Abstract: A desoldering system which operates in conjunction with a soldering instrument which may be of the temperature controlled type disclosed and claimed in applicant's prior U.S. Pat. No. 3,883,716. The desoldering tip is specifically designed for simultaneously desoldering dual-in-line integrated circuit packages, having for example 14 or 16 pins, multiple pins for transistors, 8 or 10 pin round integrated circuit packages and the like. Due to the large throughput of air required to the vacuum system the desoldering attachment features large inlet pipes. The desoldering tip is directly screwed onto the heating element of a soldering instrument surrounded by an air tight sleeve which includes a filter or trap for the solder. The sleeve of the desoldering instrument in turn is connected to another barrel which may include an additional filter and is provided with a three-way trigger valve.
Abstract: Plastic handles are provided for conventional metal pliers and the like. One of the handles has an outer portion which when put over one of the handles of the pliers has smooth consecutive indentations to fit the four fingers of the operator. The second handle has a smooth outwardly curved outer portion to fit the palm of the operator and an indentation close to the jaws of the pliers to fit the thumb of the operator. The handles consist of a moldable plastic material having electrical insulating properties and having a central opening thereto shaped to fit the plier handles. The insides of each of the handles facing each other when inserted over the plier handles have serrated portions to retain components and the like thereby to provide a holding fixture.
Abstract: A temperature compensated passive linkage for interconnecting two members having different coefficients of expansion. Preferably the linkage is utilized for interconnecting the stabilizer of a plane with its elevator. The stabilizer may be a graphite epoxy composite while the elevator may consist of aluminum-fiberglass. The differences in the rate of expansion of the two members is compensated by the linkage of the invention which in turn will move a side load hinge fitting to minimize aerodynamic and mechanical problems.
Abstract: A holding fixture is operated by vacuum and consists of a plurality of suction assemblies mounted on a carrier. Each suction assembly forms an independent unit and operates as an automatic valve to disconnect itself from a common vacuum source when the vacuum is broken. To this end each suction assembly is mounted on a common carrier and disposed in a hollow chamber. It includes a flexible member capable of being sucked into the chamber by a pressure differential thereacross to disconnect the particular assembly from the vacuum. The sealing means may consist of a suction cup or O-rings. The movable member may consist of a flexible plastic or a movable disk.
Abstract: A vacuum desoldering tool and tool cleaner system is disclosed. The desoldering tool is connectable at will to a vacuum source and features a venturi exhaust and separate muffler or end cap for the tool. The venturi throat is relatively short and preferably has a ratio of the input throat to the output throat of 4 to 1 or more. The muffler or end cap has a smooth rounded surface and is provided with radially extending openings to serve as an exhaust and muffler. The tool also has an end cap and nozzle tip therefor which are connected to a metallic sleeve of the main portion of the tool by a threaded adaptor ring into which the end cap connects by a snap connection.
Abstract: A replaceable tip assembly for desoldering tools includes an end cap and a nozzle tip in the end cap. The end cap has a frustoconical front portion and a rear cylindrical portion, both being concentric with the central axis thereof. The end cap has a central bore extending therethrough provided with an inwardly extending annular detent. An annular relief is provided between the cylindrical and frustoconical portions so that the inner core is flexible. The nozzle tip has a generally cylindrical outer surface and a central bore extending therethrough. The nozzle tip also has an annular recess cooperating with the annular detent of the end cap. Preferably the annular detent on the end cap and the annular recess on the nozzle tip are disposed about halfway between the two end planes of the end cap.
Abstract: A desoldering system which operates in conjunction with a soldering instrument which may be of the temperature controlled type disclosed and claimed in applicant's prior U.S. Pat. No. 3,883,716. The desoldering tip is specifically designed for simultaneously desoldering dual-in-line integrated circuit packages, having for example 14 or 16 pins, multiple pins for transistors, 8 or 10 pin round integrated circuit packages and the like. Due to the large throughput of air required to the vacuum system the desoldering attachment features large inlet pipes. The desoldering top is directly screwed onto the heating element of a soldering instrument surrounded by an air tight sleeve which includes a filter or trap for the solder. The sleeve of the desoldering instrument in turn is connected to another barrel which may include an additional filter and is provided with a three-way trigger valve.
