Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 4809711 | Prefilled ampoule-syringe A prefilled ampoule-syringe comprising an ampoule and an ampoule body having a single open end and a neck located near the single open end, the neck having a smaller transverse inner dimension then said body. A stopper, associated with an external capsule... | 03/07/1989 |
| 4781279 | Control mechanism for a torque converter with bridge clutch A control mechanism for a torque converter with bridge clutch and a lubrication circuit for a hydrodynamic-mechanical combined transmission, wherein the hydraulic operating pressure which charges the torque converter (3) and closes the converter direct cl... | 11/01/1988 |
| 4778046 | Belt conveyor A transporting belt is partially held by a holding belt. The holding belt is rolled up into a tubular shape through which both of the forward and return paths of the transporting belt passes. Both of the belts are supported by a plurality of shape-maintai... | 10/18/1988 |
| 4776452 | Mechanism for the transportation of objects A mechanism for the transportation of objects on an endlessly rotating roller chain (4) of a support structure, which chain moves in or upon a support structure (1), having pallet-like sliding carriages (12) guided in or upon tracks of the support structu... | 10/11/1988 |
| 4776068 | Quiet touch fastener material Silent touch fastener material adapted to releasably engage a mating surface and adapted to produce reduced sound during rapid separation of the touch fastener material from the mating surface. The material comprises a planar backing material having an en... | 10/11/1988 |
| 4776795 | Process for making metal artificial tooth parts The process for making metal artificial tooth parts consists in that an impression of the tooth or jaw to be treated is prepared using an electrically non-conductive material, the inner wall of said impression is coated with a heated low-melting alloy and... | 10/11/1988 |
| 4775310 | Apparatus for making a separable fastener Apparatus for continuously producing an elongated strip-like fastener member is disclosed which facilitates highly efficient formation of the fastener member with a great multiplicity of resiliently flexible hook-like projections. The method comprises the... | 10/04/1988 |
| 4772181 | Bladed rotor assembly and a control system therefor A counterrotatable bladed rotor assembly drivable by a rotatable shaft comprises a leading propeller, a trailing propeller, and a gearbox located axially between the two propellers and enclosed by a non-rotatable casing having an end for attachment to a s... | 09/20/1988 |
| 4772349 | Etching machines for manufacturing printed circuit boards The machine is of the kind comprising an elongate etch chamber, and a conveyor which is arranged to feed p.c.b's through said etch chamber. In accordance with the invention the etch chamber is divided into two spaced sections comprising a first relatively... | 09/20/1988 |
| 4772141 | Dot matrix printhead pin driver and method of assembly A high speed print pin driver for a dot matrix printer. A U-shaped core having a pair of parallel spaced legs is formed of a plurality of laminations of silicon iron. A rectangular magnetic field-forming coil is on one of the legs. A magnetic flux plate o... | 09/20/1988 |
| 4771929 | Focused convection reflow soldering method and apparatus An improved solder reflow system for mass joining with solder electrical and electronic components affixed on a circuit board is provided. The system employs a combination of IR heating, recirculating forced hot air heating, and focused forced hot air hea... | 09/20/1988 |
| 4772246 | Downhole motor drive shaft universal joint assembly A universal joint assembly comprises a first rotary member having a first longitudinal axis and an outer tubular portion at one end thereof concentrically disposed about the axis, a second rotary member having a second longitudinal axis and an inner tubul... | 09/20/1988 |
| 4770292 | Hanging nesting storage containers A set of hanging nesting storage containers. Each of the containers comprises a square box having a planar base with top and bottom surfaces and four sides extending upward perpendicular to the top surface. A rectangular fastening lip extends outward from... | 09/13/1988 |
| 4768398 | Continuously-variable transmission A driveline for an engined vehicle, comprises a continuously-variable ratio transmission (1) having an input, adapted to be driven by the engine, and an output (3) and first and second epicyclic gears (4, 10) for providing a high and low regime. The plane... | 09/06/1988 |
| 4769142 | Amphibious oil spill absorbing machine An amphibious self-contained oil spill absorbing machine having a chassis supported and propelled on land by front and rear rollers. The front roller has a covering of oil absorbing material and works against a pinch roller to squeeze oil absorbed by the ... | 09/06/1988 |
| 4765648 | Suspension system for a motor vehicle The system comprises a spring between the vehicle body and each wheel, a shock absorber associated with each spring and which is switchable electromagnetically between soft and hard settings, one or more accelerometers measuring vertical acceleration of t... | 08/23/1988 |
| 4765993 | Preparation of alcohol-free barley malt-based beverage A method for preparing an alcohol-free barley malt-based beverage of reduced caloric content is described. In a preferred embodiment, the method consists of adding to a conventionally procssed Malta beverage, following boiling, cooling and filtering, but ... | 08/23/1988 |
| 4763778 | Easily changeable gripping head for blow-molding pallet assembly An easily replaceable collet assembly for use in a movable pallet containing a plurality of stations for releasably gripping and rotating a plurality of resin preforms as they are moved through a blow molding process for providing rapid reconfiguration of... | 08/16/1988 |
| 4763798 | Stacking, pivoting, wall storage unit A stacking, pivoting, wall storage unit with removable storage containers, shelves, and the like comprising a vertical mounting member adapted for mounting to a wall or the like. A vertical connecting member is hingedly carried by the mounting member for ... | 08/16/1988 |
| 4759634 | Beverage preparing and dispensing apparatus Beverage preparing and dispensing apparatus, in which powdered ingredients are pre-placed on the bottom of a drinking vessel (14). The feed conduit (32,34) through which liquid is dispensed is caused to move as the liquid is dispensed, so as to agitate th... | 07/26/1988 |
