1
Heaney Donald F: Activated sewage plant. Dravo Corporation, January 30, 1973: US3713543 (36 worldwide citation)

There is disclosed an activated sewage disposal plant of the compact or so-called 'packaged' type and a method of processing sewage wherein a fast filter is provided through which the effluent liquid from the primary processing is passed, provision being made for backwashing the fast-flow filter fro ...


2
Savage Elton S, Heaney Donald F: Gas diffuser. Dravo Corporation, March 27, 1973: US3722836 (6 worldwide citation)

A gas diffuser for admitting gas into a body of liquid is disclosed. The diffuser includes an elongated body with a chamber extending inwardly from an open face thereof and a resilient strip covering the chamber and secured to the body so as to flex at its ends under the urging of the pressure of ga ...


3
Crawford William A, Potter Tracy J, Heaney Donald F, Deforce Brian S, Onukuri Samardh: Cast parts with improved surface properties and methods for their production. Ethicon Endo Surgery, April 2, 2008: EP1905461-A1

Techniques for forming cast parts for medical devices suitable for contact with internal regions of patients are described herein. Such parts can be small in scale (e.g., having a major axis less than 0.3 inches, and/or a minor axis less than about 0.08 inches), and can be formed from metals that ha ...


4
Heaney Donald F, Boal Delbert L: Fond de filtre, Filter bottom. Dravo Corporation, May 13, 1980: CA1077408

Abstract A nozzleless, strainerless filter bottom includes afirst set of blocks laid end-to-end in spaced parallel rowsto define elongated channels. Transverse grooves in the lowersurface of the first set of blocks provide communicationbetween adjacent channels. A second set of blocks laid end-to-en ...


5
Jadeed Nabeel Mark, Benjey Charles Frank, Heaney Donald F: Support structures for molded parts. Ethicon Endo Surgery, August 6, 2008: EP1952916-A2

Structures and methods for hindering molded part deformation during densification are discussed. Such devices and techniques can help alleviate stresses that tend to result in part deformation during firing, sintering, or other densification processes, and thus reduce the need for secondary straight ...


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Jadeed Nabeel Mark, Benjey Charles Frank, Heaney Donald F: Support structures for molded parts. Ethicon Endo Surgery, sujuan, December 24, 2008: CN200710306674

Structures and methods for hindering molded part deformation during densification are discussed. Such devices and techniques can help alleviate stresses that tend to result in part deformation during firing, sintering, or other densification processes, and thus reduce the need for secondary straight ...


8
Deforce Brian S, Crawford William A, Potter Tracy J, Onukuri Samardh, Heaney Donald F: Cast parts with improved surface properties and methods for their production. Ethicon Endo Surgery, sujuan, April 2, 2008: CN200710163021

Techniques for forming cast parts for medical devices suitable for contact with internal regions of patients are described herein. Such parts can be small in scale (e.g., having a major axis less than 0.3 inches, and/or a minor axis less than about 0.08 inches), and can be formed from metals that ha ...


9
Jadeed Nabeel Mark, Benjey Charles Frank, Heaney Donald F: Support structure for molded part. Ethicon Endo Surgery, December 4, 2008: JP2008-291346

PROBLEM TO BE SOLVED: To provide a molded part, and more specially techniques for producing the part to provide improved properties such as better alignment.SOLUTION: Such techniques can help alleviate stresses that tend to result in part deformation during firing, sintering, or other densification ...


10
Crawford William A, Potter Tracy J, Heaney Donald F, Deforce Brian S, Onukuri Samardh: Cast parts with improved surface properties and methods for their production. Ethicon Endo Surgery, April 10, 2008: JP2008-080403

PROBLEM TO BE SOLVED: To provide techniques for forming cast parts for medical devices suitable for contact with internal regions of patients.SOLUTION: Such parts can be small in scales {e.g., having a major axis less than 7.62 mm (0.3 inches), and/or a minor axis less than about 2.03 mm (0.08 inche ...