Patents Issued in March 3, 1981
  • Patent number: 4253203
    Abstract: The chair of a transfer bench includes hooks for selectively engaging and disengaging the seat from supporting tracks. Rollers attached to the chair allow the chair to move on the tracks. The bench portion comprises a pair of parallel tubular tracks supported by legs. A pair of safety hooks attached to the underside of the chair loosely engage the tracks and keep the chair from tipping. The legs are normally locked in the open position. For storage purposes it is possible to unlock the legs and fold them up against the track unit. A genital guard is provided on the underside of the seat to insure patient comfort and protection. The apparatus allows the user to transfer into and out of a bathtub or shower with a minimum of inconvenience and a maximum of security.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: March 3, 1981
    Assignee: Temco Products, Inc.
    Inventor: Morton I. Thomas
  • Patent number: 4253204
    Abstract: A complete knockdown type bed furniture assembly including a bed, a wardrobe and a desk is disclosed. The entire structure of the assembly is mainly composed of a variety of panels and boards, or frames removably coupled to one another manually with screw-bolts which, when disassembled, can be laid substantially flat one above another to make themselves a flat compact form without occupying an unnecessarily large space, especially in transportation and storage.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: March 3, 1981
    Inventor: Makoto Tasaka
  • Patent number: 4253205
    Abstract: A sofa or davenport having a foldable bed frame adapted to provide a seat when used as a sofa and a forwardly extending unfolded bed frame when used as a bed. The foldable frame includes pivotally interconnected head, body, intermediate and foot sections and a linkage operable to automatically control extension and contraction of the supporting legs and to control folding and unfolding of the interconnected sections between a fully extended, unfolded position wherein the sections extend over the sofa storage cavity and front rail; and a retracted position wherein the body, intermediate and foot sections are disposed substantially entirely below the plane of the top surface of the front rail of the sofa and the head section is disposed behind the back rest cushion of the sofa.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: March 3, 1981
    Assignee: Leggett & Platt, Incorporated
    Inventor: Aloysius J. Mikos
  • Patent number: 4253206
    Abstract: An inexpensive, light weight body support adapted for use in a casket to support a corpse. The body support consists of a pair of bed sections which are formed from blanks of sheet material such as paper board and which are positioned end-to-end in the casket. When set up, each bed section has a generally flat top panel and depending upright side panels having vertical dimensions that decrease progessively from the head portion to the foot portion to support the corpse in an inclined position. The top panel is scored longitudinally enabling it to sag under the weight of the corpse to restrain its sideways movement in the casket. Triangularly shaped base members are disposed transversely of the bed sections in the casket to support the bed sections by engaging their side panels. A corpse whose weight exceeds a predetermined magnitude will cause the side panels to collapse around the base members lowering the corpse in the casket.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: March 3, 1981
    Inventor: John R. Cherry
  • Patent number: 4253207
    Abstract: A knock-down invalid bed having a main frame supported at its ends by head boards and separable into two halves at its mid-length. Attached to each half are pivoting sections of a pair of tubular mattress-supporting subframes adjustable to support a patient horizontally and in different angular positions. The subframes support two link fabric units separably interconnected crosswise of the mid-length of the bed. Attached to the head board and overlying one end of the bed is a patient helper device to aid the patient in shifting his position in bed, and other useful functions.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: March 3, 1981
    Inventor: Stanley T. Marcyan
  • Patent number: 4253208
    Abstract: A box spring assembly which includes a generally rectangular frame and a wire spring assemblage mounted on the top side of the frame; the assemblage including a large number of straight wires arranged criss-cross fashion and arcuate springs that support and connect the straight wires at some of the points of intersection. A basic wire grid is formed with downwardly extending hook portions that snap over some of the spring wires to secure the grid to the assemblage so as to bridge the spaces between the straight wires. The "spring back" capability of the spring wires allows them to spring into the hook portions so as to retain the grid in position.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: March 3, 1981
    Assignee: Hoover Universal, Inc.
