Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7404458 | Rotary percussive drilling device The device has a drill body, of generally cylindrical shape, connected by a flexible pipe to a high-pressure water pump placed on a low-height carrying vehicle. A striking piston is mounted movably, and is resiliently returned, in the drill body, and is subjected to... | 07/29/2008 |
| 7311149 | Jar with adjustable preload A jar provided with an adjustable preload has a housing defining an anvil surface and a mandrel, movable relative to the housing under an applied load, defining a hammer surface to impact the anvil surface. A trigger mechanism for releasing the mandrel to cause the ... | 12/25/2007 |
| 7299872 | Hydraulic-mechanical jar tool A jar mechanism comprises a housing having a fluid chamber therein, a piston encircled by an annular metering sleeve and movably mounted in the fluid chamber for movement between a first position and a second position, and a jar member moveably mounted in the housin... | 11/27/2007 |
| 7281575 | Field adjustable impact jar An impact jar including a biasable member, an impactor and an impactee slidably coupled to the impactor. The impactor includes a first down-hole tool connector. The impactee includes a second down-hole tool connector distal from the first down-hole tool connector an... | 10/16/2007 |
| 7267176 | Downhole resettable jar tool with axial passageway and multiple biasing means A wireline jar tool delivers instrument packages into wellbores and retrieves tools when they get stuck. The jar has several stored spring chambers connected to accelerate an upper spring chamber away from a stuck lower carrier chamber that supports instrument packa... | 09/11/2007 |
| 7255182 | Ground drilling tool A back bit (20) is disclosed which is to used in conjunction with drilling equipment (10) which may include a derrick (11), a drilling pipe (12), a back head (14), a starting rod (13), and a cutting bit (15) mounted t... | 08/14/2007 |
| 7163058 | Hydraulic jar device An arrangement by a hydraulic jar device, especially for use in underground wells, where the jar device is installed in a pipe string led down into the well, and designed so that e.g. a stuck object in the well may be loosened or broken up by upward or downward perc... | 01/16/2007 |
| 7114970 | Electrical conducting system A generally tubular drill string has a conductive path over a plurality of drill pipe section (10). Each drill pipe section has a first end and a second end, and a wall, and the first end has a first radial sealing surfaces (11) and the second end has ... | 10/03/2006 |
| 7111678 | Field adjustable impact jar An impact jar including a biasable member, an impactor and an impactee slidably coupled to the impactor. The impactor includes a first down-hole tool connector. The impactee includes a second down-hole tool connector distal from the first down-hole tool connector an... | 09/26/2006 |
| 7093677 | Percussion drill head The invention relates to a method for horizontal drilling with a percussion implement and a percussion head or percussion head element mounted in a movable manner relative to the percussion implement, the percussion impulse being transmitted in at least three steps.... | 08/22/2006 |
| 7055633 | Concrete drill A concrete drill for a rotary and percussively driven hand tool machine with a cutting part (1) and a striking part (2) that is axially and limited displaceable relative to the cutting part (1). Each of the cutting part (1) and the striki... | 06/06/2006 |
| 7044240 | Torque absorber for downhole drill motor A torque absorber is disposed on a drill string near the motor. The torque absorber automatically adjusts the weight on a drill bit and reduces the likelihood of motor stall caused by resistance to drill bit rotation. The torque absorber includes an upper unit assem... | 05/16/2006 |
| 7025130 | Methods and apparatus to control downhole tools The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string... | 04/11/2006 |
| 7011156 | Percussion tool and method A percussion apparatus and method of using the percussion apparatus. The apparatus may be used for delivering an impact to a tubular string. The apparatus comprises a cylindrical member having an internal bore containing an anvil and a first guide profile. The appar... | 03/14/2006 |
| 6951439 | Dust collection unit A dust collection unit suitable for use with a hand held drilling and/or hammering tool, comprising a shroud (34) which is adapted to extend around a tool or bit (24) of such a hammering and/or drilling tool so as to collect dust in an airflow passing ... | 10/04/2005 |
| 6948560 | Jar for use in a downhole toolstring A jar (10), for use in a downhole toolstring comprising: a hollow housing (11); a jar mandrel (13); a latch sub (14); one or more latch keys (16); a cam surface (17); a chamber (23); a compression spring; and an adjus... | 09/27/2005 |
| 6896060 | Downhole jarring tool adjuster A downhole jarring apparatus including a shaft and a first mandrel configured to releasably engage, a collar operatively attached to the shaft such that an axial position of the collar relative to the shaft is adjustable by access through an opening in an outer surf... | 05/24/2005 |
| 6745836 | Down hole motor assembly and associated method for providing radial energy The down hole motor is a self-contained radial drive unit that is driven by a linear input, which can be supplied from various sources. As linear motion is applied to the input of the tool, drive pins on a drive shaft follow a helical path, converting the linear mot... | 06/08/2004 |
| 6736223 | Thrust control apparatus A thrust absorber is interposed between a thruster and an anchor that cooperate to axially displace another member. The thrust absorber includes an enclosure fixed to the anchor and a retainer connected to the thruster. A biasing member is operably associated with t... | 05/18/2004 |
| 6571870 | Method and apparatus to vibrate a downhole component An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vi... | 06/03/2003 |
| 6338387 | Downward energized motion jars An apparatus for jarring a portion of drill string lodged within a borehole, by jarring downhole using tension only, including a first member for attaching a first lower end of the apparatus to the upper end of the lodged tool or pipe through a threadable... | 01/15/2002 |
