Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5036628 | Seal assembly for a wafer grinding machine A seal assembly is mounted within a grinding machine to separate a grinding wheel from the main portions of a wafer being ground. The seal assembly has a pair of free edges which are disposed to define a V-shaped gap through which the peripheral edge of t... | 08/06/1991 |
| 5036629 | Method for preparing a magnetic recording medium A method for preparing a magnetic recording medium comprising a non-magnetic support having thereon a magnetic layer comprised of ferromagnetic particles of hexagonal crystalline ferrite which comprises smoothing the surface of the magnetic layer and ther... | 08/06/1991 |
| 5036630 | Radial uniformity control of semiconductor wafer polishing Disclosed is an improved method of polishing a semiconductor wafer, which involves mounting the wafer to a wafer carrier comprising at least two materials having different coefficients of thermal expansion and regulating the temperature of the carrier, to... | 08/06/1991 |
| 5036631 | Sand blast nozzle A nozzle for a sandblasting device having a substantially cylindrical shape with an internal longitudinal compartment covered with a hard material lining member. The compartment extends from the inlet end of the housing with a frusto-conical shape and ter... | 08/06/1991 |
| 5036632 | Pressure relief panel assembly A pressure relief panel assembly including a single rupture panel is provided. The rupture panel includes a domed portion connected to a peripheral flat flange portion and has at least one slit formed therein defining a hinged blow-out part. The hinged bl... | 08/06/1991 |
| 5036633 | Variable damping and stiffness structure A variable damping and stiffness structure is disclosed, which includes a variable damping device provided between posts, beams and braces of a structure or braces serving as variable stiffness elements and interconnecting a frame body and the variable st... | 08/06/1991 |
| 5036634 | Knock down shelter and storage structure The knock down shelter and storage structure of the present invention includes a base frame assembly formed by interlocking beams. A vertical wall assembly engages the base frame and includes a plurality of corner uprights. A plurality of intermediate upr... | 08/06/1991 |
| 5036635 | Building system using saddle zonogons and saddle zonohedra A building system composed of space-filling convex and non-convex saddle zonogons which fit together periodically and non-periodically into a variety of orderly and irregular looking space structures including saddle zonohedra, single-, double- and multi-... | 08/06/1991 |
| 5036636 | Multiple size vent-pipe roof flashing A flashing including an elastomeric collar with an inner surface and an outer surface and adapted to seal against more than one size of a vent pipe passing vertically through a central opening in the collar. The elastomeric collar has a circular base adap... | 08/06/1991 |
| 5036637 | Rolled metal building system An improved mullion for a building system. The mullion has a plurality of peripheral wall and web sections defining a load bearing structure adapted for supporting the panel in sealed engagement therewith. The mullion is roll formed from thin gauged metal... | 08/06/1991 |
| 5036638 | Service building and the structural components thereof A service building (10) having a base assembly (20) formed with a perimeter support portion (21) and a floor portion (22). The perimeter support portion (21) utilizes weight bearing side rails (23) with one or more transverse, weight supporting beam means... | 08/06/1991 |
| 5036639 | Plate for false floors A load-bearing plate for false floors includes a plurality of mutually parallel and spaced apart approximately C-shaped metal profiles. The profiles have open bottoms and having tops with parallel, transversely extending recesses formed therein. Bolts are... | 08/06/1991 |
| 5036640 | Window A window comprising: at least a pair of left and right connection attachments for mounting a window frame thereof which are fixedly secured to two mutually adjacent portions of an external wall of a building; at least a pair of left and right pivotable me... | 08/06/1991 |
| 5036641 | Metallic structure A building structure has a plurality of tapered beams interlocked with each other so that their upper portions form an upper sheet and their lower portions form a lower sheet. Each beam portion is made from a plurality of standard tubular elements, the up... | 08/06/1991 |
| 5036642 | Bale wrapping apparatus for round balers Apparatus for wrapping cylindrical bales of crop material formed in a bale forming chamber of an agricultural baler with sheet material such as net or plastic film. The apparatus includes a dispensing mechanism which is movable from a retracted position t... | 08/06/1991 |
| 5036643 | Form, fill, seal and separate packaging machine for reclosable containers including means for applying zipper to web An improved form, fill, seal and separate packaging machine for reclosable containers is accomplished by a plurality of stations disposed along a path of travel of a thermoplastic web including means to attach a pair of mated, resealable closure strips to... | 08/06/1991 |
| 5036644 | Packaging sleever assembly A continuous packaging sleever assembly and process for wrapping packaging sleeves about product groups. The assembly has a frame structure with a generally horizontal working surface, a transfer conveyor to move the product containers across the working ... | 08/06/1991 |
| 5036645 | Method of making a recloseable package A flexible recloseable package wherein the enclosed product is supported on a rigid backing board and the package includes a recloseable seal strip mounted on an access edge of the backing board. Two sheets of packaging film surround the backing board and... | 08/06/1991 |
| 5036646 | Method of packaging an integrated circuit in an inert gas The present invention relates to a container for an integrated circuit wafer comprising a tray-shaped member having a recess and a complimentary sheet member sized to attach to and cover said recess, at least one of said members being made from a material... | 08/06/1991 |
| 5036647 | Tag banding apparatus There is disclosed an improved tag banding apparatus which conveys a tag to a stop position, positions tags one-by-one and accumulates the tags in a stack, and bands the stacks in a connected series.... | 08/06/1991 |
