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...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

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Class 405/51 - Branched flow


Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein a flow draining or distributing
No. of patents: 68
Last issue date: 08/02/2011


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NumberTitleIssue Date
5195284Drywell cover and drywell
A drywell cover to cover a drywell and a drywell system employing the drywell and cover wherein the drywell cover comprises a base cover having a raised, central wall section such as a round cylinder and an open inner section and a plurality of at least t...
03/23/1993
5161912Apparatus and methods for agricultural irrigation
An agricultural irrigation system comprised of a plurality of unit pipes which constitute a water supply pipe line and another plurality of unit pipes which constitute a plurality water dispensing line each of whose respective pipe units are connected to ...
11/10/1992
5133622Water distribution system
An improved water distribution system of the type that includes a distribution conduit and an irrifluent pipe disposed on or below ground for dispersing water at a controlled rate. A first pump connected to the distribution conduit passes the water throug...
07/28/1992
5131196Drywell cover and drywell
A drywell cover to cover a drywell and a drywell system employing the drywell and cover wherein the drywell cover comprises a base cover having a raised, central wall section such as a round cylinder and an open inner section and a plurality of at least t...
07/21/1992
5120157Tennis court irrigation
An underground system for supplying water to and removing water from an athletic facility having a surface which is susceptible to excessive moisture and dryness. The system includes an array of pipes which are positioned within rectangularly cross sectio...
06/09/1992
5086594Composite drywell, drywell system and method
A composite drywell, a drywell system and method employing the composite drywell, which composite drywell comprises a cylindrical drywell having a removable top and bottom section, the drywell composed of a plurality of separate, edge-interlocked, arcuate...
02/11/1992
5039251Apparatus and methods for agricultural irrigation
An agricultural irrigation system comprised of a plurality of unit pipes which constitute a water supply pipe line and another plurality of unit pipes which constitute a water dispensing line each of whose respective pipe units are connected in series by ...
08/13/1991
5037238Process for raising sunken sprinkler heads
A process for raising a sunken, in-ground sprinkler is provided. In the first step of this process, which is especially useful with pop-up sprinklers, the area around the top of the sprinkler is first cleared. Thereafter, the motor compartment structure a...
08/06/1991
4986905Distribution control system for recycling treated sewage water for irrigation
The present invention is a self-contained residential and commercial treatment system which is capable of purifying waste water and then distributing the purified water by means of a sprinkler system or a drip feed irrigation system or of recycling the pu...
01/22/1991
4982533Drywell with plugs, drywell system and method for controlling the flow and direction of surface water
An improved drywell system and method of controlling the flow and distribution of surface water employing a drywell, the drywell including a cylindrical drywell adapted to be positioned beneath the ground, which drywell has at least one large diameter por...
01/08/1991
4948293Connector apparatus and method for manufacturing an irrigation apparatus
A connector apparatus for connecting a work object in fluid communication with a first conduit which has a wall having an orifice formed therein, the apparatus including a first portion mounting a locking member, a second portion having a channel formed t...
08/14/1990
4917535Pressure compensating flow rate control device with dual operating modes
A pressure compensating flow rate control device includes a one-piece molded plastic body having an external surface with a recessed inlet port for receiving a fluid and a recessed outlet port for discharging a fluid. First and second passages are defined...
04/17/1990
4878781Moisture control system for a foundation
A moisture control system for controlling the moisture level of subsoil adjacent the foundation of a building in which a supply pipe extends in the subsoil along an area adjacent the foundation and an accumulator pipe is disposed adjacent the supply pipe....
11/07/1989
4784221Wellpoint system and reel
A well point assembly is provided having an elongated flexible header pipe with a plurality of coupling joints attached thereto for attaching wellpoint assemblies. A flexible header pipe reel stores the flexible header pipe when not in use and allows the ...
11/15/1988
4721408Water distribution system
An improved water distribution system characterized by a construction including an irrifluent pipe disposed below the soil surface for dispersing water or treated waste water at a controlled rate. The irrifluent pipe includes an inner fluid conduit having...
01/26/1988
4666334Erosion control system for bluffs located adjacent a body of water
An erosion control system is disclosed which includes a seawall for protecting dunes or bluffs located adjacent a body of water. The seaward side of the seawall is notched or concave to direct incoming waves upwardly and outwardly, away from the base of t...
05/19/1987
4580597Fluid distribution system
A fluid distribution system for a vessel comprises a fluid supply main conduit and a plurality of parallel co-planar branch pipes, the branch pipes having terminal orifices equidistantly spaced from the inner wall of the vessel by about half the distance ...
04/08/1986
4538377Irrigation system
A field crop treatment system, characterized by a first treatment pipe submerged under the root system of growing field crops, and a second drain pipe submerged under the treatment pipe. The system is connected in such a manner that it can operate in seve...
09/03/1985
4425172Manifolds for strutted film
The invention deals with means for producing a manifold for a strutted film. In particular, the connection of a plastic tubular conduit to a strutted film to form a fluid tight communication between the strut passageway and the interior of the conduit is ...
01/10/1984
4359297Dike irrigation
A furrowed irrigated field is diked and water is applied to the furrows. The water is prevented from running down the furrows by the dikes and therefore stays in the approximate location where applied. The water is applied to the furrows from an elevated ...
11/16/1982
4358221System for pollution control
The disclosure relates to dump sites for chemical and toxic wastes which avoid the usual problems of chemical pollution of ground water, streams and rivers. Use is made of impacted reinforced concrete tongue and groove sections in sealed relation to the u...
11/09/1982
4353524Fluid control gate
An improved fluid control gate for selective insertion through a wall such as a flexible irrigation tube to a pressurized fluid medium such as water under gravity feed. The fluid control gate having a hollow extender mounted through and to the wall for th...
10/12/1982
4293237Irrigation and drainage apparatus
The present invention constitutes an improved subsurface irrigation and drainage apparatus and system for its use that includes at least one main pipe or line arranged to receive a water flow therein that can include a water born fertilizer and, optionall...
10/06/1981
4246305Drainage structure and process
This invention relates to drainage by use of elongated strips of such a physical structure that they allow an exchange of fluids between their core and the medium in which they are placed. The drainage strips are used by vertically placing them in wet soi...
01/20/1981
4180348Subsurface irrigation and drainage system
An irrigation and drainage system for cultivated fields, croplands and the like for supplying and extracting water and similar liquids through a subsurface conduit network automatically responsive to the ground water table occurring above or below a prede...
12/25/1979
4128107Surface irrigation gate
An outlet fitting construction for thin-walled, flexible plastic tubing for fluid distribution systems. The outlet fitting includes first and second outlet members that in the preferred embodiment are threadedly engaged and have aligned axial passageways....
12/05/1978
4126998Irrigation apparatus
Irrigation apparatus comprising first and second layers of sheet material, at least one of the first and second layers being configured in relief and the first and second layers being bonded together at touching surfaces such that the bonding of the touch...
11/28/1978
4020902Well point system
A well point system is provided having automatic regulation of the flow of fluid through each riser in order to shut off an individual riser when the water level drops below the well point of that particular riser. The automatic regulation of the flow of ...
05/03/1977
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