DAVID WILLIAM PRESBY
Pilots at Presby Rd, Landaff, NH

4373285, Feb 15, 1983

Sep 29, 1980

6/191397

Kenneth M. Grout - Littleton NH
David W. Presby - Sugar Hill NH

F41C 2700

42 90

A loading device and method for loading a muzzle loading gun. The device comprises an elongated attachment with a longitudinal bore across which is placed a frangible septum. The bore above the system is loaded with a premeasured powder charge and a projectile with wadding (if necessary). The attachment is placed on the end of the muzzle of the gun, the septum is sundered by sundering means within the attachment, the powder passes by the sundered septum and the projectile is rammed into position by a ram rod inserted through the upper open end of the bore of said attachment.

2003014, Aug 7, 2003

Oct 11, 2002

10/269495

David Presby - Sugar Hill NH, US

B26F001/24

083/660000

The invention is a method and apparatus for making conduit for use in leaching systems, and the conduit produced thereby. The conduit has apertures created during its formation. The apertures are not cut from the material of the conduit. The material that is perforated is “rolled”, and made a part of the inner surface of the conduit. Included is at least one perforator that is actuatable. The conduit-forming material being perforated (typically a plastic-type material) is semi-molten, as during formation of the conduit, or after formation of the conduit by heating the perforator, thereby causing the conduit-forming material to be rolled rather than cut in creating a perforation. The apparatus has at least one actuatable perforator or at least one multi-tipped sequentially actuatable perforator located in at least one of a plurality of conduit-forming molds. Each of the molds has first and second “mold-halves” which are advanced together in an open position, and then closed, creating a cavity wherein molten conduit-forming material is injected. After injection, the mold body formed by the closed mold halves continues to advance, and while the conduit-forming material is still semi-molten the at least one perforator is activated, thereby forming a perforation into the soft conduit before the material has completely hardened. The perforator tip portion(s) is then withdrawn, leaving a perforation of predetermined geometry and dimension, and having “inwardly rolled” edges. When the conduit is “set”, the mold-halves are opened, allowing the conduit, having apertures therein, to be removed and the now-open mold halves to return to the beginning of the cycle to be closed again and accept new molten conduit-forming material. Thus, there is a continuous cycle of conduit formation, using the same mold halves. The conduit produced is distinguishable from similar conduit because the perforations are not “cut out” but are created by rolling the material inwardly, thereby improving strength and enhancing functioning of the conduit.

6290429, Sep 18, 2001

Oct 18, 1999

9/420197

David W. Presby - Sugar Hill NH

C02F 100

405 45

The invention most fundamentally is a leaching system substantially consisting of subsystems of liquid permeable conduit, serial or parallel interconnected for the serial or parallel flow of fluid being processed. Fluid flow is within subsystems and between subsystems from one level to another level. I. e. , the subsystems of which the system is comprised are located at different depths one above the other within a "leach bed" or within the volume designed to process the leached fluid. The leaching system has at least two (2) leaching subsystems wherein each of the leaching subsystems is planarly located at a different depth within the leaching field having the leaching system installed therein. The leaching subsystems are fluid flow connected, using tubing, such that fluid being leached either flows; (1. ) sequentially or serially through one of the subsystems and then sequentially or serially through another of the subsystems and subsequently through yet another subsystem until the last of the subsystems; or (2.

5954451, Sep 21, 1999

Dec 18, 1997

8/998351

David W. Presby - Sugar Hill NH

B01D 2919, B01D 2960, E02B 1100

405 49

A device/apparatus for using a multilayer fabric of varying deniers for the processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. More particularly the multilayer fabric, each layer being of selected denier, is used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system. Most particularly the multilayer fabric of varying deniers is wrapped around corrugated plastic pipe of the type well known in the field of drainage or leaching fields. At least one of the multilayer fabric layers is formed from an unstructured assemblage of fibers. The unstructured assemblage of fibers are supported by an outer sheeting. Oils, greases and chemicals contained in the fluids to be treated and entering within the fluid conducting conduit structure are entrapped within at least one of the first layers and at least one additional layer of fabric and particularly on the unstructured assemblage of fibers.

