...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 4578215 | Electrical conductivity-enhancing and protecting material A material for enhancing the conductivity and protecting electrical contacts, the material having two basic components. The first basic component normally serves to limit corrosion between the contacts and to suspend and suitably distribute the second, or... | 03/25/1986 |
| 4576170 | Heart monitor and defibrillator device A heart monitor and defibrillator device, which can be worn by high risk patients with only minimal interference with normal daily activities, in which one pocket-size unit contains a heart monitor and microprocessor and a second pocket-size unit contains... | 03/18/1986 |
| 4575265 | Seal for shaft bearings A seal for a bearing having a housing with an opening therein for receiving a shaft in which a bearing assembly is mounted in the housing and has an inner race for receiving the shaft. A seal consisting of a ring having a radially extending, outwardly fac... | 03/11/1986 |
| 4568453 | Apparatus and method for removing dust from particulate material Apparatus and method for removing dust from particulate material, utilizing a tower or column having a passage with a series of baffles on opposite sides over which the particulate material cascades while air is drawn across the flow path of the material ... | 02/04/1986 |
| 4567693 | Microtome knife sharpening instrument An instrument for sharpening microtome knives and similar articles, having a honing mechanism and a deburring or stropping mechanism, arranged on a housing which encloses motors for driving the mechanisms. The knife is honed against a stone, which is moun... | 02/04/1986 |
| 4553335 | Shaft alignment device A shaft alignment device for use in aligning two opposed, rotatable shafts connected by a shaft coupling is disclosed, having magnetic base portions adaptable for mounting on the shafts, hubs, or on auxiliary structures secured to the shafts or hubs. The ... | 11/19/1985 |
| 4545225 | Latch and lock assembly A latch and lock assembly for use with suitcases, briefcases and the like having a lower member secured to the case and an upper member secured to the lower member and being axially slidable relative to the lower member for latching and unlatching the cas... | 10/08/1985 |
| 4537446 | Safety seat A safety seat assembly for use with industrial vehicles, such as fork lift trucks, that employs both upper and lower body restraints to prevent the ejection of the operator from the vehicle cab area in the event of a lateral overturn. The lower body restr... | 08/27/1985 |
| 4537148 | Package of litter material for cats and other small animals A package of litter for small animals, having two horizontally disposed layers of particulate, liquid absorbent material, the lower layer of which is of relatively light particulate material of organic composition, containing an odor suppressant therein, ... | 08/27/1985 |
| 4536170 | Elastomeric shear shaft coupling An elastomeric shear shaft coupling is disclosed for connecting two rotatable shafts in end-to-end relationship. The coupling includes hubs for mounting on the opposed ends of the shafts and a flexible element extending between the opposed hubs. Clamping ... | 08/20/1985 |
| 4534114 | Coupling alignment system A coupling alignment system for use in aligning coupled, rotatable shaft members. The system includes coupling hubs mounted on the opposed shafts and modified to receive bracket members. A pivotally mounted beam extends from one bracket member to the oppo... | 08/13/1985 |
| 4531845 | Bearing lubrication device A bearing lubrication device for use in ring-oiled journal bearings and the like in which a generally circular ring member is disposed around the rotatable shaft in the bearing assembly and has a circumferential groove in its inner surface. A cantilevered... | 07/30/1985 |
| 4530181 | Attachment device for an auxiliary fishing line A device for attaching an auxiliary fishing line to a primary fishing line, for use while trolling, with the primary fishing line connected to the ball of a downrigger assembly. The auxiliary line is slidably mounted on the primary line and the device is ... | 07/23/1985 |
| 4526138 | Fluid injector for internal combustion engine A fluid injector for internal combustion engines in which the fluid flow to the engine is indicated in the driver's compartment and in which a mixing chamber in the compartment communicates with a primary vacuum line of the engine and with a fluid reservo... | 07/02/1985 |
| 4525878 | Musical hat, cap or similar head covering A musical hat, cap or similar head covering is disclosed, having a visor portion with a compartment formed therein near the frontal portion of the visor. A musical device is disposed in the compartment and includes a switch for activating the musical devi... | 07/02/1985 |
| 4525094 | Powdered metal, flanged bushing for securing machine elements to shafts A split, circular flanged bushing for securing driving or driven elements such as sheaves, pulleys, and the like to a rotatable shaft, having an integrally formed key in the center opening of the bushing for insertion in a corresponding keyway in the shaf... | 06/25/1985 |
| 4520709 | Rimless drum structure with tuning device A rimless drum structure in which a drumhead has a membrane attached to an outer ring and an adjustment ring is disposed beneath the membrane within the outer ring. Tuning devices are spaced around the rings and are adjustable to urge the inner ring again... | 06/04/1985 |
| 4519677 | Power-operated vehicle mirror A power-operated, exterior rear view mirror, normally mounted on each side of large or long vehicles, having motor assemblies within the mirror housing which provide adjustment capabilities in both visual planes, vertical and horizontal. The mirror can be... | 05/28/1985 |
| 4509884 | Injection nozzle for adhesive materials A nozzle for injecting adhesive materials into cracks in concrete, mortared joints in brick or stone walls, in timber, or in similar materials, the nozzle having a body with a center channel for conducting the resin from a suitable pump into the cracked s... | 04/09/1985 |
| 4505070 | Window blind A window blind for controlling the amount of light admitted through a window, door, skylight, or the like. The blind is secured at the top and bottom of the window, making it suitable for use with all types of windows in buildings or vehicles, regardless ... | 03/19/1985 |
