Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6131804 | Reclosable fitment with pull off liner film A container closure has a generally planar base (2) with an aperture (5) therein which is adapted to be mounted on a wall of a container to surround an aperture therein with the two apertures in register. A flap (3) is connected to the base for movement b... | 10/17/2000 |
| 6126223 | Tailgate lift assembly A tailgate lift assembly is described herein wherein the assembly is comprised of a housing which has retained therein a spring, the spring being connected to the tailgate by a cable. The cable extends from the spring through at least one roller for corre... | 10/03/2000 |
| 6125499 | High flow steam carpet cleaner A lightweight portable steam carpet cleaning machine comprised of two main structures, a handle assembly and the recovery tank. Connected to the machine are two hoses, the supply hose which supplies clear water to the machine and the discharge hose which ... | 10/03/2000 |
| 6123447 | Blending trolley for forming vertical columns of tobacco in an intermediate reservoir The invention relates to a method and a device for feeding layers of tobacco to an intermediate reservoir, including feeding a continual falling, horizontal shifting stream of tobacco to the intermediate reservoir, the falling stream of tobacco being defl... | 09/26/2000 |
| 6105447 | Eccentric crank with continuously adjustable throw The invention provides an eccentric wherein the amplitude of reciprocation, or throw, is continuously variable, during operation, from zero to a maximum. This represents an improvement over adjustable eccentric devices in the prior art insofar as the conv... | 08/22/2000 |
| 6099288 | Pellet forming extrusion apparatus A pellet-forming apparatus is provided for extruding high moisture materials in a low-pressure extrusion apparatus having an extruding cylinder and a cooperative extruding rotor. The rotor extends axially through the elongated cylinder and is formed with ... | 08/08/2000 |
| 6070278 | Hydraulic powered chair lift A hydraulic chair lift for a pool or other body of water. The present hydraulic chair lift utilizes standard faucet water pressure to raise and lower the seat. The entire chair lift assembly is rotatable about a single point for easy loading and unloading... | 06/06/2000 |
| 6062238 | Method for self cleaning of tobacco drying apparatus After several drying cycles in a pneumatically conveying tobacco drying apparatus, the interior of the drying apparatus becomes built-up with tobacco including casings and other additives thereby causing decreased flow of air entrained with tobacco as wel... | 05/16/2000 |
| 6058922 | Grinding blade for trowel machine The present invention is directed towards an attachment to a trowel machine. The trowel machine attachment converts the trowel machine blade to a grinding blade and allows the trowel machine to become a grinding machine in order to smooth the concrete sur... | 05/09/2000 |
| 6050721 | Mixing machine for plasticizable compounds The present invention is for a mixing machine for plasticizable compounds which attaches directly to a molding machine and which is used to color a base material with a color additive. The apparatus receives a base material and color additive for mixing a... | 04/18/2000 |
| 6035908 | Wide mouth funnel The present apparatus relates to a funnel which is used to transfer food or liquid into receptacles, such as reclosable freezer or storage bags. The funnel is comprised of an ovalized wide mouth opening and a long neck with a plurality of legs which are r... | 03/14/2000 |
| 6007129 | Long handled tool holder An apparatus for holding and restraining long handled tools is described. The tool box is comprised of a top wall, two side walls and a bottom wall within which separate compartments are formed by slidable shelves. The shelves may further compartmentalize... | 12/28/1999 |
| 6006438 | Automated feed assembly for use with a pack seal tester The present invention relates to an automated feed assembly for use with a pack seal tester. The automated feed assembly receives a plurality of cigarette packs into a testing column for advancement control of the packs to the tester. The automated feed a... | 12/28/1999 |
| 6000566 | Tamper indicating bridged fitment A tamper indicating bridged fitment is provided having an annular flange and an upwardly extending cylindrical side wall. Said fitment has a tamper indicating feature which is comprised of a bridge connected to the top edge of said upwardly extending cyli... | 12/14/1999 |
| 5988412 | Safety closure having an internal locking lug A cap having a top wall and at least one circumferentially extending sidewall having an inner surface with internal threads therealong and a terminating bottom edge of the sidewall defining an open end opposite to the top wall. The terminating edge is pro... | 11/23/1999 |
| 5982838 | Method and portable apparatus for the detection of substances by use of neutron irradiation The present invention relates to a method and portable apparatus which is used to detect substances, such as explosives and drugs, by neutron irradiation. The apparatus has a portable neutron generating probe and corresponding controllers and data collect... | 11/09/1999 |
| 5947350 | Container-holding device A container-holding device removably attached to an external, rigid support, such as a riding saddle for a horse, wherein the container-holding device prevents spillage of a container held therein in the event that the external, rigid support experiences ... | 09/07/1999 |
| 5927527 | Squeeze and turn child resistant closure with tamper indicating band The present closure and container combination comprises a child resistant squeeze and turn closure having a tamper indicating band which is removed from the closure after the first removal of the closure from the container. The closure has dual squeeze pa... | 07/27/1999 |
