Patents by Inventor John C. Lewis

John C. Lewis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4684283
    Abstract: A socket adapter for use with a broom block, the socket adapter for receiving a threaded handle such that the release torque required to remove the handle is aggrandized, i.e. greater than the application torque required to attach the handle. The socket adapter comprises a tube having an annular lip for abutting against a corresponding lip adjacent the threads of the handle and at least one thread on the tube. The thread begins a predetermined distance below the annular lip such that an expansion space is formed above the thread to provide a space into which the handle thread material may expand. Upon tightening the handle in the socket adapter with a predetermined amount of attachment torque, the handle material will expand into the expansion space and create an attachment between the handle and the socket requiring a release torque greater than the attachment torque to remove the handle.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: August 4, 1987
    Assignee: The Drackett Company
    Inventor: John C. Lewis, Jr.
  • Patent number: 4619485
    Abstract: A method for manufacturing synthetic brushes comprising synthetic filament fused directly to a synthetic polymer substrate is disclosed. A plurality of brush backs are formed integrally on a frame. The brush backs are then held stationary while a picking plate having a plurality of pickers, in a design of brushes, is indexed into a stock box and filled with tufts of synthetic filaments. The picking plate is then indexed out of the stock box and into a heated plate to fuse the ends of each tuft. The picking plate with tufts is then indexed into the frame-holding means whereby each of the fused ends is simultaneously mounted on each of the brush backs. In this way, a plurality of brushes are simultaneously formed. The brushes may then be packaged on the frame or individual gates severed to permit packaging of individual brushes.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: October 28, 1986
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4607411
    Abstract: A combination push-type broom and squeegee blade constructed from a molded thermoplastic block is disclosed. The device is suitable for both sweeping and applications of surfacing materials such as driveway coater chemicals. The brush block consists of a thermoplastic molded block having an integral squeegee blade. The blade is molded in a predetermined cross-section and interconnected with the block by an integral thermoplastic, thin hinge connector. Pivot stops are provided on the blade so that the blade will pivot a predetermined arc relative to the brush block. Tufts may be mounted in the conventional fashion on an opposite face of the brush block. The brush block further includes a conventional handle to form the push broom coater device of this invention.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: August 26, 1986
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4531036
    Abstract: A method and apparatus for hardening a small internal passage in a workpiece wherein the workpiece is indexed into coaxial alignment between axially spaced inductor coils and an actuator telescopically inserts a magnetically permeable flux concentrating rod through the passage, and coextensive with the coils and in inductive relationship with the interior surface, such that upon energization of the coils, flux is concentrated in the concentrating rod and effectively inductively delivered to the surface to raise the temperature thereof to a heat treating temperature, the actuator being extended to another position wherein a quenching ring is disposed adjacent to the surface for delivering coolant thereto to quench harden the surface, the actuator being finally retracted to allow sequential indexing of workpieces.
    Type: Grant
    Filed: April 20, 1984
    Date of Patent: July 23, 1985
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4501942
    Abstract: Method and apparatus for uniformly heating a workpiece such as a sucker rod or the like having a uniform cross-section over a major portion of its length and an enlargement adjacent each end thereof. A multi-turn inductor is coaxially disposed around a portion of an elongated workpath with the rod being longitudinally moved at some preselected rate of travel along the workpath toward the inductor entrance end. The inductor is normally at a first level of energization adapted to inductively heat the rod major portion to some predetermined temperature as it passes through the inductor. Sensing a preselected power absorption level by the rod as the enlargement adjacent the leading end is inductively coupled with the inductor causes the inductor to be automatically placed at a second, higher level of energization for heating the enlargement to the predetermined temperature.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: February 26, 1985
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4482793
    Abstract: A device for inductively heating simultaneously and alike a plurality of identical elongated workpieces each having at least two axially spaced portions, to produce identical predetermined heat profiles in the workpiece throughout their longitudinal extents. The workpieces are conveyed at a predetermined uniform speed along work paths extending in a linear direction. A plurality of like multi-turn induction heating coils are coaxially disposed along the work paths and connected to a two-level power source. A reciprocal stop aligns the leading ends of the workpieces along the feed paths relative to the heating coils. The coils are at a first level of energization adapted to inductively heat the first axial portion of the respective workpieces identically to the same predetermined temperature as they pass through the coils.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: November 13, 1984
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4420667
    Abstract: Elongated workpieces having an extended intermediate portion of substantially uniform cross-section and axially spaced end or other portions of enlarged cross-section are inductively heated to a desired surface temperature by axially moving them at a continuous rate of speed coaxially of and sequentially through a succession of three axially aligned multiturn induction heating coils and energizing selective ones of the heating coils, during the passage therethrough of selected ones of the workpiece portions to inductively heat the same to the desired surface temperature. The coils have separate power supply circuits for energizing the coils, and suitable control means are provided for activating the power supply circuits to energize the coils in succession and during the travel of the selected portions of the workpiece through selected ones of the heating coils.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: December 13, 1983
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4418259
