Patents Examined by John McQuade
  • Patent number: 4832545
    Abstract: A mechanism for angularly positioning the work spindle of a program-controlled milling and drilling machine. The positioning mechanism comprises a drive unit mounted on the spindle housing for rotating the spindle after the main drive has been shut off, and a locating member for locating the work spindle when it has reached its predetermined angular position. In accordance with one embodiment of the invention, the drive unit comprises an electric motor the shaft of which is adapted to be selectively coupled by means of a pinion to a gear mounted on the spindle. The locating member is a spring-loaded indexing bolt having a centering cone for engagement in a bore formed in the gear. The electric motor and the indexing bolt are mounted on a pivot plate which is pivoted by an actuating drive from an upper inoperative position to a lower operative position.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 23, 1989
    Assignee: MAHO Aktiengesellschaft
    Inventor: Werner Babel
  • Patent number: 4832616
    Abstract: An electrical connector comprises a connector body having a plurality of longitudinal cavities which include rearward sealing portions, terminals disposed in the cavities and attached to conductors which extend out of the rearward sealing portions of the cavities and elastomeric seal sleeves for sealing the conductor end of the electrical connector. A conductor seal lock attached to the conductor end of the connector body has towers coaxially disposed on the conductors and axially compressing the elastomeric seal sleeves to ensure full insertion of the terminals and the accurate positioning of the terminals in the cavities.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: May 23, 1989
    Assignee: General Motors Corporation
    Inventors: William L. Stein, Sr., Hoi Lui
  • Patent number: 4824393
    Abstract: A socketless light bulb holder in the form of a substantially rigid, plastic bracket including a base affixed to a supporting structure with a generally centrally disposed mounting screw and a pair of terminal screws. The holder also includes a bulb holder portion snugly embracing the base of a light bulb. The terminals on the base of the light bulb are connected to conductor members extending from the terminals on the base of the light bulb to the terminal screws on the base of the holder with the conductor members being soldered to the terminals on the base of the light bulb thereby eliminating the necessity of the light bulb being inserted into and twisted in relation to a light bulb socket in order to mount the light bulb in the socket. In one embodiment of the invention, the holder includes a locking retainer for engagement with one of the bayonet pins which conventionally project radially from the base of the light bulb to mechanically lock the bulb in position.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: April 25, 1989
    Inventor: Joseph M. Armbruster
  • Patent number: 4824405
    Abstract: A self-locking electrical banana plug comprising a main body member having an expandable plug at one end and expansion means operable to expand the plug at the other end, and means for receiving and clamping an electrical conductor to the body member, the expansion means, in operation, concomitantly expanding the plug and clamping the conductor.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: April 25, 1989
    Inventor: Ronald Derain
  • Patent number: 4820179
    Abstract: A multi-contact electrical connector for electrically connecting a plurality of wires to a printed circuit board. The electrical connector includes an open topped housing having a plurality of contact chambers, wire holding sections, and terminal receiving bores, with the terminal receiving bores intersecting lower portions of the contact chambers and extending in parallel to the wire holding sections. Each wire holding section includes a securing arrangement such that the wire placed therein is securely held, and each of the contact chambers accommodates a contact member having a pair of spaced pressing elements, with a space between the pressing elements being narrower than a diameter of a conductor in the wires so that the insulating cladding or cover of the wire is penetrated by side ridges of the pressing elements to allow the conductor of the wire to make an electrical contact with the contact member.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: April 11, 1989
    Assignee: Nippon Acchakutanshi Seizo Kabushiki kaisha
    Inventor: Yoshihiro Saijo
  • Patent number: 4820201
    Abstract: A grounding plate having a flanged edge wall continuously around its periphery is press fit into the open end of a connector part shell. The plate provides a continuous intimate contacting relationship between the plate flange and the inner wall of the connector shell. A plurality of openings are formed in the plate aligned with the connector contacts contained within the connector part. A length of shielding braid, which can be identical to that carried by a cable wire has one open end soldered onto a cable wire shield. A metal ferrule grounding plug has an open end which is soldered or otherwise electrically and mechanially secured to the other end of length of shield braid. The outer end of the grounding plug has a radially outwardly directed flange and a slotted side wall, such that the plug on being inserted into a grounding plate opening is compressed, and then when the flange has passed through the plate it snaps outwardly to lock the plug in place.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: April 11, 1989
    Assignee: G & H Technology, Inc.
    Inventors: Michael K. Van Brunt, Robert J. Nicoletti
  • Patent number: 4815980
    Abstract: A spring clip arrangement is disclosed for a portable battery powered device which provides an efficient chassis retention feature for a slideably removable electrical chassis in unassociated housing. This retention is accomplished without machine screws and no special tools required. This spring clip arrangement also serves as the electrical contact interface for the associated battery power source insertable in a provided battery compartment.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: March 28, 1989
    Assignee: Motorola, Inc.
