Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 4715426 | Machine for the curved continuous casting with rigid starting bar This invention relates to a machine for the curved continuous casting of metals, particularly steel, with a semi-rigid starting bar (20) comprised of two successive segments (120, 220) pivoted to each other (21). In the stowed position of the starting bar... | 12/29/1987 |
| 4715427 | Process and apparatus for automating a baking cycle under hot air of sand molds A process and apparatus for automating a hot-air baking cycle of sand molds. Such process and apparatus make it possible to regulate the hot-air baking or drying speed in a sand mold during a baking cycle. This regulation can be accomplished before castin... | 12/29/1987 |
| 4715428 | Method and apparatus for direct casting of crystalline strip by radiant cooling A method is provided for directly casting molten metal from a U-shaped structure of the exit end of a casting vessel onto a moving casting surface to form a continuous strip of crystalline material. The method includes radiantly cooling the molten metal i... | 12/29/1987 |
| 4715429 | Method and means for applying a heat exchanger in a drill hole for the purpose of heat recovery or storage The present invention relates to a method and a means for applying a heat exchanger in a drill hole (2) in rock, loose soils or the like for the purpose of heat recovery or storage, achieving a more efficient heat transfer between the defining surface (4)... | 12/29/1987 |
| 4715430 | Environmentally secure and thermally efficient heat sink assembly A heat sink is disclosed for cooling a module having a plurality of chip sites thereon. The heat sink includes a frame member which is made of a material having a coefficient of thermal expansion which is substantially that of the substrate to which it is... | 12/29/1987 |
| 4715431 | Reboiler-condenser with boiling and condensing surfaces enhanced by extrusion The invention relates to a heat exchanger for use as a reboiler-condenser which increases the efficiency of heat transfer between boiling and condensing fluids such as cryogens, e.g. oxygen and nitrogen in an air separation unit. The exchanger has enhance... | 12/29/1987 |
| 4715432 | Air-cooled tube condenser In an air-cooled surface condensor including a plurality of elongated finned heat exchanger tubes arranged in a single row, each tube has a continually increasing cross-sectional area from a front end to a rear end of the tube in the direction of flowing ... | 12/29/1987 |
| 4715433 | Reboiler-condenser with doubly-enhanced plates The invention is a reboiler-condenser which increases the efficiency of heat transfer between boiling and condensing fluids, such as oxygen and nitrogen in air separation or similar cryogenic applications. The exchanger is built up from individual plates,... | 12/29/1987 |
| 4715434 | Fluid treatment pressure vessel with a disposable cartridge and valve therefor The present invention provides an inventive fluid filter-treatment pressure vessel and valve arrangement which allows the fluid filter to be readily isolated from the coolant system. The present invention utilizes a single spool to close off both the inle... | 12/29/1987 |
| 4715435 | Dual pump for two separate fluids with means for heat exchange between the fluids A method and apparatus for pumping and exchanging heat at an accelerated rate between two fluid streams. The apparatus comprises opposite peristaltic pumps moving a separate fluid on their respective side of a linear heat-conductive platen. Each pump cons... | 12/29/1987 |
| 4715436 | Construction of a heat transfer wall of a heat transfer pipe A heat transfer tube has at least a row of projections provided on its inner surface at regular intervals along a spiral curve thereof. The row of projections are formed by plastic deformation of part of the heat transfer tube, which is effected by pressi... | 12/29/1987 |
| 4715437 | Heat exchanger Disclosed is a heat exchanger having a plurality of flat fins disposed in parallel at predetermined intervals and adapted such that the air flows therebetween and a plurality of heat-transfer tubes disposed to intersect at right angles with the plurality ... | 12/29/1987 |
| 4715438 | Staggered radial-fin heat sink device for integrated circuit package A radial fin heat sink whereby a spreader plate supports a series of radial fins which are staggered around a central open cylindrical area designed to receive a flow of air by impingement. The radial fins comprise a pattern of variable lengths which foll... | 12/29/1987 |
| 4715439 | Well cap A covering is provided for the upper extremity of a circular cylindrical casing wall of a well for potable water. The covering supports a pump positioned within the well and provides thermal insulation so that the water will not freeze when pumped from th... | 12/29/1987 |
| 4715440 | Downhole tools A tool for use downhole has an elongate body, arms movably mounted on the body and means for controlling movement of the arms between an operational position and a retracted position. Movement of the arms is controlled by a motor and a transmission, accor... | 12/29/1987 |
| 4715441 | Side pocket mandrel In accordance with an illustrative embodiment of the present invention, a side pocket mandrel includes a tubular main body having an internal bore, a seating section w4elded to one end of said main body and having a main bore and a laterally offset seatin... | 12/29/1987 |
| 4715442 | Apparatus for servicing tubular strings in subterranean wells A tubing trip tool for use in determining the extent of defects in tubular sections of a continuous tubing string used in subterranean oil and gas wells is disclosed. The tubing trip tool is mounted on a surface rig surrounding the tubing string and defec... | 12/29/1987 |
| 4715443 | Baffle system for conducting well treating operations A coiled baffle system, primarily for conducting well treating operations, is disclosed. The baffle system preferably comprises a baffle which is inserted into a tubing within a well bore to segment the tubing into a high pressure conduit and a low pressu... | 12/29/1987 |
| 4715444 | Method for recovery of hydrocarbons A method for recovering hydrocarbons from a subterranean hydrocarbon-containing formation penetrated by at least two wellbores, said method comprising: (a) injecting a gaseous stream into the formation near the bottom of the formation through a first well... | 12/29/1987 |
