The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7921482 | Adjustable plumbing fittings An adjustable plumbing fitting has a piston rotatably and telescopically engaged in a housing, with one end of the housing adapted to be connected to a first plumbing part, and a cylindrical extension on the piston projecting from an opposite end of the housing and ... | 04/12/2011 |
| 7246472 | Drain and a building structure having a drain A floor drain (100) comprising a bottom part (4) having at least one discharge opening (5), a front part being integral with the bottom part (4) and having a first part (3b) being inclined to said bottom part at an angle bei... | 07/24/2007 |
| 7082628 | Disposable solid waste detainment plumbing trap A disposable solid waste detainment plumbing trap. The trap has a container for collecting water and solid waste discharged from a sink through a line threadably connected to an inlet of the container, and for discharging water through an outlet threadably connected... | 08/01/2006 |
| 6859956 | P-trap for plumbing drainage systems A P-trap device for plumbing drainage systems is shown. The device has a first tubing element having a pipe attachment bell at one end and a first coupler portion at the other end and a second tubing element having a pipe attachment bell at one end and a second coup... | 03/01/2005 |
| 6845527 | In-the-wall plumbing trap with integral waste and vent line An in-the-wall plumbing trap having integral connections for waste and vent lines wherein in the vent connection is located on the top of the trap housing and the waste connection on the bottom thereof. A substantially vertical wall formed by an overflow member sepa... | 01/25/2005 |
| 6757918 | Waste outlet fitting for a sanitary appliance, in particular a urinal A waste outlet fitting having a siphon which is mounted in a cup-shaped housing. The siphon has an inlet and an outlet and is inserted into the housing from above. For cleaning and maintenance, the siphon can be removed upwardly and subsequently re-inserted from abo... | 07/06/2004 |
| 6701541 | Odor trap for a waterless urinal An odor trap having a cup-shaped housing, which has an inlet located on an upper end and an outlet on a lower end leading into a drain line. A siphon blocks the passage of gas from the outlet to the inlet. A urine collector is configured in the shape of a... | 03/09/2004 |
| 6687926 | Waste and overflow drain adaptor device An adaptor bushing for bathtub plumbing kits is disclosed. The bushing is adapted to be field securable into either a conventional sanitary tee or elbow fitting. In this way a kit is provided, having identical components, which may be connected in both a ... | 02/10/2004 |
| 6341390 | Plumbing trap system A plumbing trap system is provided with a pair of sanitary traps arranged in series between a first draining device and the waste line. The first draining device drains into the first, upstream sanitary trap and then into the second, downstream sanitary t... | 01/29/2002 |
| 6185758 | Device in draining gutters A device in draining gutters comprises a gutter member (11) adapted to be imbedded in a hole in a floor in relation to the surrounding floor, connectable to a conduit (6) for draining water, said member being adapted to receive water, and an arrangement f... | 02/13/2001 |
| 6049922 | Solid-sediment retainment plumbing trap A solid-sediment retainment plumbing trap devised primarily for a sink from which substantial amounts of solid material are discharged; e.g., eyeglass manufacture and dental plastic grinders. The plumbing trap is connected to the sink, and collects sedime... | 04/18/2000 |
| 5925242 | Sand trap and flow controller mechanism for a bathtub A sand trap and flow controller mechanism for a bathtub includes an outer housing defined by an externally threaded peripheral wall having an upper outwardly directed peripheral flange and a lower inwardly directed peripheral flange with a pair of diametr... | 07/20/1999 |
| 5720183 | Water trap cup A water trap cup for use in connection with a drain tube in a refrigerator is described. In one embodiment, the water trap cup includes a bottom wall and a side wall extending from the bottom wall. The side wall includes retaining webs configured for reta... | 02/24/1998 |
| 5638557 | Sink trap with valuables capture vessel A trap for lavatory and other kinds of sinks comprising a capture vessel for rings and other valuables and a hair interceptor is disclosed.... | 06/17/1997 |
| 5413705 | Filterless drain separator A retrofittable filterless drain separator has an outer housing with a spherical section and an inner holding area including an inner spherical segment which is positioned and spaced apart from the spherical section of the outer housing. The separator inc... | 05/09/1995 |
| 5249398 | Cesspool A cesspool for handling waste water passed through the cesspool to an associated drainage system has two separate odor locks for preventing the escape of odoress gas from the drainage system through the cesspool. A downwardly extending inlet member is sur... | 10/05/1993 |
| 5236137 | Apparatus and method for garbage disposal cleaning An apparatus and method for cleaning and flushing a conventional garbage disposal unit. A flow restricting valve replaces a conventional valve in the water seal trap in a kitchen drain line. The flow restricting valve is actuated by a pull-push plunger fr... | 08/17/1993 |
| 4953235 | Trap fitting assembly An improved trap fitting assembly (F1, F2) which prevents the spread of fire and smoke through a floor (100,200) of a building is described. The fitting uses a flammable coupling (10, 30) and a non-flammable sleeve (14, 32) inside th... | 09/04/1990 |