    Inventors: James V. Lauder, Robert B. Burchett, David H. Karl
  • Patent number: 4813891
    Abstract: An electrically conductive block assembly is provided for positioning contact pins in an electrical connector and dissipating high energy voltage pulses to a ground. A voltage variable material is used to space the pins out of direct contact with the block. The block is in electrical communication with a grounded electrical connector housing. High voltage pulses to the contact pins will divert into the voltage variable material, through the block and to the grounded housing.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: March 21, 1989
    Assignee: G & H Technology, Inc.
    Inventors: Gerald E. Walters, Clinton H. Dutcher, Tian-Peng Tang, Jerry Nurek
  • Patent number: 4812088
    Abstract: A doweling tool for drilling a dowel hole in concrete to facilitate the insertion of dowels, the doweling tool having a guide bar, a support frame for supporting the guide bar, a carriage movingly connected to the guide bar, a pneumatically operated drilling tool having a drill bit connected to the carriage and a pneumatic cylinder having a portion connected to the support frame and another portion connected to the carriage. The pneumatic cylinder is operable to move the carriage and the drilling tool connected thereto in a forward direction for drilling the dowel hole and for moving the carriage and the drilling tool connected thereto in a reverse direction for withdrawing the drilling tool from the dowel hole. The carriage is rollingly supported on the guide bar by a roller assemblies for rolling movement in the forward and reverse direction.
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: March 14, 1989
    Assignee: Wittwer Construction Co., Inc.
    Inventor: Leon M. Hake
  • Patent number: 4810206
    Abstract: A locking electrical connector having male and female connector bodies forming a plug-in type assembly wherein the female connector body has at least one electrical terminal and the male connector body has at least one terminal-receiving socket in axial alignment therewith to form an electrical connection. The locking electrical connector has at least one pin and socket assembly for maintaining the connector bodies in locking connection with each other wherein a socket is on the female connector body. The male connector body has first and second chambers which exit into a recessed mating area and a plunger assembly capable of being displaced within the second chamber for movement therethrough. The pin is at the front end of the plunger assembly and capable of being positioned within the recessed mating area, and the socket is adapted to pass through the first chamber and contact the pin in positive locking engagement when the male and female connector bodies are engaged.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: March 7, 1989
    Assignee: Kings Electronics Co., Inc.
    Inventors: Seymour Rosenfeld, Gino Antonini
  • Patent number: 4810207
    Abstract: Apparatus is disclosed for releaseably and mechanically attaching an electric-motor-driven device (22), such as a ceiling fan, to an overhead support, such as a ceiling (10).
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: March 7, 1989
    Assignee: H. P. Incorporated
    Inventor: William P. Butterfield
  • Patent number: 4808117
    Abstract: A bonding jumper is mounted on one facing surface of first and second coupling means which are threadably interconnected. The bonding jumper has a plurality of resilient detent members for bearing against the facing surface of the other coupling means to establish a redundant electrical bond between the first and second coupling means when the facing surfaces are axially drawn toward each other. A plurality of recesses is provided in the second surface for coacting with the detent means to yieldably resist opposing relative rotation in the unthreading direction.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: February 28, 1989
    Assignee: Stanley Aviation Corporation
    Inventors: Edwin J. Gale, Albert B. Olsen
  • Patent number: 4808125
    Abstract: An electrical connector asembly (10) for mounting to a planar surface (96) has an elongate electrically conductive diecast housing (12) having an aperture (42) therein. A drawn shell (14) having an aperture therein is received in the diecast housing aperture (42). Barbs (60, 62) engage the peripheral edge (50) of flange (46), center drawn shell (14) and assure electrical continuity between drawn shell (14) and diecast housing (12). A burr relief pocket (70) in diecast housing (12) accommodates any burrs (68) from barbs (60, 62) such that flange (46) seats against housing surface (48). A thermoplastic header insert (16) having terminal receiving passages (78) with terminals (82) secured therein is received in and secured in the drawn shell aperture. Insert (16) engages barbs (60, 62) in an interference fit and is centered and partially retained thereby.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: February 28, 1989
    Assignee: AMP Incorporated
    Inventors: Mark H. Waters, Charles Reynolds, John A. Root, Robert N. Whiteman, Jr.
