Patents Represented by Law Firm Criddle & Western
  • Patent number: 4212496
    Abstract: A detachable cushion for the seat of ski lift chairs. A long, flat bar inserted into a pocket at one end of a seat pad is adapted to hook over the front edge of a conventional ski lift seat when the cushion is placed on the seat and, a rod sewn into a flap on the other end of the pad acts as a connector for springs which are adapted to hook to structure on the underside of the seat to hold the cushion tight.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: July 15, 1980
    Inventor: Arthur J. Kirkham, Jr.
  • Patent number: 4211580
    Abstract: Method and apparatus are disclosed for cleaning endless strips of motion picture film, magnetic tape, magnetic film, or the like contained in a reel formed on a rotatable hub housed in a casing, wherein cleaning is accomplished without opening the casing or removing the reel of film or magnetic tape therefrom. Successive portions of the film or tape stored in the reel are withdrawn as a continuous strip from the center of the reel. The strip is then continuously fed through an access opening in said casing to form a loop outside of the casing, wherein the strip is subjected to a cleaning means. The strip from the loop is introduced back through said opening to guide means within said casing. The guide means directs the strip of film or tape past an operational opening in the casing which is separate and apart from the access opening. The strip is then continuously returned to the reel.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: July 8, 1980
    Inventor: Jaren P. Vowles
  • Patent number: 4211084
    Abstract: Various low grade forms of energy, particularly superadiabatic ground level air, are used to power a whirlwind. The whirlwind is tethered in a fixed place by confinement of the formative whirl from which the whirlwind arises, permitting the energy contained therein to be harnessed into useful forms of energy.
    Type: Grant
    Filed: August 25, 1978
    Date of Patent: July 8, 1980
    Inventor: Volney Wallace
  • Patent number: 4208228
    Abstract: An improved method is disclosed for manufacturing composite panels of sandwich-types, with each composite panel including an outer layer formed from a mixture of solid particles and a resinous binder and a structural inner layer or core element which penetrates and is bonded to the outer resinous layer. The improved method achieves more accurate and consistent spacing of the outer layer relative to the inner core element by providing means for accurately and consistently controlling the degree of penetration of the outer layer by the inner core element. This is done by spreading a first layer of the mixture of solid particles and liquid resinous binder on a mold base. A sheet of material which is permeable to the mixture of particles and resinous binder is applied to the surface of the first layer, and the resinous binder in the first layer is allowed to gel.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: June 17, 1980
    Inventor: Lennart Johansson
  • Patent number: 4202363
    Abstract: A collapsible shelter of the umbrella-tent type including a foldable frame and a cover of sheet material affixed to the frame. The frame comprises a plurality of support members having mutually respective ends pivotally connected to a central hub. The central hub is mounted on elongate erecting guide means located at the apex of the frame. A second hub is mounted on the guide means below the central hub, and a plurality of rib members are pivotally connected at mutually respective ends to the second hub, with the other ends of the rib members being pivotally connected to corresponding, respective support members, so that when the shelter is in its erected form, the support members extend outwardly and downwardly from the central hub, the second hub is positioned adjacent or proximate to the central hub, the rib members extend substantially radially outwardly from the erecting guide, and the cover is held tautly affixed to the frame.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: May 13, 1980
    Assignee: American Ecosystems, Inc.
    Inventors: Paul J. Watts, Lynn D. Crawford, Philip T. Nichols
  • Patent number: 4201002
    Abstract: An extremely dependable, rugged display apparatus is provided for continuously displaying a portion of an endless tape, web, or belt containing visual messages or markings thereon. The endless tape, web, or belt moves from a storage space at the back of the apparatus, where excess slack in the tape, web, or belt is stored in loose folds, to and beneath a floating idler roller at the bottom of the apparatus. The tape, web, or belt then moves between a flat plate and a transparent sheet at the front of the apparatus to a drive roller at the top of the apparatus. The transparent sheet forms at least a portion of the front panel of the apparatus, and the flat plate is positioned flatwise directly behind and spaced from the transparent sheet. The tape, web, or belt passes between the drive roller and a free rolling, nip roller which is supported by the drive roller, and, then, back to the storage space.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: May 6, 1980
    Inventor: Edson K. Barton
  • Patent number: 4201793
    Abstract: Deep fried foods such as potato chips, french fries, pork rinds, corn chips, and the like are cooked in oils containing a metal proteinate or a mixture of metal proteinates. The life of the oil is extended and rancidity is inhibited.
