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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 4971146 | Downhole chemical cutting tool A downhole chemical cutting tool having an anchoring system employing interchangeable slip arrays of progressively larger outside diameters that can be used economically to adjust the range of the anchoring system. The range can be further adjusted by uti... | 11/20/1990 |
| 4949750 | Surge reliever relief valve A surge reliever relief valve is provided in which a flexible membrane is maintained in a peripherally sealed relationship across a rigid grid. The grid bounds the laterally adjacent intake and output regions of the valve. Intake pressure extends the memb... | 08/21/1990 |
| 4934186 | Automatic echo meter An apparatus (10) is disclosed for permitting continuous calculations of the depth of the fluid level (12) within a well bore (14) during a test interval. A sonic event is generated in the well bore, and the reflected sonic signals from down hole tubing c... | 06/19/1990 |
| 4924497 | Pay station telephone interface circuits An interface (10) is disclosed for coupling a conventional pay station telephone (12) to a telephone switching system (16). The interface (10) provides supervision signal detection functions normally provided by a switching system, and thus can be connect... | 05/08/1990 |
| 4917709 | Permeation pH control system A simplified, single component resin bed is coupled with a permeation tube and bottle. The permeation bottle contains an ionic species and a dissolved gas. The apparatus makes unnecessary a multi-component resin ion exchange column for solvent pH control ... | 04/17/1990 |
| 4916733 | Pay station telephone call answer supervision apparatus An interface (10) is disclosed for coupling a conventional pay station telephone (12) to a telephone switching system (16). The interface (10) provides supervision signal detection functions normally provided by a switching system, and thus can be connect... | 04/10/1990 |
| 4893182 | Video tracking and display system An imaging processing system (10) for displaying a succession of selected separated images of a moving object (62, 64) moving in an otherwise substantially static scene includes an image sensor (12) for generating video signals of the static scene and for... | 01/09/1990 |
| 4884729 | Spare tire rack An improved tire rack (10) is disclosed for use on any vehicle, but which is particularly suitable for use on a pickup truck (12). Brackets (24, 26) are mounted on the frame members of the truck and support a rod (28) and arms (32, 36) for pivotal motion ... | 12/05/1989 |
| 4881874 | Tail rotor A helicopter tail rotor (10, 130) includes a drive mast (12) having an axis of rotation (14). A first blade pair (20) is mounted for rotation about the drive mast (12). The first blade pair (20) includes a pitch change axis (54) perpendicularly disposed t... | 11/21/1989 |
| 4881759 | All welded sound isolation flexible connection A flexible pipe joint having an annular housing with a central cavity in which a nipple is partially submerged. The nipple has a flared end on the submerged portion thereof. An elastomeric ring, internally contoured spherically with reference to a common ... | 11/21/1989 |
| 4872929 | Composite explosive utilizing water-soluble fuels Disclosed is an explosive composition formed by a mixture of solid oxidizer salt and emulsion. In one aspect the emulsion contains no dissolved inorganic oxidizer salts in the aqueous phase. In another embodiment the emulsion contains an aqueous solution ... | 10/10/1989 |
| 4873629 | Instruction processing unit for computer A computer (20) is configured for optimizing the processing rate of instructions and the throughput of data. The computer (20) includes a main memory (99), a memory control unit (22), a physical cache unit (100), and a central processor (156). A instructi... | 10/10/1989 |
| 4872565 | Apparatus and method for clearing debris from cut trees A Christmas tree shaker including a base with a horizontal turntable mounted rotatably thereon on a motor driven shaft. A tree trunk receiving receptacle is mounted on the turntable for limited relative rotation with respect thereto. The receptacle is off... | 10/10/1989 |
| 4869529 | Automatic bookmark and page holding device A bookmark and page holding device is provided for automatically holding and marking a page of a book. A spring clip attaches the bookmark to the rear cover of a book. A spring-loaded swing arm is pivotally attached to the spring clip at one end and has a... | 09/26/1989 |
| 4869167 | Variable speed oscillating roller A variable speed oscillating roller assembly (10) is provided for use on a press. The roller (12) in the assembly can be adjusted to oscillate at a desired speed by adjusting the frictional engagement between the roller and a first sleeve (18). If desired... | 09/26/1989 |
| 4868976 | Splicer tool A tool (10) facilitates use of self-stripping electrical connectors (12). The connectors are formed into a string held within a holder (14) and indexed sequentially to the forward end of the body where an integral pair of crimping pliers (16) activates th... | 09/26/1989 |
| 4867158 | Hand held battery powered bone awl A hand held, self powered bone awl (10, 50) is disclosed which can be held in the hand of a surgeon for drilling holes through bone, such as the sternum bone during open heart surgery. In one embodiment, the awl is activated by a finger operated switch (3... | 09/19/1989 |
| 4868742 | Input/output bus for system which generates a new header parcel when an interrupted data block transfer between a computer and peripherals is resumed A communication bus (14) provides bidirectional data communication between a computer (12) and various peripheral units including input/output processors (18, 20) and a service processor (22). The computer includes a memory control unit (24) which is conn... | 09/19/1989 |
| 4865277 | Copilot quick connect cyclic stick An aircraft flight control stick is mounted on a gimbal which provides left, right, forward and aft pivotal motion of the stick. A pivot member that is mechanically linked to the aircraft flight controls is attached to the gimbal through a uni-ball bearin... | 09/12/1989 |
| 4865096 | Lightweight pillow tank A lightweight pillow tank (10) is disclosed which includes upper and lower sections (12, 14) which are secured together along a seam (22) of predetermined width (24). A sleeve extends along a mid line of the width about the entire perimeter to the seam. S... | 09/12/1989 |