| 4715445 | Latch and retrieving assembly A latch and retrieving assembly is shown for use with a well tool having an axial bore which includes an external landing shoulder and an annular latch recess which is spaced below the landing shoulder. The assembly includes a mandrel which is inserted in... | 12/29/1987 |
| 4715446 | Device and method for the temporary protection of a working tool or measuring instrument fixed to the end of a drill string The present invention provides a device and method for protecting, by means of a casing, a measuring instrument or a specialzied tool fixed to the end of a drill string. Said drill string has substantially at is end and before said tool a first guide memb... | 12/29/1987 |
| 4715447 | Quick response automatic fire sprinkler head Fire sprinkler head suitable for mounting in a concealed location in the ceiling in a residential dwelling which provides quick and automatic response in the event of a fire. The valve assembly in the sprinkler head is biased to the open mode and is maint... | 12/29/1987 |
| 4715448 | Fire extinguisher outlet head A fire extinguisher outlet head including a sealing plug having a head part that is sheared by an explosive charge upon actuation of the extinguisher head to permit release of extinguishant, whereby the sheared head part is guided along a curved path into... | 12/29/1987 |
| 4715449 | Self-dumping crop shield A crop sheild is connected to the aft ends of a pair of parallel links by a bracket assembly which can pivot to permit the shield to dump trash. The bracket assembly is pivotally connected to the aft end of the lower link and includes a slot slidably rece... | 12/29/1987 |
| 4715450 | Grader blade with casting/insert assembly on leading edge A grader blade has a steel body with a bottom edge incorporating a substrate of air-hardened tool steel casting material assembling a preformed cemented carbide insert in tiered relationship with, and rearwardly of, a casted layer of carbide grit. The fro... | 12/29/1987 |
| 4715451 | Measuring drillstem loading and behavior A drillstem loading and behavior measurement method and system includes spaced apart subs disposed at the upper end of the drillstem and connected to each other and to a power or conventional swivel and having strain gages and accelerometers mounted there... | 12/29/1987 |
| 4715452 | Method of drilling a directonal well bore The invention relates to a method of drilling a directional well bore with a drill string. According to the invention, at least a part of the trajectory of the well bore is drilled with a constant build rate so that the part has substantially a constant c... | 12/29/1987 |
| 4715453 | Drilling deviation control tool A body, functioning as a length of drill string, has an eccentric roller mounted for rotation around the body. The roller and body have cooperating cam surfaces that cause the roller to reciprocate axially when the body rotates relative to the roller. In ... | 12/29/1987 |
| 4715454 | Mechanical directional drilling jar with swivel means A drilling jar is disclosed. The jar has particular application in directional drilling operations and includes a swivel which allows the drilling jar to operate substantially independently of any right hand torque that becomes trapped in the drill string... | 12/29/1987 |
| 4715455 | Drill shoe A drill shoe adapted to fit onto a drill pipe of external diameter de and internal diameter di comprises an externally stepped cutting surface comprising a plurality of steps, the diameters of the steps increasing as they progress aw... | 12/29/1987 |
| 4715456 | Slips for well pipe A hydraulically actuated slip assembly having a slip pivotally connected at its sides by parallel links to the side surfaces of a slip block with slip engaging surfaces which allow the slip to be engaged and disengaged from tubing or pipe and operated wit... | 12/29/1987 |
| 4715457 | Method for fast weighing A method for fast weighing on an electronic scale is disclosed. Periodic samples are taken of the weight of an object placed upon the scale, and succeeding samples are compared for similarity within a given tolerance. The overall range of the scale is div... | 12/29/1987 |
| 4715458 | Beam balance with unequal arms and didder device The sensitivity of a balance beam having unequal arms used to detect and measure phenomenon which exert low energy mechanical forces includes a U-shaped beam area having a horizontal slot therein and a pivot post having a vertical slot which registers wit... | 12/29/1987 |
| 4715459 | Drive for vehicles A vehicle has articulated tracks on each side driven separately by hydraulic gears comprising a hydraulic group coupled to the drive shaft and hydraulic motors driving the tracks. The hydraulic pump group has at least three hydraulic pumps coupled to each... | 12/29/1987 |
| 4715460 | Omnidirectional vehicle base An omnidirectional wheelchair base 7 includes upper 10 and lower 20 flexible base plates held in spaced-apart alignment by a pair of front supports 14 and 16 and a rear support 18. A pair of front wheels 22 and 26 are provided, each mounted on the front s... | 12/29/1987 |
| 4715461 | Electric power steering system for vehicles An electric power steering system for vehicles including a driving control circuit (76, 100, 108) for feeding, in consideration of an output signal (S1, S2) from a steering torque dectection mechanism (77) for detecting steering torq... | 12/29/1987 |
| 4715462 | Electric power assistance steering system The electric power assistance actuating mechanism comprises an input member (12) connected to a sun gear (14) of a planetary gear mechanism (20), with a sleeve member (55) slidably disposed about the input member (12) and keyed for rotation therewith. A c... | 12/29/1987 |
| 4715463 | Electric power steering system for vehicles An electric power steering system (100) for vehicles comprising a drive control circuit (15) for executing a motor drive process (106-111) for feeding an output signal (Va) to an electric motor (11) for supplying auxiliary torque (Ts) to a steering shaft ... | 12/29/1987 |
| 4715464 | Power steering system with hydraulic reaction A power steering system which includes a fluid source that supplies pressure fluid of a constant flow rate, a fluid motor for supplementing manual steering torque, a servo-valve for distributing fluid to the fluid motor, and a reaction device for applying... | 12/29/1987 |
| 4715465 | Body construction for motor scooter vehicles A body construction for a motor scooter vehicle, is supported by a vehicle frame assembly comprising a front frame having a head tube on a front end thereof and a rear frame, and comprises a front cover covering the head tube and a front half portion of t... | 12/29/1987 |
