Patents Represented by Law Firm Van Valkenburgh and Lowe
  • Patent number: 4154064
    Abstract: Costume jewelry is manufactured through photofabrication processes from flat metal sheets to form items such as earrings and small pendants. A standard photo-fabrication operation includes covering a metal sheet with a layer of photosensitive, chemically resistive material commonly referred to as a photoresist. Portions of the covered sheet are exposed to light to outline the earrings and pendants on the sheet. The sheet is then developed and the exposed metal surface portions are chemically etched to remove excess metal and form the earrings and pendants. Thereafter, surface treatments involve supplementary photofabrication operations to provide different colors and finishes on the earrings and pendants by etching, plating and staining the exposed metal surfaces, all of which are supplemented by the retention of portions of photoresist layers of selected colors.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: May 15, 1979
    Inventor: Lee J. Droege
  • Patent number: 4111187
    Abstract: A modular unit collector for collecting radiant solar energy to heat a fluid such as water is adapted to be mounted at an inclination to better receive radiant solar rays and to permit gravity drainage of the fluid from the unit. The components include an upper surface and a lower surface forming a cavity. The upper surface includes an outer radiation transmission sheet and an inner radiation absorption sheet spaced from the transmission sheet and the lower surface includes a drainage pan formed to facilitate drainage to a lower end of the unit whenever it is inclined. The upper and lower surfaces are interconnected at the side edges and upper and lower end cap means at each end of the unit close the cavity. A spray means extends into the cavity to spray fluid against the undersurface of the radiation absorption sheet and there is a drainage outlet means adjacent to the lower end cap means.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: September 5, 1978
    Assignee: Solar Energy Research Corp.
    Inventor: James B. Wiegand
  • Patent number: 4100996
    Abstract: The present invention is a shock absorber for a safety belt lanyard. It comprises, in essence, a strap-like web of strength sufficient to check a fall, having a short base portion at one end and a free reach constituting the remainder. The end of the base portion connects with the center bar of a three-bar slide and the junction between the base portion and the free reach is a connector loop to connect with a lanyard or safety belt. The free reach, commencing at the loop, has its extended end threaded through the three-bar slide to terminate as a second connector loop opposite the first mentioned connector loop to connect with the safety belt or lanyard. The free reach of the web is folded against the base to provide a compact package which is enclosed in a disruptible cover to complete the unit. In use, the free reach is pulled through the three-bar slide to provide the necessary resistance to decelerate the fall.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: July 18, 1978
    Inventor: Jonathan E. Sharp
  • Patent number: 4098248
    Abstract: A large, two-cycle, port-scavenging gas engine commonly used for oil field pumping operations includes a mixing section at the intake of the scavenging chamber. Fuel gas flows through a supply line directly into this mixing section in a continuous manner controlled only by a governor valve at the gas inflow line. In contrast, the air intake fluctuates cyclically as the engine piston reciprocates. The present invention is a fuel regulator for such an engine which is a gas inflow control such as found in certain types of carburetors. Thus, the maximum gas inflow is regulated by the governor valve at the inflow line, but the fuel regulator of the gas inflow control restricts the fuel gas inflow to an amount proportional to the air inflow as the air inflow fluctuates.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: July 4, 1978
    Inventor: William L. Todd
  • Patent number: 4079520
    Abstract: A position indicator to properly incline and set a golf club. The indicator includes a positioning head mounted upon a clamp which is secured to the shaft of a golf club. The positioning head includes a cup carrying a spherical level, a bubble in fluid beneath a spherical glass. The glass is marked to center the level bubble and to indicate direction alignment. The connection between the positioning head and the clamp is essentially a ball and socket joint. A lock screw ties the two components together whenever the position indicator is properly set.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: March 21, 1978
    Inventor: Carl B. Davis
  • Patent number: 4076021
    Abstract: This invention is a positive pressure respiratory apparatus to cyclically pump proper volumes of air for inspiration by a patient, through a breathing tube extended to the patient. The unit, formed in a compact package, includes a pump, a piston within a cylinder and a breathing tube extending from the cylinder to the patient. The cylinder volume does not greatly exceed the proper volume of air for inspiration by a patient. The piston is cyclically reciprocated within the cylinder at a rate which corresponds to natural or selected inspiration and exhalation breathing cycles of the patient, and this piston moves in the cylinder a distance sufficient to displace the aforesaid volume of air. A valving means permits air to enter the cylinder during the patient's exhalation cycle of breathing when the piston moves away from the cylinder end and to confine the flow of air to the breathing tube during the inspiration cycle, when the piston moves towards the cylinder end wall.