    Inventors: William L. Hancock, John P. Kitchen, Ned W. Mizelle
  • Patent number: 4253209
    Abstract: A transportable sail board has one or more inflatable bladders, and an envelope subdivided into plural demountable longitudinal sections. Rigidifying elements cooperate with bladder and envelope to form a demountable, lengthwise rigid assembly.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: March 3, 1981
    Inventor: Patrick Carn
  • Patent number: 4253210
    Abstract: A metal truss structure which is characterized by chord and web members formed of rectangular tubing and with the chords of double construction to take advantage of the weight and cost savings and high torsional strength of rectangular tubing and arranged for easy and inexpensive fabrication by avoiding precise cutting and difficult welding requirement. This metal truss structure comprises chords, each including a pair of laterally spaced-apart rectangular tubing members positioned flat against opposite sides of the rectangular tubing web members at one corresponding end and welded exclusively by weld lines extending along the longitudinal intersections of the chord members with the web members for simple and automatic welding.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: March 3, 1981
    Inventor: Andre Racicot
  • Patent number: 4253211
    Abstract: Apparatus for cleaning a toilet bowl which comprises a generally u-shaped member having first and second legs which are joined by an arcuate axial portion. The first leg has a sharp point thereon and a weight is disposed on the second leg. An elongated flexible member is fixed to the free end of the second leg and a swab is fixed to the other end of the elongated flexible member.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: March 3, 1981
    Inventor: Fred Mockel
  • Patent number: 4253212
    Abstract: A sound emitting device and/or a light emitting device actuated by brushing movement are provided in the stem of a tooth brush. These devices sense the reciprocating motion and the rotational motion of the brush, and the pressure applied on brushing.The sound emitting device comprises a hollow cylindrical body connected to the stem of the brush and a ball like or columnar movable piece accomodated in the hollow cylindrical body, wherein the movable piece is moved by the motion of the brush in the direction of the axis of the brush so as to hit the end of the inner surface of the hollow cylindrical body for emitting sound. Alternatively, an electrode is provided on the inner wall of the hollow cylindrical body and an electro-conductive movable piece contacts the electrode to form an electrical circuit for emitting sound. For the rotation of the axis of the tooth brush, the movable piece contacts the electrode and a sound is emitted.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: March 3, 1981
    Inventor: Kinya Fujita
  • Patent number: 4253213
    Abstract: A paint brush including a ferrule having a serrated skirt portion providing ribs and grooves which orient the bristle filaments and eliminate any gaps between the bristles and the ferrule. The serrated skirt portion may also slope inwardly and interact with a spacer member to help hold the bristles in the desired oriented condition.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: March 3, 1981
    Assignee: The Wooster Brush Company
    Inventor: Frank Marino
  • Patent number: 4253214
    Abstract: A plasterers trowel designed for finished coats of plaster consisting of an elongated flat rectangular rigid base plate with an elongated handle secured at one end only to the base plate. A flexible resilient essentially non-compressible trowel blade with a smooth lower surface and thickness in the order of 1/8" is secured to the base plate. The trowel blade is formed with a feathered knife edge at its periphery with the periphery of the trowel blade extending beyond the periphery of the base plate.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: March 3, 1981
    Inventor: Richard Bushee
  • Patent number: 4253215
    Abstract: A plurality of lint cotton quality measurements is made on lint cotton which is to be fed into the lint cleaning process in a cotton ginning system. The plurality of cotton quality measurements in the form of individual electrical signals is communicated to a synchronizing means which translates the quality electrical signals into a single electrical output signal fed into a controller which controls the flow of lint cotton into the lint cleaning apparatus.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: March 3, 1981
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventor: Gino J. Mangialardi, Jr.
