Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6908607 | Dental bleaching gel composition and activator A dental bleaching gel composition having a long shelf life for use with an activator system to cause accelerated bleaching action over a shortened time period of a peroxide bleaching agent in the bleaching gel composition when applied upon a tooth surface for cosme... | 06/21/2005 |
| 6592769 | Filter and collection device for separating materials and use thereof A device is provided for the filter and collection of one or more material. The device incorporates a manifold with an inlet conduit and an outlet conduit, with an adjustable control handle on the top of the manifold and a baffle plate in the inside of th... | 07/15/2003 |
| 6464499 | Air-sucking, sterilizing and wastewater treatment method for dental clinic bed This is an air-sucking, sterilizing and wastewater treatment method for dental clinic bed. It has an air-sucking and sterilizing device, and a wastewater-treating device below a gargle bench of a dental clinic bed. The air-sucking inlet of the air-sucking... | 10/15/2002 |
| 6149812 | Dental environmental filter for heavy metals and mercury hygiene A dental environmental filter is provided for the collection of heavy metals and other particles during dental or other procedures. The dental environmental filter incorporates a manifold with an inlet conduit and an outlet conduit, with an adjustable con... | 11/21/2000 |
| 5879552 | Method and apparatus for a self-purifying filter system A self-purifying filter apparatus comprising (1) a filter having a first surface and a second surface; (2) flow control means, such as a vacuum pump, for causing a stream of fluid interspersed with solid particulates to pass from the first surface to the ... | 03/09/1999 |
| 5858225 | Dental filter with sanitary handling A filter canister assembly for receiving waste from a dental cuspidor includes a canister of generally conventional configuration, with an open upper end fitted with a canister closure, the canister containing a closed disposable filter basket. A hand gri... | 01/12/1999 |
| 5820753 | Disposable dental evacuation trap Undesired contact with dental debris is minimized by a disposable dental trap which is provided with a removable top cover and a pivotable handle. The useful capacity of the trap is increased with a corrugated filter which increases the available filter s... | 10/13/1998 |
| 5571412 | Dental filter assembly A filter canister assembly for receiving waste from a dental cuspidor includes a canister of generally conventional configuration, with an open upper end, fitted with a canister closure which engages with the upper end of the canister and which is secured... | 11/05/1996 |
| 5462434 | Dental hand tool clearing shield The invention disclosed herein provides a shield for use in operating dental hand tools outside of a patient's mouth while preventing escape of any matter ejected from the hand tool into the surrounding vicinity, thereby eliminating or substantially reduc... | 10/31/1995 |
| 5407565 | Solids collector used in dentistry The solids collector collects solids that may be ejected by an HVE. The collector includes a deflector for efficiently filling the collector.... | 04/18/1995 |
| 5114578 | Settling apparatus A settling apparatus for the separation of amalgam from waste water in a dental procedure includes an inclined passage through which the water is caused to flow from below and upwards while depositing amalgam. The inclined passage has an inclination of be... | 05/19/1992 |
| 5022858 | Portable dental instrument sterilizing container A portable dental instrument sterilizing container adapted to be connected to a support which flanks a dental chair. The container has a top section, an internal middle section and a bottom section. The bottom section has a projection adapted to be insert... | 06/11/1991 |
| 4717057 | Dental paste cup with integrated finger mount A dental paste cup is provided which comprises a cup having an open mouth defined by a rim, a removable closure overlying the open mouth and engaging the rim, and a finger mount extending adjacently and circumferentially from the rim, in a ring-like manne... | 01/05/1988 |
| 4226590 | Device in dental suction apparatus for connecting and holding suction nozzle tubes and/or for filtering Dental suction apparatus is a modular construction, made up of a plurality of modules joined fluid-tight side-by side. A main suction duct extends through all of the modules. At least two of the modules have connection for suction hoses each having a suct... | 10/07/1980 |
| 4197646 | Housing for dental amalgamator A housing for containing a dental amalgamator is adapted both to retain liquid mercury lost during operation of the amalgamator such that the liquid mercury may be recovered and confine mercury vapor evolved during amalgamation and exhaust the mercury vap... | 04/15/1980 |
| 4058897 | Amalgam retriever A device is shown for use in a dental office or the like where particles of precious metal or amalgam are to be recovered from a flushing stream. The construction utilizes a housing for enclosing a downwardly sloping trough element through which a flushin... | 11/22/1977 |
| 3964112 | Dental cuspidor with fluid recirculation system A water recirculation system is described wherein the discharge of one or more dental cuspidors is rendered reuseable and continuously used in the operation of a water sealed vacuum pump in a dental vacuum discharge system.... | 06/22/1976 |