| 4757353 | Apparatus for setting regions to be trimmed on an original picture in a photographic printer An apparatus for setting regions to be trimmed on an original picture in a photographing printer which produces a trimmed reproduction picture image comprises a base on which a projecting lens for projecting the original picture on the surface of a photos... | 07/12/1988 |
| 4756047 | Apparatus for removing organic substance from substrate An apparatus for removing organic substances from a substrate, including ultraviolet lamps provided above a horizontal hot plate on which a substrate is placed; an ozone blow-off pipe which blows ozone downward, provided at a position appropriately distan... | 07/12/1988 |
| 4755033 | Exterior rearview mirror for a motor vehicle An exterior rearview mirror for a motor vehicle has a housing mounted on a base member by means of a ball-and-socket joint comprising a socket formed in the base member and a convex member attached to the housing. The socket comprises the concave inner su... | 07/05/1988 |
| 4753331 | Spring mechanism on a clutch A spring apparatus for a positive engagement clutch in which a sliding sleeve is forced into and out of locked engagement with a drive shaft by a spring mechanism. The spring mechanism includes a shift fork containing sliding blocks which engages with a p... | 06/28/1988 |
| 4753714 | Method of optimizing flow pattern and increasing signal-to-noise ratios in electrochemical flow through sensors In electrochemical flow through sensors comprising at least one cell for the passage of a fluid for analysis therethrough, the method of optimizing the flow pattern and signal-to-noise ratio comprising the steps of loading the cell under high pressure wit... | 06/28/1988 |
| 4750781 | Vehicle opening roof An opening roof for a motor vehicle comprises a frame mounted in an opening in a vehicle roof. A trim member is attached to the bottom of the frame and has an outwardly projecting flap which covers the adjacent edge of the vehicle roof trim. A portion of ... | 06/14/1988 |
| 4749164 | Shock and vibration isolation locking system In a shock and vibration isolation system wherein a device having a top, bottom, sides, front and back is mounted on moving isolators between and in spaced relationship to top and bottom members, front operable locking apparatus for releasably holding the... | 06/07/1988 |
| 4748066 | Fire resistant materials The production of fire resistant articles is described comprising a normally combustible carrier element having applied thereto sodium silicate which is heat foamable to produce a further element capable of resisting the passage of fire and/or heat theret... | 05/31/1988 |
| 4745982 | Adjustable bent sub An adjustable bent sub for use in directional drilling in earth formations comprises a first body member having a first body portion defining a first primary axis and a second body portion defining a first secondary axis disposed at a first offset angle w... | 05/24/1988 |
| 4746857 | Probing apparatus for measuring electrical characteristics of semiconductor device formed on wafer A probing apparatus is used to measure electrical characteristics of a semiconductor device formed on a wafer. The apparatus includes means for holding the wafer in a vertical or slightly leaned position on a frame, a contact needle, three-directional dri... | 05/24/1988 |
| 4742278 | Single connection gas discharge display and driver A new method and apparatus for driving a neon display tube or the like. The tube, containing an ionizable gas, has only a single cathode element at one end in contact with the gas. A power source connected to ionize the gas and cause illumination thereof ... | 05/03/1988 |
| 4741500 | Process for automatic feedback controlled cable winding During the various phases of fabrication of cables, tubes or similar products, it is necessary to load them onto spools. In certain cases, the winding must be particularly carefully done and have only close-packed windings, without overlap. The process an... | 05/03/1988 |
| 4741737 | Prefilled ampoule-syringe A prefilled ampoule-syringe including an ampoule body having a smaller inner dimension than the body and a stopper means associated with an external capsule for closing the ampoule. The stopper is provided with an internal conduit having at least one tran... | 05/03/1988 |
| 4740066 | Exterior rear view mirrors for vehicles An exterior mirror for a vehicle comprises a base member attached to the vehicle body, first pivotal engagement means mounted on an arm secured to the base member so as to project laterally in the opposite direction to the mounting face, a housing for a r... | 04/26/1988 |
| 4739695 | Fluid-pressure-operable actuator systems A fluid-pressure-operable actuator system, for operating an aerodynamic control surface, including an actuator comprising a casing, piston and output member. Annular sealing means carried by the piston sealingly engages with the casing while annular seali... | 04/26/1988 |
| 4738458 | Steerable wheel suspension system A steerable wheel suspension system comprising: a hub suspended from the vehicle body by a spring and damper strut system, a steering arm extending outwards and forwards from a steering rack positioned relatively low down and behind the engine to a ball j... | 04/19/1988 |
| 4733577 | Electromagnetically actuated locking clutch for differential gears of motor vehicles An electromagnetically actuated locking clutch for differential gears of motor vehicles having two concentrically disposed toroidal coils (8, 21) firm on a housing, one for a non-positive disk clutch (14) and the other for a positive claw clutch (26) conc... | 03/29/1988 |
| 4732511 | Mine roof supports A mine roof support includes a pair of substantially-parallel floor-engaging members, a roof engageable member, a shield pivotally-connected to the floor-engaging members, by at least one pair of parallel links, and pivotally-connected to the roof-engagea... | 03/22/1988 |
| 4728067 | Composite leg-support A composite leg-support with high loadability having a tubular vertical shank (4) and legs (1) which are releasably affixed to the shank and extending essentially horizontally and radially therefrom. The ends of the legs (1) pointing toward the center of ... | 03/01/1988 |
| 4726975 | Method and apparatus for adapting separable fasteners for attachment to other objects An improvement for attaching fastener strips to other objects wherein a strip of fastener material is formed into the surface of urethane foam or the like during molding in a mold. The fastener material comprises a backing strip having an outer surface ad... | 02/23/1988 |