  • Patent number: 4253216
    Abstract: A removable clip for holding a slip of paper or the like identifying a person or object or describing the history or certain features of an object, the clip comprising a stationary portion having a planar projection and defining a deep bay, and a movable clamp attached to the stationary portion, there being a piece of tape or like adhesive coated sheet applied against the projection and extending into the bay so that the clip can be repeatedly adhered to and removed from the lapel of a suit, a shirt, a piece of equipment, or the like, without damaging the surface to which it is adhered and permitting the replacement of the adhesive sheet as the adhesive weakens so that the effectiveness of the clip is perpetual.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: March 3, 1981
    Inventor: James Brown
  • Patent number: 4253217
    Abstract: Lacing system for ski boots adapted to pull tight the boot flaps around a skier's foot by means of fastener devices comprising each a first over-center hooked latching lever arranged on one of two flaps of the boot uppers, and a connecting link secured to the other of the two flaps of the boot uppers and insertable into adjustment notches provided on the first lever. A second over-center lever has hinge means for hingedly securing it on the above one flap and having pivot means for pivotally supporting thereon the first lever. The pivot means are offset with respect to the hinge means thereby to act through the second lever on the first lever via the pivot means.
    Type: Grant
    Filed: May 24, 1979
    Date of Patent: March 3, 1981
    Assignee: Garmont S.p.A.
    Inventor: Lorenzo Marzocchi
  • Patent number: 4253218
    Abstract: A safety clamp appliance is disclosed formed of a cable or rope housing having opposed walls and a generally U-shaped cross-section, the housing interior being adapted to receive a safety rope, and a brake lever having a pivot point, a brake surface and a handle for attachment to a workman's belt. The brake lever is pivotally mounted in the housing. An actuating spring is provided for spring loading the brake lever, thereby maintaining a constant pressure by the brake surface on the rope. The actuating spring is provided with a quick release for converting the safety clamp appliance from a spring loaded mode to a non-spring loaded mode.
    Type: Grant
    Filed: May 17, 1979
    Date of Patent: March 3, 1981
    Inventor: Peter E. Gibbs
  • Patent number: 4253219
    Abstract: A well slip assembly including a support structure adapted to be placed on a well drilling rotary table and to turn therewith, a vertically movable slip suspending carrier structure, latch means for releasably retaining the carrier structure and slips in a lower active position relative to the support structure, and yielding means urging the carrier structure upwardly to a retracted position. The support structure is desirably formed separately from a slip bowl structure positionable in the rotary table. The carrier structure may be urged upwardly by fluid pressure type spring means, such as air springs, with an accumulator chamber for the pressure fluid system preferably being contained in or carried by the vertically movable slip carrier structure.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: March 3, 1981
    Assignee: Varco International, Inc.
    Inventor: Igor Krasnov
  • Patent number: 4253220
    Abstract: A burial vault including a base and a cover or dome molded from moldable plastic resinous material. The base and cover or dome have reinforcing ribs formed integrally therewith on the inner surfaces of the side and end walls thereof. The base has a pattern of reticulated reinforcing ribs formed integrally with and on the inner surface of the bottom of the base, and the cover or dome has a comparable pattern of reticulated reinforcing ribs formed integrally with and on the inner or lower surface of the top wall of the cover or dome, and the base has reinforcing structures formed integrally therewith at the bottom corners of the base. The base and the cover or dome have reinforcing ribs formed on the inner surfaces of the side and end walls thereof.
    Type: Grant
    Filed: June 13, 1979
    Date of Patent: March 3, 1981
    Assignee: Wilbert, Inc.