| 5919067 | Mounting bracket for depth finder on a trolling motor A mounting bracket for attachment of a depth finder view screen to a trolling motor column shaft is described. The attachment bracket is a combinable sleeve which fits over the column shaft and has an accurate support arm extending therefrom. The support ... | 07/06/1999 |
| 5904476 | Chafing dish fuel canister with snuffing device A chafing dish fuel canister is provided having a snuffing device attached thereto. The chafing dish canister has inserted through the lid an inner sleeve which is securely fitted thereon. The wick extends upwards through the inner sleeve from the caniste... | 05/18/1999 |
| 5897520 | Unitary dorsal night splint The Dorsal Night Splint orthosis for human wearers includes a substantially rigid upright member consisting of an upper portion and a lower portion. When placed upon the foot of the wearer, said upper portion proceeds downward from approximately beneath t... | 04/27/1999 |
| 5836903 | Ankle brace with adjustable strap positioning fastener An ankle brace with an adjustable strap positioning fastener for protecting and exercising an injured ankle or for use with other orthopedic device which requires wrapping. The adjustable strap positioning fastener includes a multi-positionable slot for c... | 11/17/1998 |
| 5806531 | Method and apparatus for automatic and continuous pneumatic feeding of tobacco A continuous pneumatic tobacco conveyance system is described which automatically controls the rate at which tobacco is fed into the conveyance system and automatically controls the velocity of the tobacco which is pneumatically conveyed. The system utili... | 09/15/1998 |
| 5778573 | Two-way swivel bracket with ironing board assembly A portable ironing board having a two-way swivel bracket assembly. The ironing board may be affixed to a dryer and stored in the space between a washing machine and dryer and is attached to the dryer by means of an attachment assembly. The attachment asse... | 07/14/1998 |
| 5755238 | Method and apparatus for low residence time redrying of tobacco A method and apparatus is given for a low residence time redrying of strip tobacco. The apparatus thoroughly and evenly dries and cools the tobacco consistently through the entire tobacco bed as it passes through the dryer and cooler. The apparatus utiliz... | 05/26/1998 |
| 5727279 | Apparatus for grading wet concrete A concrete grading tool for grading, leveling and sealing wet concrete is shown and described. The grading tool is comprised of a grading head which is made of a lightweight material such as aluminum and has a long handle extending outward therefrom. The ... | 03/17/1998 |
| 5720306 | Tobacco drying apparatus A high humidity drying apparatus for cut tobacco is shown. The apparatus has a furnace which heats circulated air within the apparatus. The air is forced through a first arcuate elbow which has a tobacco air inlet located thereon for inserting the cut tob... | 02/24/1998 |
| 5692333 | Back loading framing system A multi-piece back loading framing system is disclosed. Each frame member has bevelled ends for forming mitered joints, a front face and side portion. The frame sections have a first hardware receiving channel directly below the front face and a second ha... | 12/02/1997 |
| 5682400 | Supersonic and subsonic laser with high frequency discharge excitation Disclosed is a gas laser utilizing high frequency discharge excitation in the area of sonic or supersonic/subsonic transfer gas flow. The laser uses various types of gases and mixtures of gases as the active medium and provides for pre-ionization of the g... | 10/28/1997 |
| 5676292 | Remote carrier deck An automotive remote carrier deck for transporting equipment or other material and attachable to a standard trailer hitch tongue. The remote carrier deck has a trailer hitch assembly which attaches directly to a trailer hitch tongue and which elevates the... | 10/14/1997 |
| 5660608 | Filter cartridge boot A filter boot having a radially extending annular flange which is used to properly seat the filter boot to a tube sheet. The filter boot utilizes two annular recesses for properly affixing a pleated filter to the filter boot. A deep annular upper recess i... | 08/26/1997 |
| 5657945 | Powerized unroller A powerized apparatus utilized in handling and unrolling large rolls of fabric, on the order of 600 pounds has pneumatically controlled air cylinders to raise and lower a loading door for proper loading of large fabric rolls. Dual air actuators are connec... | 08/19/1997 |
| 5649435 | Circular knitting machine with replaceable knitting head A tubular knitting machine having a separate take-up assembly and removable knitting head. The knitting head drive mechanism is removably attached to the take-up assembly. A separate drive mechanism is provided for take-up tension and drive rollers. The t... | 07/22/1997 |
| 5636791 | Backpack sprayer The present invention is for a backpack sprayer which has a reservoir tank fixedly attached to a support frame, the tank having a fill opening located at the top end and a pressure vessel located therein. The pressure vessel has a pump housing located the... | 06/10/1997 |
| 5630478 | Masonry drill bit and method of making a masonry drill bit A masonry drill and method of manufacture is disclosed. The drill has an elongated axial body with at least one discharge groove and a transverse slot located at one end with a hardened drill bit insert brazed within the slot. The hardened insert has proj... | 05/20/1997 |
| 5601320 | Two piece portable doorstop The present invention is for a portable two piece door stop which can be readily assembled and disassembled. The doorstop is made of a first wedge member having a longitudinal slot formed therein which receives an engagement head of the second back suppor... | 02/11/1997 |
| 5524816 | Trifold lid storage box and storage system A tri-fold lid storage box which enables the user to convert available storage space underneath a bed into usable storage. The storage box is comprised of a separate box and lid, the box having a triple reinforced front panel for pulling the box outward, ... | 06/11/1996 |