    Abstract: A method for uniformly heating an elongated workpiece having a first portion with uniform cross-section over a major portion of the workpiece length and a second portion having a larger cross-section than the first portion. A multi-turn inductor is operatively mounted on a carriage or the like and is coaxially disposed about an elongated workpath. The carriage is selectively movable axially of the workpath from a first or home position. As the workpiece first portion is fed along the workpath at some preselected rate of travel into and through the inductor, it is heated to a desired temperature over the length thereof. The inductor carriage is energized as the enlarged workpiece second portion enters the inductor so that the inductor will travel along the workpath with the workpiece. Such travel increases the heating time for the second portion so that it too is heated to the desired temperature. After a predetermined time interval, the carriage movement is reversed back toward the first or home position.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: November 29, 1983
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4348060
    Abstract: A method for making flared, tufted, brush constructions is disclosed. A plurality of synthetic filament tufts are picked, and the ends fused. Simultaneously, the fused ends are mounted parallel on a heat softened, thermoplastic support. Before the support cools, it is deformed to a convex configuration so that when the support cools, a flared, tufted construction is formed, suitable for mounting on a handle. The support may also be deformed to a concave configuration so that the tufts converge.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: September 7, 1982
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4307278
    Abstract: A device for controlling the heat generated by induction coils in a multiple induction heating coil furnace. Multiple induction coils provide parallel cylindrical passages having axial lengths and fixed diameters through which elongated workpieces are movable in the axial direction. The axial length of one induction coil is fixed while the other coils have variable lengths as a result of an arrangement for altering the distance between first and second ends of the induction coils. Sensors detect the temperatures of workpieces within each induction coil and a comparison of the detected temperature reveals the difference between the variable and fixed axial length induction coils. The axial length of the coils are shortened in the event that the detected temperature is greater than that of the workpiece in the fixed axial length coil, and conversely, lengthened in the event that the detected temperature is less than that of a workpiece in the fixed axial length coil.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: December 22, 1981
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4291431
    Abstract: A method and apparatus for making flared, tufted, brush constructions is disclosed. A plurality of synthetic filament tufts are picked, and the ends fused. Simultaneously, the fused ends are mounted parallel on a heat softened, thermoplastic support. Before the support cools, it is deformed to a convex configuration so that when the support cools, a flared, tufted construction is formed, suitable for mounting on a handle. The support may also be deformed to a concave configuration so that the tufts converge.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: September 29, 1981
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4189189
    Abstract: Apparatus for making flared, tufted, brush constructions is disclosed. A plurality of synthetic filament tufts are picked, and the ends fused. Simultaneously, the fused ends are mounted parallel on a heat softened, thermoplastic support. Before the support cools, it is deformed to a convex configuration so that when the support cools, a flared, tufted construction is formed, suitable for mounting on a handle. The support may also be deformed to a concave configuration so that the tufts converge.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: February 19, 1980
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4114010
    Abstract: An auxiliary electrical test circuit is provided which is adapted to assist in matching the resonant frequency of an induction heating load with the rated frequency range of a solid state high frequency power source coupled to the load circuit. The load circuit includes an inductor, power factor correction capacitors, and a given workpiece to be inductively heated. The test circuit includes an audio frequency oscillator of low output power having an output frequency which may be adjusted in a range extending below and above the rated frequency range of the solid state power source. The oscillator output is coupled to the load circuit independent of the solid state power source, and the output frequency of the oscillator is adjusted to coincide with the resonant frequency of the load circuit, which coincidence is determined by observing the peak voltage obtained during adjustment of the oscillator output frequency.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: September 12, 1978
    Assignee: Park-Ohio Industries, Inc.
    Inventor: John C. Lewis
  • Patent number: 4109965
    Abstract: This invention relates to new and useful brush making apparatus which allows the manufacture of a wide variety of different type brush constructions having flared tufts. The apparatus is capable of picking, trimming and assembling all the synthetic filament tufts required in a tufted brush construction simultaneously and fusing the tufts at different angles from one another onto a separate substrate. The apparatus comprises a filament stock box for dispensing cut-to-length synthetic filament, a new and improved picking element containing movable means for changing the parallel attitude of at least two adjacent picker tubes, melting means for fusing one end of the synthetic filament, and mounting means for attaching fused filament ends onto a substrate.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: August 29, 1978
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.
  • Patent number: 4009910
    Abstract: This invention relates to new and useful brush making apparatus which allows the manufacture of a wide variety of different types of constructions having pretrimmed synthetic filament units. The apparatus is capable of picking and trimming all the synthetic filament required in a single tufted construction simultaneously and simultaneously assembling said filament into said construction. The apparatus comprises a filament stock box for dispensing cut-to-length synthetic filament, a new and improved picking element containing trimming and internal wedge means, which when inserted into the stock box will pick and trim the desired construction, and means for fusing the end of the picked construction and for mounting the prefused end thereof to form a filament construction.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: March 1, 1977
    Assignee: Tucel Industries, Inc.
    Inventor: John C. Lewis, Jr.