    Inventor: Gerald L. Work
  • Patent number: 4253221
    Abstract: A method of making a low voltage field device utilizing a preferentially etched unidirectionally solidified composite as the substrate. In the process, the composite is etched so that the electrically conducting rod-like or fiber phase protrudes above the matrix phase. The tip of the exposed fiber phase may be processed further to provide a rounded or needle-like geometry. Next, a layer of insulating material is deposited in a direction approximately parallel to the axes of the fibers to cause the formation of cone-like deposits of insulating material on the fiber tips which shadow the deposit on the matrix around the fibers and produce conical holes in the layer of insulating material about the fibers. Then, an electrically conductive film is deposited in approximately the same direction to produce on the insulating layer a cellular grid having openings corresponding in number and distribution to the fiber sites. Lastly, the cones of insulating material are removed from the fibers.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: March 3, 1981
    Assignee: Georgia Tech Research Institute
    Inventors: Joe K. Cochran, Jr., Jae-Do Lee, Alan T. Chapman
  • Patent number: 4253222
    Abstract: Apparatus for applying connector terminals to a plurality of leads including tensioning means capable of individually tensioning the leads with a predetermined tension, while being gripped and advanced by clamping means for advancing the leads into a terminal. Also, the clamping means may define a forward end which carries a wire guide plate which, in turn, is adapted to be longitudinally slidable back and forth in the direction of advancement, and is spring-biased into an outward position. The leads pass through apertures of the guide plate for precise positioning, relative to the terminal or terminals. The guide plate is thus retractable to permit the free ends of the leads to project into the terminal. Also, a lead-lengthening probe may be provided.
    Type: Grant
    Filed: August 6, 1979
    Date of Patent: March 3, 1981
    Assignee: Methode Electronics, Inc.
    Inventors: Vincent B. Brown, Donald G. Schreiner
  • Patent number: 4253223
    Abstract: A generally cylindrical, rotatable housing contains, against material axial shifting but with limited permissible lateral shifting, an approximately coaxial peening stem as a peening tool. An outer end of said tool, projecting from the housing, is formed with an encircling, continuous peening groove. The housing is formed with an uninterrupted circular series of inwardly facing projections within which the peening stem extends somewhat loosely. Upon rotation of the housing, forceful holding of a workpiece's metal edge in said groove while the workpiece is moved translationally, causes the peening tool to be rapidly hammered laterally, successively by the projections of said series; this hammering effect being transmitted by said tool to said metal edge whereby said edge is peened and deburred.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: March 3, 1981
    Inventor: Hildaur L. Neilsen
  • Patent number: 4253224
    Abstract: A method of joining tubular elements to provide fluid tight connections is disclosed in which the mating portions of the joined tubes are preformed so as to be able to be located with respect to each other prior to soldering, brazing, or other joining process. The preforming operations involve the punching or shearing of an opening in the sidewall of a body tube to which a branching tube is to be joined, in which shearing operation a pair of cusps or tabs are formed at opposite locations on either side of the sheared hole. The punching or shearing is carried out by a punch tool moved to intercept a segment of the body tube sidewall to form an opening, with portions of the tubing wall on either side of the opening formed remaining, these portions being displaced upwardly by the tool to provide the locating cusps or tabs at the periphery of the opening so-formed.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: March 3, 1981
    Assignee: Brazeway, Inc.
    Inventors: Stephen L. Hickman, Clifford E. Pifer
  • Patent number: 4253225
    Abstract: Method of manufacturing a heat exchanger element with a plurality of helically wound coils. The tubes are wrapped about a forming drum in a parallel abutting relation to each other to form a plurality of helically wound coils. Terminal leads are provided at each end of the coil. Terminal leads at each end of the coils are bent, disposed one inwardly the other so that they are positioned tangent to the same plane, which is perpendicular to the center longitudinal axis of the coils, and then a portion of each terminal lead is cut off and joined to a header.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: March 3, 1981
    Assignee: Carrier Corporation
    Inventors: William E. Wright, Ross Moyer
  • Patent number: 4253226
    Abstract: A base with a central aperture and a post having an axially outwardly open hollow-tipped stem are mounted on a supporting sheet piece to make up either a stud or a socket of a plastic snap fastener. The base is placed in proper position on one side of the supporting piece, while the post is aligned with it on the other side of the supporting piece and is forced to pierce therethrough and to extend through the aperture in the base. The mounting is completed by crashing the hollow walls of the stem under axial pressure while exerting radially inwardly contracting force upon the open hollow tip brim of the stem.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: March 3, 1981
    Inventor: Tadashi Takeda
  • Patent number: 4253227
    Abstract: An improved method and apparatus, and a new metal seal for use in securing overlying portions of generally flat, non-metallic strap with little or no strap bulging under applied seal-closing forces and with a firm interlock between the applied seal and embraced strap portions.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: March 3, 1981
    Assignee: Cyklop Strapping Corporation
    Inventor: Robert E. Bullington
  • Patent number: 4253228
    Abstract: Wound filters of readily varied length are formed by applying yarn to a core on a winding machine utilizing a linkage system that changes the traverse length of the winding apparatus and concurrently changes the rate of change of direction in a ratio different than the ratio of change of traverse length in order to maintain adequately uniform tension during such winding. Such operation also provides for winding yarns of different dynamic characteristics. Apparatus for applying the filters so formed to a variety of support assemblies therefor act on the apparatus formed by such process and apparatus.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: March 3, 1981
    Assignee: Filterspun, Inc.
