DR. LARRY STEVEN MARTIN, DDS
Dentist at Nilles Rd, Hamilton, OH

4255107, Mar 10, 1981

May 26, 1978

5/909623

Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 1707, B29D 2318

425163

Apparatus and method for producing thermoplastic corrugated tubing having substantially uniform thickness throughout comprises extruder and step of forming hollow smooth-walled extrudate. Corrugating structure immediately adjacent extruder is arranged to receive extrudate and to form corrugations therein. Such structure includes continuously moving cooperating mold blocks configured to form alternating annular peak portions, valley portions and interconnecting side wall portions in extrudate when it is blown into intimate engagement with configured mold blocks. Thickness of extrudate being corrugated is controlled to provide relatively thin extrudate portions during formation of annular valley portions and relatively thick extrudate portions during formation of annular peak and interconnecting side wall portions.

5460501, Oct 24, 1995

Apr 7, 1994

8/224541

John Wise - Hamilton OH
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 4790

425 71

An improved pipe production line is provided having an improved manifold assembly component and an improved former component. The improved manifold assembly for use with a die in the extrusion of plastic includes a water inlet tube, a tube through which a vacuum is pulled, a water return tube, a calibration finger first section having an outer surface, the first section having at least one water receiving channel connected to the water inlet tube and the first section having a channel connected to the tube through which a vacuum is pulled, and the first section having the water return tube positioned centrally of the first section outer surface, with the first section having formed therein apertures connected to the channel connected to the tube through which a vacuum is pulled, and a calibration finger second section having an outer surface and an interior channel, with the second section having the water return tube positioned centrally of the second section outer surface, and the second section having formed therein apertures connected to the interior channel.

5505897, Apr 9, 1996

Apr 7, 1994

8/224553

John Wise - Hamilton OH
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 4790, B29C 5358

264565

A method for manufacturing plastic pipe such that the pipe has apertures formed therein when the pipe is viewed in cross-section, comprising the steps of having hot plastic flow through a die and subsequently be extruded through a die head to form an extruded wall component having first and second end wails, with the die head having formed therein a plurality of first sized gaps and a plurality of second sized gaps, with the second sized gaps having an aperture located inside each of said second sized gaps. The die is secured to a manifold assembly, with the manifold assembly comprising sets of tubes located centrally of one another, each set of tubes comprising a water inlet tube, a tube through which a vacuum is pulled, and a water return tube. Each set of tubes is positioned longitudinally within a respective die manifold tube with the outermost surface of each set of tubes spaced a first distance from the respective die manifold tube. Each of the respective die manifold tubes extends through the die.

5513974, May 7, 1996

Apr 7, 1994

8/224558

John Wise - Hamilton OH
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 4776

425393

An improved manifold assembly which can be used in the extrusion of a plastic with the manifold assembly having a die having a first end and a second end, with the die having a die head sectored at the second end, sets of a plurality of tubes located centrally of one another, each set positioned longitudinally within a respective die manifold tube with the outermost surface of each set of tubes spaced a first distance from the die manifold tube, each of the die manifold tubes extending through the die, at least two calibration fingers secured to the die, each of the calibration fingers having a proximal portion adjacent the die head, the proximal portion of each calibration finger being spaced a second distance from the die head, with the manifold assembly being vented to atmosphere by a venting channel, the venting channel extending from between the proximal tip and the die head to the first end of the die head with a portion of the venting channel being between the die manifold tube and the otuermost surface of each set of tubes.

5582842, Dec 10, 1996

Apr 7, 1994

8/224540

John Wise - Hamilton OH
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 4790

425 71

An improved manifold calibration finger which can be used in conjunction with a die head in the extrusion of a plastic with the manifold calibration finger comprising a first section comprising an elongate tubular member having a grooved outer surface and an elongate central channel extending through the first section from one end of the first section to the other.

5513975, May 7, 1996

Apr 7, 1994

8/224559

John Wise - Hamilton OH
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

B29C 4792

425393

An improved manifold assembly which can be used in conjunction with a die head in the extrusion of a plastic with the manifold assembly having a water inlet tube, a tube through which a vacuum is pulled, a water return tube, a calibration finger first section, and a calibration finger second section.

4904113, Feb 27, 1990

Aug 18, 1987

7/086678

James B. Goddard - Powell OH
Leon H. Zimmerman - Nashville TN
Larry L. Martin - Hamilton OH

Advanced Drainage Systems, Inc. - Columbus OH

E02B 1100

405 45

A hydraulic structure is provided in the form of a flexible, flat, corrugated plastic tube having a relatively oblongated cross-section, with apertures associated with the grooves of the corrugation. The tube is enclosed in a geotextile sheath. The two relatively flat sides or panels of the tube are separated from each other by a plurality of pairs of cuspations, which project inwardly from the panel surface. Cuspations from the opposing panels are secured to one another thereby providing increased structural integrity.