| 6328101 | Impact enhancing tool A double acting jar enhancer tool is capable of storing energy to enhance both upward and downward impacts delivered by a drilling jar. The enhancer stores energy in a single energy storage stack, typically of either bellville washer springs or a coil spr... | 12/11/2001 |
| 6283229 | Impact device for directional boring An impact boring tool according to the invention suitable for using with a directional boring machine has a tubular housing and a head mounted at a front end of the housing. The head preferably includes a chisel configured for breaking loose rocks and sto... | 09/04/2001 |
| 6062324 | Fluid operated vibratory oil well drilling tool An impact driven oil and gas well tool for use with an elongated tubular string having a central flow conveying bore is provided for channeling pressurized fluid to the tool body. The apparatus further includes an elongated longitudinally extending tool b... | 05/16/2000 |
| 6035954 | Fluid operated vibratory oil well drilling tool with anti-chatter switch An impact driven oil and gas well tool for use with an elongated tubular string having a central flow conveying bore is provided for channeling pressurized fluid to the tool body. The apparatus further includes an elongated longitudinally extending tool b... | 03/14/2000 |
| 5875842 | Multi-impact jarring apparatus and method for using same A multi-impact jarring apparatus for retrieving objects stuck within a well bore comprises (1) an operating mandrel reciprocatively mounted within an upper housing attached to a fishing operating string, the mandrel acting as a hammer against the housing ... | 03/02/1999 |
| 5850884 | Moling apparatus A moling apparatus comprises a housing having a head for penetrating ground, an anvil in the housing connected to the head, and a hammer in the housing and spaced therefrom by a spring. A vibrator unit is spaced from the hammer and arranged to transfer vi... | 12/22/1998 |
| 5833541 | Elastomeric joints having interlocking threaded portions An elastomeric joint that can be used, as part of an articulated coupling in a progressive cavity device, including using the articulated coupling for converting the complex motion of the rotor into simple rotation. The coupling includes two shafts couple... | 11/10/1998 |
| 5669458 | Rotary jar A rotary jar is described that is part of a drill string and includes a mandrel and an anvil that move longitudinally in opposite directions to deliver a sharp upward or downward blow that is transmitted to a fish, which may be a separate tool or a portio... | 09/23/1997 |
| 5624001 | Mechanical-hydraulic double-acting drilling jar A mechanical-hydraulic double-acting drilling jar includes an inner tubular mandrel telescopingly supported inside an outer tubular housing. The mandrel and the housing each consist of a plurality of tubular segments joined together, preferably by threade... | 04/29/1997 |
| 5503228 | Jar apparatus and method of jarring A jar apparatus (jar) 10 includes a plurality of pistons 16 that are secured together to form a piston assembly 23. Piston assembly 23 is movable axially in response to an actuating pressure differential between the jar bore 17 and the portion of borehole... | 04/02/1996 |
| 5425430 | Jar enhancer There is disclosed a tool for enhancing the impact delivered to an object stuck in a well bore by means of a jar having a first tubular member connected to the object and a second tubular member having a hammer arranged to deliver an upward blow to an anv... | 06/20/1995 |
| 5330018 | Auto set bi-directional jar An automatic set bi-directional apparatus for jarring an object in a well bore is disclosed. The apparatus comprises a tubular member having a portion defining an upper and lower striking shoulder, said tubular member having one end connected to a work st... | 07/19/1994 |
| 5318139 | Reduced waiting time hydraulic drilling jar A reduce waiting time drilling jar 1 includes a mandrel 2, a housing 3 telescopingly positioned about the mandrel 2, and first and second pistons 89, 111 positioned axially between the mandrel 2 and the housing 3. The pistons 89, 111 are spaced longitudin... | 06/07/1994 |
| 5267613 | Upstroke jar An upstroke jar for use in downhole operations in an oil or gas well and for connection between a wireline and a tool comprises a casing defining an anvil and for connection to the tool, a hammer slidable axially within the casing for impacting with the a... | 12/07/1993 |
| 5217070 | Drill string jarring and bumping tool A jarring and bumping tool is provided, having a mandrel telescopically received within a barrel for relative longitudinal movement. Upper and lower seals form an oil-containing annular space therebetween. The mandrel carries a free-floating annular prima... | 06/08/1993 |
| 5139086 | Double acting accelerator jar A combined accelerator, for accumulating energy, and jar, for sudden release of accumulated energy, for delivering up or down jarring impacts to objects stuck downhole in a wellbore, includes upper and lower tubular members which are telescopically connec... | 08/18/1992 |
| 5052485 | Jar mechanism A jar mechanism is described, which comprises a piston (5) movably mounted in a fluid chamber (9). A jar member (2) is releasably coupled to the piston (5) by a release device (3, 4; 3, 38, 39, 40, 54, 64) so that when the piston (5) is in a first positio... | 10/01/1991 |
| 5022474 | Multiple blow percussion drill assembly with rapid field maintenance and adjustment capability A multiple blow percussion drill assembly is specially configured to provide significantly increased maintainability and adjustability in the field, thereby greatly extending its service life and usefulness over a wide variety of drilling conditions. Both... | 06/11/1991 |
| 5022473 | Adjustable fishing jar A jar tool for inclusion into a well fishing operating string which provides resilient tensional stretch to operate the tool. The tool is adapted to compress an upper release spring to store energy corresponding to tensional force in the operating string ... | 06/11/1991 |