    Inventor: William G. Easley
  • Patent number: 4253229
    Abstract: A method of making a narrow gate MESFET including the steps of placing a layered mask of nitride and polysilicon over a channel region for self-aligning in a substrate, oxidizing and then removing the polysilicon to reduce the remaining polysilicon width, etching the nitride to the polysilicon width, oxidizing the substrate where the nitride defines the gate therein, removing the nitride, and depositing metal on the gate to form the MESFET Schottky gate. Advantages of the improved MESFET include a relatively higher device gain, greater IC density, a self-aligned Schottky gate, controllable minimum series resistance, a relatively short channel using a conventional photo process, and a n- resistor that may be easily simultaneously fabricated therewith.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: March 3, 1981
    Assignee: Xerox Corporation
    Inventors: Keming Yeh, James L. Reuter
  • Patent number: 4253230
    Abstract: A planar, silicon barrier, Josephson junction and method of forming the jtion which does not require expensive high-resolution, lithography techniques such as electron beam or x-ray. The method includes an etching mask-etch process which forms the basic structure configuration using a (110)-cut silicon wafer. Subsequent to the etching process the mask is removed and a superconducting film is deposited on the previously formed silicon surface to produce a single crystal silicon barrier with good electrical properties.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: March 3, 1981
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Kenneth L. Davis
  • Patent number: 4253231
    Abstract: A planar support member for an electric circuit, e.g. a printed circuit board, wherein at least a region of the support member includes magnetic material through at least a part of its thickness. A magnetic circuit is made in this material by forming at least one opening through it. The support member is then coated with insulative material and conductor paths are made on both faces of the support member by conventional techniques for such members. These paths include a winding disposed around a core part of the magnetic circuit with alternate half turns being formed on opposite faces and interconnected by through plating. The inductive circuit thus formed may constitute an inductor, a transformer or a relay.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: March 3, 1981
    Assignee: Compagnie Industrielle des Telecommunications Cit-Alcatel
    Inventor: Christian Nouet
  • Patent number: 4253232
    Abstract: In an electric battery comprising a plurality of interconnected cells within an insulating casing, internal connections between the cells and to external terminals are provided by a member which is preformed as a single unitary conducting member, secured in the casing while still in unitary form and subsequently severed in situ in the casing to form a plurality of separate connections.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: March 3, 1981
    Assignee: Berec Group Limited
    Inventors: Brian S. Bennett, Bruce A. A. Gray, Michael A. Todd
  • Patent number: 4253233
    Abstract: An electrical accessory having a lead is connected to an electrical cord having a multi-strand conductor by placing the cord and the lead against a backing member. A tool member vibrated at an ultrasonic frequency is brought into engagement with the electrical cord. Insulative material surrounding the conductor is melted and displaced away from the tool member. The conductor is driven against the lead and the lead is driven into the surface of the backing member. Upon de-energization of the tool member, the displaced insulative material solidifies and secures the connection between the conductor and the lead.The tool member includes a tip from which a sharpened projecting portion extends. The projecting portion severs the conductor in those instances where the conductor is to be connected to spaced leads. Serrated driving surfaces are positioned on either side of the projecting member.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: March 3, 1981
    Assignee: General Electric Company
    Inventors: Steven N. Lovrekovic, Harry J. Bowers, Jr.