  • Patent number: 4808048
    Abstract: A method and apparatus for compensating displacements of a machine point due to temperature changes, such as the temperature-related displacement of a work spindle axis of a milling machine relative to a machine reference point. The measurement values of the intended positioning of the work spindle axis are determined by means of a position measuring device which includes at least one first sensing device for sensing a measuring scale. A second sensing device connected to a housing of the work spindle through a push rod of a material having a small coefficient of expansion is used to directly determine the temperature-related displacement with respect to direction and magnitude. The determined value is computed into the measurement value of the intended position by means of an analyzing unit. The result is a compensation of the temperature-related displacement of the work spindle axis.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: February 28, 1989
    Assignee: Johannes Heidenhain GmbH
    Inventor: Walter Miller
  • Patent number: 4806124
    Abstract: A connector for a multiple-pin electrical member includes an insulating body with opposed end faces, a side face and a plurality of holes extending between the ends for receiving pins from the member. Grooves in one face connect with the holes, and a longitudinal slot divides the grooves into two sections. Conductive material exists in each groove section and on the one face for connection to a ground. In constructing the connector conductive copper and solder plating is layered on the insulating body, and is selectively removed by mechanical action, wherein the slot is ground by a diamond clad wheel and the faces are ground with grinding pads.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: February 21, 1989
    Assignee: Labinal Components and Systems, Inc.
    Inventor: Robert F. Bowlin
  • Patent number: 4804338
    Abstract: A backshell assembly and method of making and assembling a connection between electrical cable and another electrical device are disclosed. The backshell assembly includes a hollow cylindrical body having a first end for attachment to the other electrical device. A hollow cylindrical nut is provided for attachment to the other end of the backshell body and for entrance of the cable. A hollow cylindrical heat shrinkable tube is provided with its central portion shrunk down and bonded to the nut and with end extensions stress relieved by being heat shrunk and provided with an inside diameter greater than the diameter of the outside surface of the nut.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: February 14, 1989
    Assignee: Sigmaform Corporation
    Inventors: Gary L. Dibble, James H. Reynolds, Susan L. Stene
  • Patent number: 4804340
    Abstract: A transformer terminal block molded from plastic is disclosed having a U-shaped skirt portion fitting in the gap between the coil and the core, to provide the required creepage distance at two adjacent corners of the coil, without the need for taping the corners. The described transformer has a new metallic terminal bay structure which facilitates the assembly of the transformer. The assembly is also facilitated by the described structure of the underside of the terminal base which simplifies the leading of magnetic wires from different windings, terminating on top of the coil, to the respective terminals. The invention presents a substantial simplification of the structure and manufacture of transformers having plastic molded terminal blocks.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: February 14, 1989
    Assignee: Hammond Manufacturing Company Limited
    Inventors: William H. Hamer, Harry H. Barber
  • Patent number: 4802799
    Abstract: A drill bit tip construction wherein the cutting edge at the tip of the drill bit is arranged to cause fragmentation of the chips being removed from the work metal during the drilling operation. The cutting edge of the drill bit at the drilling tip is made to be wavy and, in the illustrated embodiment, is defined by a plurality of segmentally cylindrical grooves extending parallel to the longitudinal extent of the flutes at the tip. In the illustrated embodiment, the grooves have a radius of approximately 0.05" and a length substantially greater than the radius to permit repeated resharpening of the drill bit with resultant reforming of the desired wavy cutting edge in the resharpened tip. In the illustrated embodiment, the cutting edge is formed in an insert secured as by brazing in a diametric slot at the tip. The insert may be formed of a carbide material having optimum cutting characteristics. The grooves are provided in the insert by use of an electric discharge wire cutting machine.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: February 7, 1989
    Assignee: Marken Tool Company
    Inventor: Marko I. Rachev
  • Patent number: 4801273
    Abstract: A socket is described having not only contactors secured to the socket body and electrically connected in an elastically pressed condition of these contactors to a given electrical part mounted but a slide cover slidably fitted to the socket body wherein tapered surfaces are formed in sliding contact areas of such contactors to the slide cover in such a manner that as the slide cover slides a force may be generated to elastically deform and release these contactors from electrical connection to such electrical part.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: January 31, 1989
    Assignee: Texas Instruments Incorporated
    Inventors: Kiyokazu Ikeya, Masanori Yagi
  • Patent number: 4801276
    Abstract: An improved connector assembly for interconnecting the high voltage cable output of a DC power supply to the anode socket embedded in the exterior surface of a cathode ray tube envelope wall, including a terminal having an inner end mechanically connected to the cable and electrically connected to the conductive core thereof and an outer end formed as a female connector, a generally U-shaped stamped spring metal clip having a pair of uniquely configured upstanding arms for electrically and mechanically connecting to the anode socket and having a male-configured connector integral therewith which mechanically and electrically connects with the female connector of the terminal, and a resilient cup having a large cavity which encloses the outer ends of the clip arms and a small cavity which snugly embraces the lower portion of the U-shaped metal clip, including the male connector thereof, and the female connector of the terminal.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: January 31, 1989
    Inventor: Thomas V. Thole