Daniel L Goffredo

US Patent:

40179826, Apr 19, 1977

Filed:

Jul 28, 1975

Appl. No.:

5/599597

Inventors:

Daniel L. Goffredo - Riverton NJ

Assignee:

Chemcut Corporation - State College PA

International Classification:

F26B 304

US Classification:

34 31

Abstract:

Apparatus is provided for drying articles that have been treated, for example, with an etchant or other treatment fluid and then washed, in order to remove the liquid, generally water, therefrom, the apparatus employing a conveyor for conveying the articles through a chamber, with a plurality of gas knives for preferably engaging the wet articles with a stream or curtain of cool air for physically impelling most of the liquid, generally water, from the articles, followed by delivering the articles past one or more other gas knife stations whereby air that has been heated is impelled onto the articles, for removing generally water film from the surface thereof. The apparatus is adjustable for using a single blower to provide originally unheated air to a single duct that is bifurcated into two channels, with a heater being provided in one of the channels.

US Patent:

39350410, Jan 27, 1976

Filed:

Jan 2, 1974

Appl. No.:

5/430197

Inventors:

Daniel L. Goffredo - Riverton NJ
Conrad Dale Shakely - Spring Mills PA

Assignee:

Chemcut Corporation - State College PA

International Classification:

B08B 704
B05C 500
C23F 100
G03C 524

US Classification:

156 18

Abstract:

Treated articles such as printed circuit boards that have been etched with an etchant or treated with a solvent, are delivered into a zone of sufficiently high humidity to prevent drying of a liquid treatment fluid on the articles, and wherein the treatment fluid is "blown off" the articles by pressurized air, in the high humidity environment, with the treatment fluid then being delivered for re-use at a prior station. Alternately, the treatment fluid is atomized, entrained in the pressurized air stream and "blown on" the articles, whereby the treatment fluid is efficiently and uniformly applied thereto.

US Patent:

40462480, Sep 6, 1977

Filed:

Oct 23, 1975

Appl. No.:

5/625172

Inventors:

Daniel L. Goffredo - Riverton NJ
Conrad Dale Shakley - Spring Mills PA

Assignee:

Chemcut Corporation - State College PA

International Classification:

B65G 1560

US Classification:

198583

Abstract:

Modular chemical treatment apparatus with improved sidewall connecting and alignment means consisting of a connecting member secured to abutting sidewalls, the connecting member overlying and held in intimate contact with a longitudinal, vertical planar surfce. A variety of such connecting and alignment means are disclosed.

US Patent:

44591837, Jul 10, 1984

Filed:

Mar 7, 1983

Appl. No.:

6/473079

Inventors:

Joseph M. Brady - Huntingdon PA
Franz R. Cordes - State College PA
Klaus H. Gedrat - Berlin, DE
Daniel L. Goffredo - Riverton NJ
Walter Meyer - Berlin, DE
Conrad D. Shakley - Spring Mills PA

Assignee:

Chemcut Corporation - State College PA

International Classification:

C25D 706
C25D 1706
C25D 1728
C25D 2110

US Classification:

204 27

Abstract:

An electroplating apparatus and method is provided, whereby generally flat workpieces, such as metal plates and the like may be electroplated, on a continuous basis, automatically and without manual intervention. The workpieces are delivered horizontally through a bath of electrolyte. They are conveyed through the bath by being engaged by driven contact wheels that also serve as one of the electrodes. The other electrode is in the bath electrolyte solution. As the workpieces are delivered through the bath, they are engaged and disengaged by the contact wheels, but are always in engagement with contact wheels for not only continuous conveyance, but for continuous electrical connection therewith. A particular slide mount is provided for holding an opposite side of the plate as the plate is carried along its flow path, and this mount is adjustably positionable to accommodate different width workpieces. Solution flow through the electrolyte path is provided on a continuous basis, and both agitates and replenishes the electrolyte solution.

US Patent:

42331064, Nov 11, 1980

Filed:

Jul 9, 1979

Appl. No.:

6/055990

Inventors:

Daniel L. Goffredo - Riverton NJ

Assignee:

Chemcut Corporation - State College PA

International Classification:

C23F 102

US Classification:

156627

Abstract:

A system is provided for control of ion concentration (as for example in pH or redox control), for use for example in etching articles, wherein other features such as specific gravity control are also provided. The ion concentration control is provided with cleaning and recalibration features. In a specific embodiment, provision is made for adding ammonia to an etching solution and for continuously monitoring the pH of the system. Visual indicators are provided for operator observation of fluid flow through various lines, generally by windows being provided in the cabinet apparatus. A particular electrode cell is disclosed as a prominent feature of ion concentration control.

US Patent:

40157067, Apr 5, 1977

Filed:

Jan 15, 1974

Appl. No.:

5/433482

Inventors:

Daniel L. Goffredo - Riverton NJ
Conrad Dale Shakley - Spring Mills PA

Assignee:

Chemcut Corporation - State College PA

International Classification:

B65G 1302

US Classification:

198780

Abstract:

An etching system is disclosed, whereby individual and discrete modules are provided, each for performing its own function, with the modules being longitudinally connected in serial arrangement, and being aligned by suitable pin-in-hole arrangement, and with a common drive for all of the modules, by the use of drive rods carried by each of the modules that are coupled together with the connecton of adjacent modules. Individual features of the various drive means are also disclosed.

US Patent:

41904818, Feb 26, 1980

Filed:

Dec 30, 1977

Appl. No.:

5/865859

Inventors:

Daniel L. Goffredo - Riverton NJ

Assignee:

Chemcut Corporation - State College PA

International Classification:

C23F 100

US Classification:

156345

Abstract:

A system is provided for control of ion concentration (as for example in pH or redox control), for use for example in etching articles, wherein other features such as specific gravity control are also provided. The ion concentration control is provided with cleaning and recalibration features. In a specific embodiment, provision is made for adding ammonia to an etching solution and for continuously monitoring the pH of the system. Visual indicators are provided for operator observation of fluid flow through various lines, generally by windows being provided in the cabinet apparatus. A particular electrode cell is disclosed as a prominent feature of ion concentration control.

US Patent:

44027990, Sep 6, 1983

Filed:

Oct 2, 1981

Appl. No.:

6/307687

Inventors:

James J. Ash - Centre Hall PA
Joseph M. Brady - Huntingdon PA
Daniel L. Goffredo - Riverton NJ
Conrad D. Shakley - Spring Mills PA

Assignee:

Chemcut Corporation - State College PA

International Classification:

C25D 502
C25D 1706
C25D 1728

US Classification:

204 15

Abstract:

Printed circuit boards are carried generally vertically, along a path, with the tabs at the lower end being immersed in an electrolyte. The boards are automatically conveyed through opposed serially arranged pairs of rollers, which drive them along their path. Brushes wipe the boards to prevent contact with electrolyte above the desired contact level, as they are conveyed along the path. The solution is constantly replenished and turbulence provided by delivering electrolyte solution, with insoluble metallic ions in it, by pumping the solution from a sump, through an array of nozzles along each side of the path, thus providing fresh electrolyte along with providing turbulence to the electrolyte. The nozzles are charged at a sufficiently low level to avoid their destruction. Electrical contact is made with the printed circuit boards, by means of serially engaging the boards with spring fingers of a continuous conductor along each side of the boards as they are conveyed along their path, and thereby conducting the applied charge to the immersed tabs, whereby the tabs function as cathodes for electrodeposition of metallic ions thereon.