  • Patent number: 4253234
    Abstract: A method of making an electrical contact wherein the contact includes a plurality of axially aligned wires (200) extending from a forward end (110) of a holder which has a rear portion (130) for receiving an electrical conductor (300). The holder (100) is manufactured by stamping it as a flat metallic piece with enlarged forward and rear portions then forming the forward portion (110) in a die to form a socket like portion for the plurality of fine, axially aligned wires and forming the rear portion (130) to receive the conductor (300).
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: March 3, 1981
    Assignee: The Bendix Corporation
    Inventors: Paul D. Niles, Richard W. Normann
  • Patent number: 4253235
    Abstract: A shaving system including a razor handle and a replaceable blade assembly, the handle having first and second arms with first and second journals thereon, the arms being movable away from each other in such manner as to cause the journals to move away from each other along a common axis, a spring for biasing the arms toward each other, and a cam disposed on each of the arms, and a blade assembly including a housing having first and second journal bearings for receiving the first and second journals for pivotal mounting of the blade assembly on the handle, and cam surfaces for complemental engagement with the handle cams, the cam surfaces and handle cams cooperating to urge the blade assembly to a neutral position.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: March 3, 1981
    Assignee: The Gillette Company
    Inventor: Chester F. Jacobson
  • Patent number: 4253236
    Abstract: A razor blade assembly is provided with blade means mounted in a housing adapted to be connected to arms of a razor handle. The housing is provided with journal bearings for receiving journals on the arms of the razor handle. The housing is further provided with cam means at either end thereof. The journal bearing means form a pivot axis for pivotal movement of the razor blade assembly thereabout and the housing cam means is in engagement with biasing means on each arm of the handle when the blade assembly is mounted on the razor handle.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: March 3, 1981
    Assignee: The Gillette Company
    Inventor: Chester F. Jacobson
  • Patent number: 4253237
    Abstract: A razor handle for a razor blade assembly adapted to be pivotally mounted on the handle, the razor handle having first and second arm portions with journal means disposed thereon for pivotal connection to journal bearing means on the blade assembly, each arm portion having cam means thereon engageable with complementary cam means on the blade assembly, the cam means cooperating to urge the pivotally mounted blade assembly toward a neutral position.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: March 3, 1981
    Assignee: The Gillette Company
    Inventor: Chester F. Jacobson
  • Patent number: 4253238
    Abstract: In a filament type trimmer a filament is wound on a storage spool in a rotating housing and exits through an opening in a rim portion of the housing. When the extending portion of the filament is rotating freely, it extends approximately radially from the housing. However, when it hits a relatively stationary object, it is deflected rearwardly so as to extend approximately tangentially from the housing. To avoid high stresses in the exiting portion of the filament, the exit opening is inclined rearwardly so that when the filament is deflected rearwardly by striking an object, it extends in a tangential line off of the spool, thereby avoiding bending stresses at the exit opening.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: March 3, 1981
    Assignee: Textron, Inc.