| 4503894 | Wood splitting device A wood splitting device for mounting on a vehicle, including a hydraulically operated log splitter. The wood splitter is capable of being pivoted from a horizontal position along one side of the vehicle to a vertical position at the rear of the vehicle or... | 03/12/1985 |
| 4503646 | Bulk storage building structure A bulk storage building structure for storing grain, dried clay and other granular products in which the normally encountered lateral pressure exerted on the walls of the structure is minimized by the spaced, slatted configuration of the walls which accom... | 03/12/1985 |
| 4500215 | Ice bearing assembly A bearing assembly in which the bearing surface is composed of ice, and lubrication is provided by the frictional action of a shaft or other supported member against the frozen surface, which liberates a thin film of liquid. A collar, composed of a synthe... | 02/19/1985 |
| 4499409 | Plugging defeat system for electric motors A plugging defeat system for use with a reversible electric motor having a motor shaft. A slipping clutch-type mechanism is used to sense the speed and direction of the motor and to selectively open forward or reverse enabling switches when the motor reac... | 02/12/1985 |
| 4494889 | Shaft bushing and hub assembly A bushing and hub assembly for mounting sheaves, sprockets, gears, couplings and similar machine elements on a shaft, wherein two types of tapered bushings are used, the bushings having bodies of the same taper used with a single hub which is compatible w... | 01/22/1985 |
| 4493468 | Adjustable pipe fastener A pipe fastener for securing pipes along walls, ceilings or the like, having top and bottom members each having two generally broad, flat sides extending at approximately forty-five degree angles from a middle portion and a base portion, respectively. The... | 01/15/1985 |
| 4486906 | Water-saving flush valve A flush valve assembly for use in the water storage tank of a toilet, the closing speed of which can be controlled and adjusted to seal the storage tank as soon as the trap in the toilet bowl has been refilled, thereby preventing water loss from an overfi... | 12/11/1984 |
| 4480578 | Bracket for attaching demountable parts to vehicles and the like A wheel and mounting bracket assembly for boats and the like in which the wheel support has a vertically positioned shaft-like strut with a pair of spaced pins extending laterally therefrom, and a bracket having a body with side walls forming a generally ... | 11/06/1984 |
| 4467532 | Apparatus and process for drying lumber An apparatus and process for drying lumber under vacuum conditions using a drying vessel operationally connected to a sump which collects the extracted moisture. Vaccum conditions are maintained in the vessel and in the sump within the range of 10,000 to ... | 08/28/1984 |
| 4464016 | Power-adjusted mirror with motor on housing and offset center wheel A power-adjusted exterior rear-view mirror for large or long vehicles, having a motor and a remote control switch which permits the driver of the vehicle to adjust the mirror while seated in the driver's seat. The mirror can be mounted on the vehicle usin... | 08/07/1984 |
| 4462782 | Injection sleeve molding machine An injection sleeve molding machine having a rubber injection section and a sleeve molding section, in which the sleeve molding section includes a barrel with a mold cavity for receiving uncured rubber material, and two mandrels having a forward and rearw... | 07/31/1984 |
| 4463332 | Adjustable, rectilinear motion proportional solenoid A rectilinear motion proportional solenoid which exhibits linear output motion that is linearly proportional to the applied electrical current input. The solenoid has an adjustment mechanism which is external to the working components of the solenoid for ... | 07/31/1984 |
| 4448151 | Cat box filler system and method A cat box filler system in which two layers of litter are provided in the container in which the material is shipped and sold. The container is provided with a place to be opened when the filler material is to be discharged in a cat box. The layer in the ... | 05/15/1984 |
| 4443205 | Gear type shaft coupling A gear coupling for a pair of rotatable shafts disposed in end-to-end relation, in which a pair of hubs is mounted on the shafts and sleeves are secured to the inboard side of the hubs and contain internal teeth. A spacer extends between the two sleeves a... | 04/17/1984 |
| 4434897 | Clothes drying rack A clothes drying rack having a vertically elongated cabinet with a rack set disposed in the upper end thereof moveable from a vertical position in the cabinet to a horizontal position extending therefrom. The rack set is disposed in the upper end of said ... | 03/06/1984 |
| 4425102 | Variable speed belt drive A variable speed belt drive having a sheave with an axially moveable flange connected to the drive shaft by a flexible element which performs the function of transmitting the torque from the shaft to the axially moveable flange, and which defines a fluid ... | 01/10/1984 |
| 4421498 | Modular sheave A modular V-belt sheave which, in a specific embodiment, has two end modules and a hub connected to at least one of the modules and may have one or more intermediate modules and the modules are secured together by a plurality of tying members extending th... | 12/20/1983 |
| 4418796 | Transmission and disc brake A brake system for a vehicle in which a pair of brake discs are mounted on two opposed shafts in alignment with one another and pucks are disposed on opposite sides of each of said discs. The pucks between the discs are supported by relatively movable sup... | 12/06/1983 |
| 4419569 | Modular heating cable assembly A modular heating cable assembly having two cold wires extending the length thereof and a resistance heating wire interconnecting the two wires. The portion of the two wires anterior to the heating wire forms a cold lead, and an element for interrupting t... | 12/06/1983 |
| 4411590 | Control system for variable speed belt drives A control system primarily for variable speed drives having input and output sheaves with axially movable flanges and a belt interconnecting the sheaves, in which a fluid actuating mechanism moves the flange on the input sheave to vary the pitch thereof, ... | 10/25/1983 |