surfaces respectively constituted by a cambered surface and by a tapered surface. ... | 02/16/2010 |
| 7614667 | Pipe connection An external pipe joint between a pin section (30) and a box section (40) is disclosed. The end of the pin and box sections have complementary screw-threaded portions, adapted to interengage along the greater part of the axial length thereof, the thread... | 11/10/2009 |
| 7588269 | Z-shaped thread form for tubular connections A thread form is shown which is used to make a threaded pipe connection capable of being screwed together and subsequently unscrewed. A pin is provided having external threads with stab flanks and load flanks and flat crests and roots for mating with the mating inte... | 09/15/2009 |
| 7562911 | Wedge thread with sealing metal Threaded connections including a pin member and a box member and a sealing metal. The pin member and the box member have wedge threads formed thereon, and the sealing metal is disposed between the wedge threads of the pin member and the box member. The sealing metal... | 07/21/2009 |
| 7513534 | Fatigue-resistant threaded component for a tubular threaded joint A fatigue-resistant threaded element for a threaded tubular connection. A portion of threads of the threaded element have a helical groove opening into the threaded crest. A groove is formed in all or a portion of the threads of one or both end zones, namely the fir... | 04/07/2009 |
| 7494159 | Threaded joint for steel pipes In a threaded joint for steel pipes which are connected by threaded engagement of a pin member having a tapered male thread, a metal seal-forming portion, and a torque shoulder-forming portion on the end of a pipe, and a box member having a tapered female thread, a ... | 02/24/2009 |
| 7475917 | Threaded connection with variable flank angles A threaded connection for a conduit includes a pin member and a box member. The pin member includes a pin thread having a pin thread crest, a pin thread root, a pin load flank oriented at a pin load flank angle, and a pin stab flank oriented at a pin stab flank angl... | 01/13/2009 |
| 7434848 | Threaded tubular connection having interlocking tubular end structures A tubular connection having a first joint having outer threads and an inner bore, and a second joint having outer threads and an inner bore. The tubular connection further includes an outer nut having inner threads that cooperate with the outer threads of the first ... | 10/14/2008 |
| 7431347 | Hollow sucker rod connection with second torque shoulder An elongated drive string assembly comprising a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each holl... | 10/07/2008 |
| 7431348 | Subsurface drill string A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square t... | 10/07/2008 |
| 7425024 | Submersible pump drop pipe and casing assembly connection and method of manufacture A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second sections, the first section being used to align and direct the base into the se... | 09/16/2008 |
| 7416374 | Fast make-up fatigue resistant rotary shouldered connection A thread form having improved strength and fatigue resistance. The root of the thread is cut on multiple cutting radii having displaced centers. At least two of the root surfaces are formed by cutting radii having lengths that are greater than the root truncation. T... | 08/26/2008 |
| 7380840 | Expandable threaded connection Tubular connections and methods of designing tubular connections having selected root/crest clearance when the box member and pin member are made-up. When the tubular connection is radially expanded, a thread seal is formed over at least part of the tubular connecti... | 06/03/2008 |
| 7380839 | Sealing expandable tubing Expandable tubing and methods seal a connection between expandable tubulars, and in particular, seal a connection between expandable tubulars post-expansion. In one embodiment, a method includes sealing a connection between expandable tubulars in the form of section... | 06/03/2008 |
| 7364536 | Weight bar with internally-threaded axial ends A weight bar for use with a dumbbell having an externally-threaded end is provided that includes a substantially cylindrical elongated bar having a longitudinal axis, first and second axial ends and an intermediate section extending between the axial ends. The first... | 04/29/2008 |
| 7360798 | Threaded joint for steel pipes A threaded joint for steel pipes comprising a pin 1 and a box 2 each having a contact surface comprising a threaded portion 3 or 4 and an unthreaded metal contact portion 8 is provided with improved anti-galling propertied by formi... | 04/22/2008 |
| 7350830 | Pressure relieved thread connection Lubricant escape passages are formed in the threads used to connect one tubular body to another. The passages conduct trapped thread lubricant out of the threaded area to prevent the creation of high lubricant pressure that may damage or cause improper make up of th... | 04/01/2008 |
| 7347459 | Coupling for drilling-with-casing operations A modified API Buttress threaded casing connection is disclosed for use in drilling oil and gas wells in lieu of using conventional drill pipe. The coupling threads only are multiple tapered yet can be mated with standard API Buttress pin threads having a single tap... | 03/25/2008 |
| 7334821 | Premium threaded tubular joint comprising at least a threaded element with end lip A premium threaded tubular connection including, on at least one threaded element, a distal abutment surface at the free end of a threaded element, and a lip sealing surface at a given distance from the threading. The lip includes an appendix that extends the lip to... | 02/26/2008 |
| 7331614 | Tubular threaded joint with trapezoid threads having convex bulged thread surface A threaded tubular connection includes two elements, male and female, made up one into the other to a given torque in which, prior to making up, at least one thread face under contact pressure has a convexly rounded shape that is continuous over its width with a rad... | 02/19/2008 |
| 7311863 | Method for producing glass-like carbon pipe, and glass-like carbon pipe produced by such method A method for producing a glass-like carbon pipe is provided. The method comprises the steps of producing a plurality of thermosetting resin molded articles by centrifugal molding, said molded articles each having the shape of the sections of a pipe divided in the lo... | 12/25/2007 |
| 7281925 | Implant arrangement An implant is arranged with a thread which can be exposed to a jaw bone and which has a first extent in the longitudinal direction of the implant. Thread flanks are assigned second extents between the inner and outer peripheries of the thread. Along all or most of t... | 10/16/2007 |
| 7261326 | Submersible pump drop pipe and casing assembly connection and method of manufacture A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second cylinder section, the first cylinder section being used to align and direct the... | 08/28/2007 |
| 7255374 | Threaded tube joint A threaded tube joint for oil extraction industry has a trapezoidal thread and a toroidal sealing surface (11) placed at its end near the thread and engages, for sealing, a corresponding frusto-conical sealing surface (12) wherein the toroidal sealing ... | 08/14/2007 |
| 7243957 | Pseudo two-step connection A threaded connection includes a continuous pin thread including at least a first step, a mid-step, and a second step formed sequentially thereon. A continuous box thread includes at least a first step, a mid-step, and a second step formed sequentially thereon, wher... | 07/17/2007 |