    Inventor: John D. Sheldon
  • Patent number: 4253239
    Abstract: A hand-held portable length probe having a length measuring wheel and a tracing unit disposed adjacent the measuring wheel, the tracing unit being slidably carried by the probe housing and acting to actuate a switch secured in fixed relation on the probe housing. The switch is illustrated as a miniature snap action switch, actuated by the slidable tracing unit either directly or indirectly through an intermediate adjustable spring lever arm; and is also illustrated as a magnetically actuated switch in the form of a reed switch which is actuated by a permanent magnet carried by the sliding tracing unit. The wheel is carried in a removable nose element which serves to aid in anchoring the tracing unit housing to the length probe main housing. The switch is carried, in the illustrative examples, by a retention clip.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: March 3, 1981
    Assignee: Electronic Modules Corporation
    Inventor: David J. Houck
  • Patent number: 4253240
    Abstract: A measurement apparatus includes a measuring rod with a contact surface for contacting a workpiece. One or more proximity sensors is mounted on the measuring rod adjacent the contact surface. A brake shoe, responsive to the output of the proximity sensor, is provided to automatically clamp the rod in place when the sensor detects a surface interruption in the workpiece in order to prevent the rod from dipping into the interruption. The apparatus also includes a pair of leaf springs arranged to lift the rod and to separate the contact surface from the workpiece when the rod is clamped by the brake shoe.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: March 3, 1981
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventor: Kurt Feichtinger
  • Patent number: 4253241
    Abstract: A bore gauge for measuring the internal diameter of tubes comprises at least two concentrically and rotatably arranged members connected by a helically wound spring member. The spring member is capable of contacting the inside surface of the tube and causing relative rotation of the members thereby indicating the internal diameter of the tube.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: March 3, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: William F. Nanstiel, Jr.
  • Patent number: 4253242
    Abstract: A digital angle indicator for the measurement of predetermined angles. The indicator comprises a rotatably mounted gravity responsive opaque rotor having transparent slots therein for selectively passing light from light sources to light detectors, said light detectors being connected to a plurality of visual indicators through a digital logic circuit for activating said visual indicators in response to said light detectors. The visual indicators provide an indication of the attainment of the angle being measure and values greater or lesser than the desired angle.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: March 3, 1981
    Inventor: Terrance M. McInerney
  • Patent number: 4253243
    Abstract: An improvement in method and apparatus for drying seed cotton to a predetermined range of moisture content; including the steps and means for performing the steps of passing the cotton in contact with a first moisture sensor, subsequently passing the cotton through a drying system, subsequently passing the cotton into contact with a second moisture sensor located outside of the drying system, and using the combination of signals from the sensors to control the amount of moisture removed from the cotton while in the drying system; characterized by employing a plurality of the first moisture sensors so connected that the moisture sensors sensing the least moisture content will have its signal used in the combination of signals to control the amount of moisture removed. This compensates for a problem in the prior art of having a moist leaf or the like cause excessive drying of the seed cotton because of the high moisture contents sensed.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: March 3, 1981
    Inventor: Paul L. Whelan
  • Patent number: 4253244
    Abstract: A low-temperature grain drying/aeration system includes a controller having an initialization circuit which is programmed on the basis of long term computer simulation of the low-temperature drying process to respond to inputs representing initial conditions such as harvest date, harvest moisture and air flow rate, and control a dry down indicator to indicate the probability of drying success and the time of completion of the drying. The controller responds to control outputs provided by the initialization circuit to provide humidistatic control of fan and heater operation during the drying operation, and to permit heater operation only when supplemental heat is desirable. At the end of the normal drying season, the controller automatically transfers operation from the drying mode to an aeration mode to provide periodic ventilation of the stored grain, and effects shut down of the system when conditioning of the grain is completed.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: March 3, 1981
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Glenn A. Kranzler
  • Patent number: 4253245
    Abstract: This disclosure is of a device for controlling the flow of steam in paper machine dryers wherein a positive displacement pump is used to create differential and condensate evacuation from the paper machine dryers. This invention is applicable to a single steam heated drum or a plurality of such drums. It can be used in either a recirculating or cascading system.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: March 3, 1981
    Assignee: Union Camp Corporation
    Inventor: Robert D. Perrault
  • Patent number: 4253246
    Abstract: The invention relates to installations for the treatment in a gaseous medium of a strip material passing over rollers (6).Each roller (6) is driven in rotation by an endless belt (10) serving also for the embarkment of the strip, this endless belt passing over drive pulleys (15) which drive the corresponding roller (6) by coupling means (101) ensuring a "free wheel" function and a "coupler" function.The installation is useful for the heat treatment, especially the drying of a strip material.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: March 3, 1981
    Assignee: Air Industrie
    Inventor: Paul Marchal
  • Patent number: 4253247
    Abstract: The specification discloses a hot gas distributor in a paper making machine. The distributor includes a pipe supported by end plates and supporting an elongated hood divided by partitions into a multitude of chambers. Centered in each chamber is a tubular nozzle extending through aligned holes in the pipe. Hot gas in the pipe flows into the nozzle through ports in the nozzle and down through the nozzle into the chamber and through a slotted arcuate plate forming the bottom of the chamber. Adapter blocks on the pipe support the nozzles and bonnets which support pneumatic actuators and through which connecting rods extend. A piston-like control plug or valve member on the rod closes the ports in nozzles to the extents that the pneumatic actuators are set to differentially dry a paper web just below the hood.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: March 3, 1981
    Assignee: Eppco, Inc.
