Douglas C Peck

US Patent:

46856056, Aug 11, 1987

Filed:

Jun 9, 1986

Appl. No.:

6/872370

Inventors:

Donald J. Spigarelli - Carlisle MA
Douglas J. Peck - North Andover MA
James L. Finney - Hudson MA

Assignee:

The HTC Corporation - Concord MA

International Classification:

B23K 306

US Classification:

228 37

Abstract:

A system for the continuous production soldering of circuit boards and other products in which the product is heated by an independently controlled vapor phase system, and solder applied by a separately controlled application system operative to direct one or more controlled and defined streams of solder onto the product. A vessel is provided for containing a heated saturated inert vapor into which the product is introduced prior to solder application. One or more nozzles are disposed within the vessel for directing one or more streams of molten solder to the heated product. The heating and soldering operations are separately controllable and are each substantially independent of the control of the other.

US Patent:

45413584, Sep 17, 1985

Filed:

Nov 28, 1983

Appl. No.:

6/555715

Inventors:

Donald J. Spigarelli - Carlisle MA
Douglas J. Peck - North Andover MA
Walter J. Hall - New Corner MA
James L. Finney - Hudson MA

Assignee:

The HTC Corporation - Concord MA

International Classification:

H05K 324

US Classification:

118 58

Abstract:

A solder leveling system for use in vapor phase soldering of printed wiring boards. A transport system operating in a near-horizontal mode moves the board to be solder coated through a vapor zone in a chamber having a solder pot which has a throat in line with the plane of the transport system. The near-horizontal movement through the vapor and into and out of the solder pot prevents solder sag and permits control of the thickness of solder deposited on the opposing board surfaces. Leveling nozzles are positioned in a vapor-filled chamber astride the transport system between the solder pot and the chamber throat. Perpendicular nozzle offset distance from the board and nozzle angle are adjustable. Preferably one nozzle projects a stream normal to the board, with the other nozzle projecting a grazing stream for clearing through holes. A nozzle flow rate corresponding to a predetermined energy threshold provides reliable hole clearing.

US Patent:

46977309, Oct 6, 1987

Filed:

Jun 9, 1986

Appl. No.:

6/872300

Inventors:

Donald J. Spigarelli - Carlisle MA
Douglas J. Peck - North Andover MA
James L. Finney - Hudson MA

Assignee:

The HTC Corporation - Concord MA

International Classification:

B23K 304
B23K 306

US Classification:

228 37

Abstract:

A system for the continuous production soldering of circuit boards and other products in which the product is heated by an independently controlled vapor phase system, and solder applied by a separately controlled application system operative to direct one or more controlled and defined streams of solder onto the product. A vessel is provided for containing a heated saturated inert vapor into which the product is introduced prior to solder application. One or more nozzles are disposed within the vessel for directing one or more streams of molten solder to the heated product. The heating and soldering operations are separately controllable and are each substantially independent of the control of the other.

US Patent:

47577800, Jul 19, 1988

Filed:

May 20, 1986

Appl. No.:

6/865232

Inventors:

Donald J. Spigarelli - Carlisle MA
Douglas J. Peck - North Andover MA
Walter J. Hall - New Corner MA
James L. Finney - Hudson MA

Assignee:

The HTC Corporation - Concord MA

International Classification:

H05K 324
B05C 310

US Classification:

118 64

Abstract:

A vapor phase system for soldering of a workpiece. A vessel for containing an electronic liquid which is heated to generate a zone of saturated vapor. A first inclined throat communicates with the vessel and a solder pot is located within the vessel. The solder pot including a reservoir for containing molten solder, a second throat aligned with the first throat and communicating at one end with molten solder contained in the reservoir means and communicating at the other end with the saturated vapor, molten solder contained in the reservoir means is pumped through the second throat and is captured by the reservoir and a conveyor carries work product through the first throat, through the saturated vapor and into the second throat whereby the work product will become immersed in the molten solder contained within the second throat.