| 4865341 | Apparatus for varying a vehicle wheelbase A trailer body (600) and pedestal (604) are provided where the pedestal supports an axle assembly (605) which is pivotally secured to the pedestal so that when the pedestal is in the forward position to permit trailer dumping, the axle assembly pivots abo... | 09/12/1989 |
| 4864616 | Cryptographic labeling of electronically stored data A method of cryptographically labeling electronically stored data is provided as part of a security system for personal computers. In protecting sensitive files of data, the labeling method utilizes a plurality of key streams, which are long, relatively p... | 09/05/1989 |
| 4854950 | Moisture separator A moisture separator (10, 150, 200) is provided for filtering air being provided to a marine power plant. If the moisture separator becomes clogged, reducing air flow, a vacuum sensing switch (108) is closed to power panels (18, 20) to an opened position,... | 08/08/1989 |
| 4851510 | Monoclonal antibodies to novel melanoma-associated antigens A new cell line has been made which is capable of producing an antibody that reacts with melanoma associated tumors cells. Antigens capable of reacting with the new antibody have been isolated and characterized. Methods are disclosed for the utilizing the... | 07/25/1989 |
| 4850552 | Landing gear load transducer A landing gear load sensor (24) for an aircraft (10) having a skid type landing gear (14) is provided. The sensor (24) includes a shear beam (30) having a loadbearing area (40). Structure (32, 34) is provided for mounting the shear beam (30) to the aircra... | 07/25/1989 |
| 4849027 | Method for recycling foamed solvents A method for using a foamed liquid for cleaning and/or inerting a vessel is described which allows for continuous recycling of the foam and its breakout liquid and gas components into regenerated foam which is continously directed back into the vessel.... | 07/18/1989 |
| 4850012 | Automated access facilities for use with key telephone systems A call processor (32) for intercepting incoming calls to a key telephone system (10) and returning a message to a calling party. A digital message storage unit (48) stores messages associating called parties with respective pseudo-telephone numbers so the... | 07/18/1989 |
| 4844213 | Energy absorption system Several embodiments (10, 30, 80) of an energy absorption system are designed for permitting progressive collapse of the system by absorbing energy within the system. In one embodiment, a system (10) comprises conical bodies (12) separated by cables (20), ... | 07/04/1989 |
| 4845628 | Method for optimization of drilling costs Disclosed is a real-time method for minimizing the expected, controllable unit cost over a future drilling interval by simulating the values of selected operating variables and lithologies.... | 07/04/1989 |
| 4842252 | Rapidly extendable jack The present invention provides a three-piece telescoping jack that is capable of rapid coarse adjustments in height. The invention comprises first, second and third elongated tubular members that are somewhat nested in a telescoping relationship. The inve... | 06/27/1989 |
| 4842248 | Hydraulic rod pusher-puller An hydraulic apparatus is provided for pushing and pulling rod or pipe underground. The apparatus includes a frame for mounting an hydraulic cylinder and a carriage. The carriage is mounted for reciprocating movement along rails attached to the frame. The... | 06/27/1989 |
| 4842181 | Apparatus for loading food for alignment with food sticks An apparatus for loading food for alignment with food sticks is provided. A food bin stores the food to be processed. The bin is filled with food which is gravity fed into J-shaped sections of a food conveyor belt. Concurrently, a stick conveyor system ca... | 06/27/1989 |
| 4840517 | Soil displacement tools A soil displacement tool, or mole, comprises a hollow cylindrical body in which is provided an hydraulically reciprocal piston the movement of which drives the tool through the soil to form a hole, the body and piston being annular such that the tool is h... | 06/20/1989 |
| 4840542 | Infusion pump with direct pressure sensing An infusion pump incorporates a cassette formed by bonding of two substantially flat sheets. The fluid to be infused to the patient comes into contact only with the cassette. The cassette includes first and second flexible sheets which define a pumping ch... | 06/20/1989 |
| 4837576 | Antenna tracking system An antenna tracking system tracks a primary antenna to follow a moving signal source, such as a communication satellite. A secondary antenna has a greater beam width than the primary antenna and receives the same tracking signal from the satellite. The pr... | 06/06/1989 |
| 4834582 | Methods for underpinning unstable structures Several underpinning arrangements are described. In each, a concrete pile is cast in a hole formed adjacent to the structure to be underpinned. The hole is formed from at or near ground level and is vertical or at an angle close to the vertical. At least ... | 05/30/1989 |
| 4833866 | Baled nuclear waste box handler An improved system (10) is provided for loading compacted waste bales (34) in each compartment (22, 24, 26) of a container (14). The system (10) includes a container handling apparatus (12) which sequentially positions each of the compartments before the ... | 05/30/1989 |
| 4831767 | Fishing lure A fishing lure (20) has a body structure (22) with hooks (24) attached thereto. A windup mechanism (80) includes a spool (58) and a spring (90) operating in conjunction with the spool to store energy therin. Appendages, such as legs or fins (26, 28, 224, ... | 05/23/1989 |
| 4830687 | Stable fluid systems for preparing high density explosive compositions The invention provides a thermodynamically stable fluid system for use in combination with a solid oxidizer to provide an explosive composition. The fluid system comprises 1-70% by weight of water, 5-20% by weight of a surfactant, 0-35% by weight of a cos... | 05/16/1989 |
| 4826209 | Vehicle collision safety system A safety vehicle (10) for passengers includes a horizontally disposed chassis (16) having a front (16a) and rear (16b) portion. The vehicle body (14) is disposed on the chassis (16) and includes a passenger section (20) disposed intermediate the front and... | 05/02/1989 |
