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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 7575222 | Drawworks for drilling rigs A drawworks for drilling rigs having an improved dual brake system that divides the drill line load equally between the dual brakes, a more efficient braking action is realized by the provision of radial guide rollers positioned to urge the brake bands into concentr... | 08/18/2009 |
| 7311682 | Massage table for adjusting spinal area A physical therapy apparatus having a padded top surface upon which a patient comfortably reclines in the face up position with the spinal area being placed in contact respective a plurality of massaging members. The massaging members are recessed within the padded ... | 12/25/2007 |
| 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 |
| 6497281 | Cable actuated downhole smart pump Improvements in method and apparatus for producing hydrocarbons from marginal oil wells, especially wells that previously used standard pump jacks. Substitution of the present invention for prior art production equipment solves many common problems found ... | 12/24/2002 |
| 5664602 | Check valve for meter run A fluid check valve for preventing back flow of fluid through a fluid conduit. The check valve is connected in series with a meter run to enable unrestricted normal flow to occur through a passageway in the valve body, and to prevent backflow. A throat fo... | 09/09/1997 |
| 5634472 | Pain measurment A determination is quantitatively made of the severity of pain exhibited at a specified area on an animal by determining the magnitude of cooling required at the area of pain in order for the pain to be masked or made to disappear. The amount of cooling r... | 06/03/1997 |
| 5596855 | Insitu insulated concrete wall structure A module for building an insulated concrete wall structure by stacking the modules together until the desired configuration of a concrete form is completed, and when the form is filled, a concrete monolithic wall structure having foam insulation permanent... | 01/28/1997 |
| 5579867 | Lubricator ladder A safety ladder made special for attachment to a lubricator, or a vertically disposed pipe, which enables a person to safely scale the lubricator after it has been affixed to a well head. The improved safety ladder apparatus of this invention is externall... | 12/03/1996 |
| 5544574 | Pecan shucker This invention is to an improved pecan shucker apparatus for shucking pecans, and particularly for obtaining pecan meat halves that are intact and easily freed of the undesirable parts of the pecan, such as the pecan shell and other inedible parts of the ... | 08/13/1996 |
| 5538080 | Self aligning stuffing box for pumpjack units A self aligning stuffing box for a pumpjack unit of the type having a polished rod reciprocatingly extending therethrough and downhole to a pump located at the lower end of a borehole. The stuffing box has a main body that terminates in a tubing adaptor a... | 07/23/1996 |
| 5497567 | Wide trencher with plurality of chain type diggers An improved excavating machine for digging an unusually wide ditch having a boom that supports a plurality of chain type digging apparatus. There is a head shaft at one end of the boom and a tail shaft at the opposed end of the boom. An intermediate shaft... | 03/12/1996 |
| 5471771 | Method and apparatus for cooling chain type diggers A ground supported excavating machine of the type having a main frame and a prime mover for propelling the machine along the ground, and a boom supported from the frame that has an endless chain type digging member rotated by sprockets on a head shaft tha... | 12/05/1995 |
| 5469884 | Check valve for meter run A fluid check valve for preventing back flow of fluid through a fluid conduit. The check valve is connected in series with a meter run to enable unrestricted normal flow to occur through a passageway in the valve body, and to prevent backflow. A throat fo... | 11/28/1995 |
| 5437086 | Method of fabricating a bi-metal pipe section A method of making a bi-metal pipe section, and especially reclaiming a used or damaged pipe section by making it into a bi-metal pipe section which resists corrosion. The bi-metal pipe section is used in constructing a pipe line or production tubing that... | 08/01/1995 |
| 5431230 | Slant wellbore tubing anchor catcher with rotating mandrel A crooked, slanted, cased wellbore extends downhole to a pay zone which is produced by a rod actuated downhole pump that lifts fluid from the bottom of the wellbore up through a tubing string to a wellhead. The pump is seated in a pump cavity, and the tub... | 07/11/1995 |
| 5403110 | Square T clamp assembly for elongate members A clamp assembly for joining perpendicularly arranged, square, elongate, structural members to form a framework. The clamp assembly comprises a pair of shaped gripping members aligned in confronting relationship respective one another and have opposed par... | 04/04/1995 |
| 5388646 | Method for rejuvenation of injection wells An injection well has become plugged with an accumulation of undesirable material that is causing the wellhead pressure required to effect a selected minimum flow rate of injection fluid into the formation to have increased to a maximum value. The method ... | 02/14/1995 |
| 5375422 | High efficiency nitrogen rejection unit A process for separating nitrogen and hydrocarbons from a mixture of gases by splitting the mixture into a plurality of separate streams and throttling the flow of each stream to achieve a selected variable flow rate therebetween. The plurality of separat... | 12/27/1994 |
| 5343944 | Self aligning stuffing box for pumpjack units A self aligning stuffing box for a pumpjack unit of the type having a polished rod reciprocatingly extending therethrough and downhole to a pump located at the lower end of the borehole. The stuffing box is an annular main body having a tubing adaptor at ... | 09/06/1994 |
| 5329813 | Grasp analysis apparatus A grasp analysis apparatus and method by which the power of grasp exerted by the human hand can be measured, and by which a determination can be made related to the maximum effort of grasp that is made during the measurement. The apparatus includes a hous... | 07/19/1994 |