8342212, Jan 1, 2013

May 23, 2006

11/915150

David W. Presby - Sugar Hill NH, US

Presby Patent Trust - Whitefield NH

F16L 9/18

138112, 138121, 138125, 405 43, 405 45, 405 49, 21017008

A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.

5606786, Mar 4, 1997

Sep 29, 1995

8/536804

David W. Presby - Sugar Hill NH

B23C 300

29 33T

An apparatus and method for perforating corrugated plastic pipe from the inside of the pipe to the outside and the pipe produced by the method. The apparatus has a perforating device attached to an elongated support member. Perforations are created by advancing pipe over the perforating device or by advancing the perforating device into the interior of the pipe. Where the pipe is advanced over the perforating device, a carriage, holding the pipe, is riding on a track which guides the pipe into engagement or into cutting or perforating proximity with the perforating device. The perforating device includes a housing holding motors with cutters attached to them. The cutters cut the inner corrugations or the valleys of the pipe as the pipe is passed over the perforating device. Pipe is perforated by advancing it over a perforating device, and curing the pipe from the inner pipe surface to the outer pipe surface. The perforated pipe made using this apparatus and method is distinguishable from similar pipe where the preforations are made from the outside of the pipe to the insided of the pipe.

5429752, Jul 4, 1995

Feb 16, 1993

8/017862

David W. Presby - Sugar Hill NH

B01D 2102

210802

This invention most generally relates to a method of and a device/apparatus for use in precipitating out suspended solids, particularly those found in septic tanks, and having the particular objectives, features and advantages of: 1) Special formed collection and support structure which will not restrict or inhibit the flow-through of liquid in a septic tank; 2) Liquid flow directing devices causing undulating and directed liquid flow; 3) Compatibility with existing septic tanks; 4) Collection panels with collection surfaces with-current and counter current to liquid flow within the tank and permitting cross current flow-through of the panels; 5) Special structure adaptable to be easily removed and cleaned. Even more particularly, the invention is directed to a septic tank maze apparatus comprising means for causing the incoming liquid having the suspended materials suspended therein to flow in an undulating path in a direction substantially parallel to collection surfaces of collection panels. The suspended solids collect, at least in part, simply due to contacting the panel collection surface.

7713414, May 11, 2010

Aug 21, 2007

11/894441

David W. Presby - Sugar Hill NH, US

C02F 3/00

210605, 210610, 210630

Disclosed is a water de-contamination system, methods, and apparatus using alternating aerobic, anaerobic, and aerobic conditions, with carbon and other waste processing treatments, to remove contaminants from water. Included is an aerobic system in flow communication with an outlet from a waste tank; waste processing treatments in flow communication with liquid exiting the aerobic system and in which anaerobic conditions can be created; means for creating and maintaining anaerobic conditions either within the waste processing treatments or after fluid exits the waste processing treatments; means for return of the fluid into aerobic conditions. A fluid retaining device within which anaerobic conditions are maintained and nitrogen-containing compounds and other contaminants are processed and removed is used. Waste processing treatments are provided within or adjacent the fluid retaining device. Included are outflow means for fluid to exit the fluid retaining device and enter aerobic conditions for final processing and release.

2013010, May 2, 2013

Dec 20, 2012

13/722247

Presby Patent Trust - Whitefield NH, US
David W. Presby - Sugar Hill NH, US

PRESBY PATENT TRUST - Whitefield NH

E03F 3/04

210615, 210767, 210749, 210806, 210758

A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.

8501006, Aug 6, 2013

May 17, 2011

13/109695

David W. Presby - Sugar Hill NH, US

Presby Patent Trust - Whitefield NH

C02F 3/00

210605, 210609, 210209, 21050021

A wastewater treatment system is described. The treatment system can include an aerobic digestion system, an anaerobic digestion system, and a ventilation system.