    Type: Grant
    Filed: November 19, 1976
    Date of Patent: May 6, 1980
    Inventor: Harvey H. Ashmead
  • Patent number: 4201524
    Abstract: A submersible pump system is disclosed which uses a submersible internal combustion engine as the drive means for the pump. The system is ideally suited for use in installations employing conventional submersible pumps driven with electrical motors as an auxiliary or standby system which is designed to be employed during periods when the conventional pumps are inoperable, such as during an electrical power failure. In addition, the system is useful for pumping applications wherein electrical power is not available. The system of this invention comprises a water-tight submersible enclosure having an internal combustion engine mounted therein. A submersible, centrifugal pump is mounted on the exterior of the enclosure, with the drive shaft of the pump extending into the enclosure through a water-tight seal therein and being connected to the output drive of the engine.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: May 6, 1980
    Inventor: Richard S. Wilkins
  • Patent number: 4201237
    Abstract: A collapsible shelter of the umbrella-tent type including a foldable frame and a cover of sheet material affixed to the frame. The tent frame comprises a plurality of support members and novel means of pivotally connecting the mutually respective ends of the support members to a central hub. The central hub is mounted on erecting guide means, which preferably has the form of an erecting rod or cord. A second hub is mounted on the guide means below the central hub, and a plurality of rib members are pivotally connected at mutually respective ends to the second hub, using novel connecting means similar to that used with the support members.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: May 6, 1980
    Inventors: Paul J. Watts, Lynn D. Crawford, Philip T. Nichols
  • Patent number: 4195651
    Abstract: A collapsible shelter of the umbrella-tent type including a foldable frame and a cover of sheet material affixed to the frame, wherein the frame is provided with ground-engaging foot members which firmly secure the bottom and/or floor of the tent to the base of the frame. The tent frame comprises a plurality of support members which, when the shelter is erected, extend outwardly and downwardly from the hub to the ground. The novel foot members comprise a central body attached to the downwardly extending end of the respective support members. An elongate base is connected integrally with the central body portion of the foot member, and an elongate opening is provided in the base for attachment of one end of a strip of webbing or fabric which is attached at its other end to the bottom and/or floor of the tent cover. Means are also provided for attaching and anchoring a tie-rope or cord to the foot member.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: April 1, 1980
    Assignee: American Ecosystems, Inc.
    Inventors: Paul J. Watts, Lynn D. Crawford, Philip T. Nichols
  • Patent number: 4196068
    Abstract: Apparatus for producing chlorine gas comprising a plurality of separately housed electrolytic cells containing bimetallic electrodes electrically connected in series. Each electrolytic cell is divided into an anode and a cathode compartment separated by an ion permeable membrane which is impermeable to gases and water. Each cell housing contains passageways for simultaneously delivering a pure alkali metal chloride brine solution to the anode compartments and transporting chlorine gas produced at the anode and spent brine solution from the anode compartments. Passageways are also provided in each cell housing for delivering deionized water to the cathode compartments and conveying hydrogen gas produced at the cathode and an alkali metal hydroxide solution from the cathode chamber. Approporiate piping is provided for delivering brine solution and deionized water to the cell housing and conveying chlorine gas and spent brine and hydrogen gas and an alkali metal hydroxide solution from the cell housing.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: April 1, 1980
    Inventor: Frank J. Scoville
  • Patent number: 4193413
    Abstract: Means for slidably attaching a piece of fabric material to a tubular support member is disclosed, comprising a ring member which circumscribes the support member and is adapted for sliding movement therealong. The ring member has a key-type extension thereon which is adapted to releasably engage a corresponding locking connector which is attached to the fabric material. The attaching means are advantageously used in connecting the fabric portion of a collapsible shelter of the umbrella-tent type to the collapsible frame of the shelter.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: March 18, 1980
    Assignee: American Ecosystems, Inc.
    Inventors: Paul J. Watts, Lynn D. Crawford, Philip T. Nichols
  • Patent number: 4193606
    Abstract: There is disclosed a U-cup type machinery seal for circumferential placement about a rotating and/or reciprocating member. The seal comprises a boot having a generally V-shaped groove therein and an expander of generally triangular cross-section in the groove for biasing radially positioned lips into sealing engagement with the machinery to be sealed.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: March 18, 1980
    Inventor: Dennis H. Iverson
  • Patent number: 4192303
    Abstract: A flow regulating device provides continuous, regulated flow of a medical fluid, as well as intermittent, manually controlled larger flows of fluid to a catheter system. Such apparatus includes a control member having an inlet means adapted to be connected by tubing to a source of medical fluid and an outlet means adapted to be connected by tubing to a catheter. A flexible conduit defines at least a portion of a first passage between the inlet means and outlet means of the control member. Positioned in the flexible conduit is valve means adapted to open when the conduit is squeezed, thereby providing the larger, intermittent, manually controlled flow of fluid to the catheter system, and to automatically close when the conduit is released. A second passage in the control member connects the inlet and outlet means, and in combination with flow restriction means therein, provides the continuous, regulated flow of fluid to the catheter system.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: March 11, 1980
    Inventors: James E. Young, Ralph S. Walker
  • Patent number: 4189360
    Abstract: This invention relates to a process for mass-production formation of aluminum oxide coatings on a plurality of aluminum or aluminum alloy articles by means of continuous anodic oxidation. The process is characterized by connecting one or more of the aluminum articles to the positive terminal of a power supply capable of maintaining constant current. Depending on the volume of work to be anodized, two or more power supplies are utilized with the negative terminals connected to common cathodes of a common anodizing tank and the positive terminals being electrically isolated from each other. Individual racks containing one or more aluminum articles are brought into contact with the positive terminals of the power supplies. Contact is made through a series of segmented bus bars of positive electrical potential corresponding to the number of power supplies and a system is used to move the racks through the common anodizing tank. Thus, continuous anodizing of one or a plurality of articles is accomplished.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: February 19, 1980
    Inventors: Jack L. Woods, Craig P. Woods