| 5327975 | Tubing anchor catcher with rotating mandrel A cased wellbore extends downhole to a pay zone which is produced by a rod actuated downhole pump that lifts fluid from the bottom of the wellbore up through a tubing string to a wellhead. The pump is seated in a pump cavity, and the tubing string is tens... | 07/12/1994 |
| 5323654 | Shielded sight glass A sight glass placed between two spaced apart confronting fittings and connected to a vessel to show the level of liquid in the vessel is shielded by a novel transparent plastic enclosure. The enclosure is in the form of a polygon and is made from a sheet... | 06/28/1994 |
| 5310282 | Hydrocarbon recovery from drilling mud stored in salt cavity Used drilling mud, and other high solids oilfield waste which has been contaminated with hydrocarbons, is pumped downhole into a salt cavity where the mud and hydrocarbons separate with the mud gravitating to the bottom of the cavity and the hydrocarbons ... | 05/10/1994 |
| 5291707 | Bird protector for exhaust stack Bird protector apparatus for attachment to the outlet end of a flue gas stack that emits flue gases into the atmosphere. The stack has a concentrically arranged outer annular member spaced from the inner stack for flow of gas therebetween. The protector a... | 03/08/1994 |
| 5259559 | Electrical generation and distribution system for a plurality of water wells An irrigation system for watering a group of large fields on which crops are grown. A water well is arranged on each field and an electric motor driven pump produces each water well. A motor/generator supplies current to an electric motor of each water we... | 11/09/1993 |
| 5257505 | High efficiency nitrogen rejection unit A process for separating nitrogen and hydrocarbons from a mixture of gases by splitting the mixture into a plurality of separate streams and throttling the flow of each stream to achieve a selected variable flow rate therebetween. The plurality of separat... | 11/02/1993 |
| 5242604 | Lateral flow coalescing multiphase plate separator Oil, water, and sludge are separated from a mixture thereof to provide waste oil, usable water, and concentrated sludge. The sludge can be further reduced in volume to facilitate disposal. The invention includes a system having a vessel with a coalescer s... | 09/07/1993 |
| 5233988 | Neuro-aid Neurological testing apparatus by which the sense receptor's of a person can be tested. The apparatus is of a configuration to be held in the hand and includes a body having a front surface opposed to a rear surface to provide ample space for supporting a... | 08/10/1993 |
| 5228506 | Spill collection system for wellheads A collection system for accumulating spills from a well rig that is working on a wellbore, and accumulates the spills in a suitable storage vessel. The floor of the rig is located above the wellhead of a wellbore, and the collection system is located ther... | 07/20/1993 |
| 5222619 | Enclosure with wedge locking device An enclosure comprising a container having a bottom, a sidewall attached to the bottom and terminating in an open end. The sidewall has an inner wall surface opposed to an outer wall surface. A closure member made complementary to the open end can be remo... | 06/29/1993 |
| 5221471 | Tool for magnetic treatment of water A tool for magnetic treatment of fluid flowing therethrough has an annular casing that can be connected to a flow conduit to receive flow from the conduit when connected thereto. A plurality of magnets are supported from a plurality of spaced inner and ou... | 06/22/1993 |
| 5209001 | Trenching machine with longitudinally stabilized main frame for stabilizing digging implement An excavating machine has a track mounted main frame with a digging implement mounted to one end of the main frame for vertical adjustment in the usual manner. A stabilizer apparatus is pivotally mounted to the other end of the main frame. The stabilizer ... | 05/11/1993 |
| 5209297 | Method of drilling through a high temperature formation An improved drilling fluid for use in a drilling operation. A drilling rig has a drill string for forming a borehole while drilling fluid flows down the drill string to a drill bit and back up the borehole annulus to a mud pit. The improved drilling fluid... | 05/11/1993 |
| 5186164 | Mist inhaler An inhaler apparatus by which a vapor is condensed by a powder containing medication into a cloud of very fine particles that can be inhaled deep into a patient's lungs. The apparatus includes an enclosure, preferably a transparent container, which enable... | 02/16/1993 |
| 5157970 | Grasp analysis method A grasp analysis apparatus and method by which the power of grasp exerted by the human hand can be measured, and by which a determination can be made related to the maximum effort of grasp that is made during the measurement. The apparatus includes a hous... | 10/27/1992 |
| 5150496 | Internal grinding and cutting device for pipe and casing A portable system for reworking the inside diameter of oil field pipe and casing, and especially plastic coated pipe that is to be re-coated. The system includes a grinderhead that removes irregularities from the inner surface of the pipe to render the pi... | 09/29/1992 |
| 5141544 | Nitrogen rejection unit A process for separating nitrogen and hydrocarbons from a mixture of gases by splitting the mixture into a plurality of separate streams and throttling the flow of each stream to achieve a selected variable flow rate therebetween. The plurality of separat... | 08/25/1992 |
| 5139090 | Tubing rotator with downhole tubing swivel A cased wellbore extends downhole to a pay zone which is produced by a rod actuated downhole pump that lifts fluid from the bottom of the wellbore up through a tubing string to a wellhead. The pump is seated in a pump cavity. The tubing string is tensione... | 08/18/1992 |
| 5104296 | Engine end for a downhole hydraulically actuated pump assembly A hydraulically actuated downhole pump assembly for producing a well is powered by a fluid that is pumped downhole to an engine end thereof. The pump assembly has a pump end which is connected to a source of formation fluid so that the engine end drives t... | 04/14/1992 |
| 5100148 | Golf practice apparatus A golf practice and exercise apparatus has a shaft with a grip at one end and a variable drag device at the other end. The variable drag device has a main body with opposed edges. Several wings are attached to each of the edges in a manner to be easily re... | 03/31/1992 |