    Type: Grant
    Filed: July 28, 1976
    Date of Patent: February 28, 1978
    Inventor: Harris A. Thompson
  • Patent number: 4075071
    Abstract: A process for the treatment of essential oils per se and wood containing essential oils to convert a substantial portion of the oils to wood sugars and to change the structure of wood to render the same susceptible to bacterial action. It is to be noted that the essential oils are inhibitors of bacterial growth and as such they prevent wood from being digestible by bacteria. The process consists essentially in blending the essential oils or immersing wood particles containing essential oils into an electrolyte solution which may be formed by common salts such as NaCl. Passing an electrical current through the solution, using a metal anode which is eaten away during the process, converts the oils to wood sugars and also changes the wood structure in such a manner as to render the same susceptible to digestion by bacteria such as Rumen flora and Termite flora.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: February 21, 1978
    Inventor: Robert N. Kirschbaum
  • Patent number: 4068455
    Abstract: The invention disclosed herein is a debris bag for a push-type lawn comber. Such a lawn comber is representative of similar devices such as lawn mowers and sweepers, in are provided with a rearwardly extended push handle. The lawn comber carries an array of radial impact arms upon a transverse shaft within the body of the comber. Rotation of the shaft and impact arms upon it by a power drive throws debris through a chute at the rear of the machine. A bag is carried upon a frame which latches itself to the chute and cantilevers rearwardly from the chute to define the top of the bag. A closure cover fits over this bag top to enclose it when the unit is n operation. A lever is used to engage the impact arm shaft with the power drive. Whenever the lever is depressed rearwardly alongside the bag, engagement occurs.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: January 17, 1978
    Assignee: Bluebird International, Inc.
    Inventors: Claude D. Zehrung, Jr., Clarence L. Urie, Joseph C. Martinez
  • Patent number: 4046495
    Abstract: A fluid dispenser pump having a piston extending from one end of a cylinder with resilient means urging the piston from the cylinder to its extended position for manual movement into the cylinder to its retracted position, said piston and cylinder being elastomeric plastic members, with complementary cylindrical walls forming a sequence of chambers. An inlet chamber communicates with a fluid supply. An auxiliary pressure chamber is normally sealed from the inlet chamber, but it communicates with the inlet chamber whenever the piston is at its fully extended position. An operating chamber communicates with the auxiliary pressure chamber and a first check valve means between the chamber permits flow from the auxiliary pressure chamber to the working chamber, but prevents a reversal of such flow. A discharge chamber communicates with the working chamber and a second check valve means between the chambers permits flow from the working chamber to the discharge chamber but prevents a reversal of such flow.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: September 6, 1977
    Inventor: Bruce F. Grimm, Jr.
  • Patent number: 4045138
    Abstract: The invention concerns the application of a filler strip to an eye wire rim of a glasses frame to more securely hold a lens in place. The filler strip is provided as a viscous liquid which is applied to the eye wire rim as a bead extending along a selected reach in the rim. The viscous liquid will quickly harden to a resilient solid forming a seat in the eye wire rim to receive the edge of the lens.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: August 30, 1977
    Assignee: Prado Verde, Inc.
    Inventors: Donald M. Kunde, Frank M. Lagrimanta
  • Patent number: 4034828
    Abstract: The invention is a two component, shock-absorbing cable connector to secure a workman to a vertically-suspended safety cable; the first component, a U-shaped shoe, is placed upon the cable with the cable at the crotch of the shoe; the second component, a head combining a slide bar, cams and a handle, is fitted and latched between the sides of the shoe with the slide bar bearing against the cable; the cams include a face engaging the slide bar and outward arms connecting with the handle; these cams operate in unison to press the slide bar against the cable responsive to downward movement of the handle; the handle is attached by a lanyard or other connector to a safety belt or harness worn by the workman; thus, a fall of the workman will be checked by the connector as the weight of the workman pulls the handle downwardly to shift the cams, forcing the slide bar against the cable and squeezing the cable between the shoe crotch and the slide bar.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: July 12, 1977
    Assignee: Rose Manufacturing Company
    Inventors: Clarence W. Rose, Fredies M. Elmore
  • Patent number: 4030396
    Abstract: A pickup for a musical instrument to be mounted upon the musical instrument to amplify the tones thereof. The invention consists in adding a mass significantly greater than the weight of the transducer within the pickup in such a manner as to permit the transducer to act against this mass when picking up vibrations, with the result of improving and sustaining tones produced by the instrument, and also, in significantly increasing the output of the transducer.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: June 21, 1977
    Inventor: Ralph E. Mariner
  • Patent number: 4029352
    Abstract: A foldable hand rail for the side entrance of a camper trailer. The top end of the hand rail is pivotally carried in a bracket mounted upon the side of the camper trailer, and the hand rail may swing from a down-hanging, folded position alongside the camper wall to an outwardly-inclined position for use. This hand rail is supported by a strut. The bottom end of the strut is pivotally connected to a bracket upon the side of the camper trailer. It will thus swing from a folded position against the side of the camper and under the hand rail to an outwardly-inclined position where the top of the strut supports the extended end of the hand rail. A throw arm connects the hand rail and strut. One end of the throw arm is pivoted to an intermediate point on the hand rail and the other end is pivoted to the upper end of the strut. Thus, it may swing from a first position when the two components are retracted against the side of the camper trailer to an opposite position when the components are extended.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: June 14, 1977
    Assignees: Lee T. Evans, Luella Evans
    Inventor: Lee T. Evans
  • Patent number: 4028868
    Abstract: A towable, wheel-mounted yard maintenance apparatus which may be a lawn comber having impact arms, a lawn mower having a cutting reel, or a sweeper having a cylindrical brush. The working elements, for example the impact arms, are carried upon a shaft within a transverse housing. This housing and the wheels are carried within the embrace of a structural frame. The frame extends in front of, and a short distance beyond each side of the housing to serve as a bumper which prevents the housing from coming too close to an obstruction such as a post or a tree. The frame also protects the wheels from such obstructions. The rear end of the housing is pivoted to the frame and the front end is attached to the frame by a height-adjustment linkage actuated by an adjusting screw which is locked in place whenever the height of the unit is proper for operation.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: June 14, 1977
    Assignee: Bluebird International, Inc.