Abstract: A desoldering attachment for a soldering instrument which may be the temperature controlled type disclosed and claimed in Applicant's prior U.S. Pat. No. 3,883,716. The desoldering attachment comprises an adjustable, inclined desoldering tip which is hollow for the application of a vacuum. It also includes a sleeve housing a filter screen and baffle device for preventing the solder from entering the remainder of the instrument. Extending through the sleeve is a heater element sleeve which contains a heating element for heating the desoldering tip. The heater element sleeve screws into the head of the desoldering tip until it meets a portion of the desoldering tip which can then be adjusted so that the vacuum pipe and the tip of the instrument are properly aligned with respect to the soldering instrument.
Abstract: A general purpose soldering tool holder which will fit most electrically-heated soldering instruments. The tool holder is provided with an external apertured grill to permit the circulation of air therethrough. The outer surface is maintained cool to the touch due to the provision of a heat shield spaced from the grill. The heat shield preferably consists of a material having low-heat transfer characteristics. The soldering instrument is guided by a tip alignment flap forming part of the heat shield. The instrument rests on an intermediate ledge forming part of the tool housing and on an upper rest shaped to accommodate the handle of the soldering instrument. The housing further includes trays for holding a solder spool and a desoldering braid spool which may also be mounted on a shaft. A well is provided in the housing upon which rests a non-wicking foam pad and an outer porous wicking pad for cleaning the tip of the instrument. This will reduce evaporation and subsequent cooling by the cleaning liquid.
Abstract: A trailing edge system including spoilers and flaps in which the spoilers serve as both spoilers and as fairing surfaces which 1) maintain smooth upper wing surface contours for all flap positions and 2) enable relatively small, lighter weight flaps to have the effects of larger, heavier ones.
Abstract: An aerodynamic spoiler mounted on the upper forward surface of the fuselage of an aircraft which is equipped to be refueled by another aircraft while in flight. The spoiler counteracts aerodynamic disturbances produced by the refueling boom and the resultant instabilities in pitch in the aircraft receiving fuel. Four species of the spoiler are disclosed and the device may be made retractable to eliminate drag when not in use.
Type:
Grant
Filed:
September 29, 1976
Date of Patent:
June 20, 1978
Assignee:
The Boeing Company
Inventors:
Ardell J. Anderson, Kenneth D. Hurley, Richard H. Leckman, Ronald H. Robinson, Edward N. Tinoco
Abstract: An eddy current probe for detecting cracks in metal skins and adjacent fastener holes which includes first and second coils wound about first and second vertically stacked ferromagnetic core members which members are held in alignment by an associated optically clear shoe member centered by a centering ring, rotation of the shoe within the centering ring permitting inspection of the entire circumference of a fastener hole.
Type:
Grant
Filed:
December 17, 1976
Date of Patent:
June 13, 1978
Assignee:
The Boeing Company
Inventors:
Walter Jefferson Harris, Ronald Murray Neufeld
Abstract: In the disclosed aircraft instrument and panel cooling apparatus, each instrument is cooled uniformly and efficiently by air flowing through a plurality of small orifices which surround the large apertures in which the instruments are mounted. The orifices are preferably closely spaced around the instrument apertures with a distance between orifices of the order of two to four orifice diameters and located within a range of up to six orifice diameters from the instrument case so as to provide a plurality of cooling streams of air which tend to coalesce to provide a uniform and tailored sheet of air for maximum cooling efficiency.
Abstract: An electrical system for actuating the inboard spoilers on the wings of an aircraft in response to the lateral control input from the pilot control wheel and to the position of the pilot speed brake lever. The pilot speed brake lever position signal being used to select the modulation provided by a three mode function generator which generates the signal that actuates the spoilers.
Type:
Grant
Filed:
February 4, 1977
Date of Patent:
May 2, 1978
Assignee:
The Boeing Company
Inventors:
Willard Dale Arnquist, Melvin John Roalsvig
Abstract: Method and apparatus are disclosed for determining the straightness of a lumber cut. A transit type of precision telescope is positioned to view in a vertical sweep plane essentially parallel to that of the cut surface of the timber stock on the log carriage. A hand held scale is placed against the cut surface with a constant, spring controlled force in a plurality of positions distributed over the cut surface. The scale is read by the telescope in each position and the readings compared to determine the degree of straightness of the saw cut.