| 5036648 | Cutterhead for a vegetation cutter apparatus The invention relates to a cutterhead for vegetation cutter apparatus and has as its object to configure the cutterhead so that the cutterhead as a unit can be built so as to be overall constructively small and reduce wear. The cutterhead controls the spo... | 08/06/1991 |
| 5036649 | Cotton conveying structure for a cotton harvester A cotton conveying structure for a laterally movable cotton harvesting unit of a cotton harvester. The cotton conveying structure comprises a cotton receiving assembly and a duct structure. The cotton receiving assembly vertically moves with and is inhibi... | 08/06/1991 |
| 5036650 | Material collection system A front mount mower is provided with a side-mounted material collection system including a frame which is supported on a caster wheel. A support shaft is coupled to right front wheel of the mower vehicle by means of an adapter hub held in place by the whe... | 08/06/1991 |
| 5036651 | Dethatching apparatus A grass dethatching apparatus which includes a frame adapted for mounting the apparatus on a prime mover vehicle. The frame supports a drum housing which defines a thatch discharge opening in the upper forward side thereof. The drum housing carries a pivo... | 08/06/1991 |
| 5036652 | Self-propelled harvester A self-propelled harvester, in particular for green fodder, comprises a cutter bar, an auger, a conveyor belt, a first crop conditioning device, a transport belt, a buffer space, a dosing roller, a second crop conditioning device, and a depositing belt fo... | 08/06/1991 |
| 5036653 | Apparatus and method for harvesting crops The apparatus for harvesting crops, particularly seed crops, comprises a mobile support structure 20 and a crop stripping device in the form of a rotor 30, which may be attached to height adjustable arms and is driven by drive means 22. The rotor 30 carri... | 08/06/1991 |
| 5036654 | Replaceable cutting blade for rotary lawn mower Removeable cutters are mounted at each end of a rotary lawn mower blade, which cutters can be removed and reinstalled with replacements easily and quickly without the use of tools. The replaceable cutters are each held in place by a positive locking arran... | 08/06/1991 |
| 5036655 | Replacement roller and turf groomer A lawn or turf aerating, dethatching, and grooming apparatus which derives the power needed to perform these functions from a movement of the apparatus against the lawn or turf surface that is desired to be affected by the apparatus. The apparatus is adap... | 08/06/1991 |
| 5036656 | Apparatus for block changing in a ring spinning machine An apparatus for carrying out a block-change in a ring spinning machine, in which a block of roving bobbins which each supply an associated spinning station are changed together when the rovings wound on the bobbins run out. Preferably, more than one bloc... | 08/06/1991 |
| 5036657 | Dual manifold fuel system A dual manifold fuel supply system for the combustor of gas generator in a turbofan engine wherein alternating circumferentially aligned fuel injectors are alternately supplied with fuel by a first or second fuel manifold. Fuel flow to both manifolds are ... | 08/06/1991 |
| 5036658 | Pressure relief device for solid propellant motors subjected to high external temperatures A rocket motor that has a solid propellant with closure means that is secd to the rocket motor housing by heat responsive means that melts before the solid propellant ignites to prevent the rocket motor from becoming propulsive when subjected to excessiv... | 08/06/1991 |
| 5036659 | Swash plate type pump with flow path through cavity containing swash plate Overheating of hydraulic fluid in a hydraulic motor system subject to aiding loads can be avoided without paying a weight or volume penalty by providing a return port (64) adapted to be connected to the system return (22) in fluid communication with a cav... | 08/06/1991 |
| 5036660 | Dual actuation harness fitting release Aviator harness fittings are pneutically actuated by a central device including a pressurized gas cartridge. A firing pin may mechanically pierce the cartridge or automatic ballistic actuation of the firing pin may be accomplished by SEA WARS gas-generati... | 08/06/1991 |
| 5036661 | Regulated level accumulator for liquid under high pressure The accumulator comprises a vessel which is in communication with a hydraulic circuit and which contains a liquid occupying a portion of the space inside the vessel. The level of the liquid contained in the vessel is regulated by controlling the volume of... | 08/06/1991 |
| 5036662 | Inline partial float A float attachment for hydraulic systems, such as those used in controlling dozer blades, front end loaders, snow plow blades and the like where the blade, bucket or the like is controlled with a double acting cylinder. The float apparatus includes a floa... | 08/06/1991 |
| 5036663 | Air supply control systems for internal combustion engines An air supply control system for an internal combustion engine comprises first and second turbosuperchargers, an exhaust cutoff valve operative to open and close one of separated exhaust passages in which a turbine of the second turbosupercharger is dispo... | 08/06/1991 |
| 5036664 | Fluid pressure actuator with removable piston and cartridge unit A fluid pressure actuator according to the invention is suitable for use as a master cylinder for a vehicle brake or clutch system. The actuator includes a housing having a bore extending therethrough and at least a primary piston movably disposed within ... | 08/06/1991 |
| 5036665 | Hydraulic brake booster The hydraulic brake booster (12) of the present invention comprises a full power hydraulic brake booster (12) that provides false travel during full power operation and improved pedal feel during manual operation. The booster (10) has a housing (24) with ... | 08/06/1991 |
| 5036666 | Stable position bleed valve with O-ring detent The bleed valve (22) especially for a hydraulic brake circuit, comprises a fluid reservoir (20), a hydraulic motor (26) and a mechanism for putting the fluid under pressure (24), and has a first port (42) connected to the motor (26) and to the mechanism (... | 08/06/1991 |
| 5036667 | Fluid power engine A fluid power engine is disclosed. A pair of axially aligned and opposed combustion pistons oscillate in a pair of opposed cylinders. The pistons are connected to each other by a common axial shaft. A fluid power piston is adapted to the shaft and oscilla... | 08/06/1991 |