    Inventor: Claude D. Zehrung, Jr.
  • Patent number: 4023474
    Abstract: A device for toasting bread or other toastable food items over a fire or camping stove, particularly over butane type burners, consisting of two hinged plates with a series of various size holes therethrough with the plates designed to rest over the stove or fire in the shape of a triangle, with the plates being provided with grids to support the toasted item near but away from the plates, with each plate also being provided with a flange to support the toasted item at a predetermined distance above the heat. The toaster is also provided with a heat shield on each side of the toaster consisting of a metal plate which is hingably attached to one of the toasting plates and is snapped onto the other toasting plate to maintain the toasting plates in an open position during toasting, with the heating plates diverting the heat from the stove or fire to the inside surfaces of the toasting plates.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: May 17, 1977
    Inventor: Robert C. Dixon
  • Patent number: 4008818
    Abstract: A fork-like array of arms is located at an end of a haystack wagon which will function to hold, to pick up or to release a haystack onto or from a haystack wagon. The arms may be rigidly held in place, or may swing to various positions depending upon the type of haystack being handled. In the present invention, the arms are arranged to reciprocate in alternate sequences with respect to each other, whereby some of the arms will be at rest with respect to the haystack, while other of the arms are moving into or out of it. With such reciprocation, a stack of hay bales may be easily picked up or discharged onto and from a bale wagon or a haystack may be easily picked up and moved onto a hay wagon.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: February 22, 1977
    Inventor: Allan B. Neely, Jr.
  • Patent number: 4004612
    Abstract: A remote control for a large-area sprinkler system, where the sprinklers are to be operated in a sequential manner according to a specified program. The sprinklers are hydraulically operated and are controlled by a four-way latch valve whose piston, or core, will shift to either a sprinkler-open state or a sprinkler-closed state, the shifting being by energizing opposing solenoids.The electrical system to power the solenoids is a low voltage - low amperage control circuit permitting the use of small diameter wires to be extended from a central power supply source for substantial distances therefrom and to each sprinkler. A capacitor in the circuit adjacent to latch valves builds up a charge sufficient for one of the solenoids to be energized to shift the latch valve to either open or close the sprinkler.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: January 25, 1977
    Inventors: Frank Hummel, Jr., Edmond B. King
  • Patent number: 4003365
    Abstract: A structure for collecting solar energy and storing the same as heat in a body of water. An inclined southerly wall is provided with a solar absorption surface protected from convection losses by a transparent membrane overlaying the absorption surface. The absorption surface is also formed as a membrane which is wetted at its underside within the structure by water spray and as solar radiation is absorbed and converted to heat at the membrane, the water at the underside of the membrane is heated. This heated water drops from the membrane and flows to a reservoir.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: January 18, 1977
    Assignee: Solar Energy Research Corporation
    Inventors: James B. Wiegand, John M. Freeman, Jr.
  • Patent number: 4002094
    Abstract: A metal saw is mounted upon a tippable arm above a table and is lowered to cut a work piece on the table. The saw and the tippable frame supporting it are mounted upon a vertically axised swing arm which has its vertical axis extending upwardly through the table in the plane of the saw blade and adjacent to the saw shaft. The tippable arm and the swing arm are laterally offset from the plane of the blade to permit the blade to be swung from a normal crosscut position perpendicular to a longitudinal edge of the table to selected angular positions and to a ripping position parallel to the edge of the table. The portion of the table immediately below the saw blade is formed as a disc which includes a slot wherein the edge of the saw may drop and which is axised to the swing arm to rotate with the swing arm and saw.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: January 11, 1977
    Assignee: Quick Rip Corporation
    Inventors: Harold L. Erickson, Wayne S. Weaver
  • Patent number: 3959527
    Abstract: Costume jewelry is manufactured through photofabrication processes from flat metal sheets to form items such as earrings and small pendants. A standard photo-fabrication operation includes covering a metal sheet with a layer of photosensitive, chemically resistive material commonly referred to as a photoresist. Portions of the covered sheet are exposed to light to outline the earrings and pendants on the sheet. The sheet is then developed and the exosed metal surface portions are chemically etched to remove excess metal and form the earrings and pendants. Thereafter, surface treatments involve supplementary photofabrication operations to provide different colors and finishes on the earrings and pendants by etching, plating and staining the exposed metal surfaces, all of which are supplemented by the retention of portons of photoresist layers of selected colors.
    Type: Grant
    Filed: April 8, 1974
    Date of Patent: May 25, 1976
    Inventor: Lee John Droege