    Inventor: William E. Bergstrom
  • Patent number: 4253248
    Abstract: Printed matter is positioned behind a reflective and transparent surface. A lamp illuminates the printing. A student is instructed to copy the material on a typewriter. When a student begins typing, the lamp turns off and remains off until a predetermined interval after typing has stopped. The lamp relights, displaying the printed matter through the printed matter screen and when the student begins typing again the lamp turns off, hiding the printed matter. The process is repeated until the task is completed or a preselected time expires.The student is encouraged to type more during each successive interval, which encourages the student to remember words and groups of words and to comprehend.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: March 3, 1981
    Inventor: Judson E. Cornish
  • Patent number: 4253249
    Abstract: The effects of any errors in the preliminary tracking of a target, and of any subsequent changes in the velocity of the target, are included in simulated firing of a gun 3, by slewing a laser projector 2 in the simulator for the predicted shell time-of-flight at the rate assessed during the preliminary tracking and then scanning with the laser for hit/miss determination. The slewing is achieved either by having the gun control system slew at the required rate, or by having the gunner continue tracking the target, corrections for deviations from the required rate being automatically applied to the projector.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: March 3, 1981
    Assignee: The Solartron Electronic Group Limited
    Inventors: David W. Ashford, William B. Davies, Sydney S. Hartley
  • Patent number: 4253250
    Abstract: A shoe fastener, particularly for skiing boots, including a tightening member which acts on a tension element, and a device for fixing the tension element and for selecting the effective length thereof. The device for fixing the tension element includes a groove which tapers toward its bottom and extends in the longitudinal direction of the tension element and is defined by side faces, at least one of which is formed with ribs, each of which at least at its end near the bottom of the groove extends transversely to the longitudinal axis of the groove and each rib and the pulling direction of the tension element inserted in the groove includes an angle which is open toward the open side of the groove and exceeds 90.degree..
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: March 3, 1981
    Assignee: Polyair Produkt Design Gesellschaft m.b.H.
    Inventors: Erwin Weigl, Axel Kubelka
  • Patent number: 4253251
    Abstract: The present invention relates to a ski boot including a foot-retaining system; the ski boot has a rigid shell; the metatarsal and instep retaining systems are assembled to the rigid shell by means of a base with which they are associated; the shell is molded onto the base and the assembly is achieved by means of tenon and mortise systems; the tension of the foot-retaining system of the ski boot is controlled by adjustable tensioning elements. The ski boot, and the method whereby it is manufactured, make it possible to automate the production process; more particularly, they facilitate the assembly of the foot-retaining system to the interior of the shell.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 3, 1981
    Assignee: Etablissements Francois Salomon et Fils
    Inventor: Georges P. J. Salomon
  • Patent number: 4253252
    Abstract: A ski boot comprising an outer boot having a sole on which an improved foot supporting insert rests, the insert including a footbed supported by a rear heel balance post, a central metatarsal balance pad and a forward toe balance pad, the insert forming and holding the foot of a skier in a functional cavus or high-arched foot positon when a foot is placed thereon and being laterally tiltable relative to the sole within the boot upon inversion or eversion of the foot thereby creating a weight shift which is transferred to a lateral edge of a ski attached to the boot causing the ski to turn.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: March 3, 1981
    Inventor: Joel H. Eisenberg