Patents Represented by Law Firm Rogers, Howell & Haferkamp
  • Patent number: 5598819
    Abstract: A four stroke engine cylinder head (16) has two inlet pipes (19 and 22) which contain alternate acting inlet valves (14 and 15). Fuel/air induction strokes through valve (14) alternate with air only induction strokes through valve (15) giving an eight stroke cycle under half load. When gate valve (23) is moved by a control to the dotted position, this seals the air only inlet and opens port (25) to give fuel/air induction strokes over half load and a four stroke cycle. Air only induction strokes or eight stroke cycles under half load may also be achieved by cutting out some fuel injectors or injection strokes as the load permits.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: February 4, 1997
    Inventor: Anthony E. Blackburn
  • Patent number: 5593093
    Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: January 14, 1997
    Assignee: Contico International, Inc.
    Inventors: Donald D. Foster, Philip L. Nelson
  • Patent number: 5527323
    Abstract: A surgical instrument facilitates tying of a knot in a length of suture material at a remote surgical location. The instrument is comprised of an inner rod having a length of suture wrapped over the rod in a particular pattern. A needle may be secured to a free end of the suture and the pattern of wrapping the suture on the rod enables loops of suture to move off the rod end and over the needle to form a knot in the suture. The inner rod is received in an interior bore of an outer rod for manually controlled reciprocating movement therein. The inner rod is manually retracted into the interior bore of the outer rod to cause the outer rod to move the loops of suture off the inner rod end and over the needle in forming a knot in the suture.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: June 18, 1996
    Assignee: General Surgical Innovations, Inc.
    Inventors: James E. Jervis, Kenneth H. Mollenauer, Karl Van Dyk, George D. Hermann, Roger A. de la Torre, James S. Scott
  • Patent number: 5526352
    Abstract: A multi-channel, multicasting switch for an ATM network utilizes a particular nonblocking condition of the Flip Network, which is exploited to realize a multi-channel switching architecture that supports an arbitrary number of channel groups. Using a single Flip Network recursively, the resulting architecture becomes efficient in the sense that the crosspoint complexity is O(N log.sub.2 N) for N inputs. The number of times the Flip Network is used recursively is a function of the number of channel groups only. The architecture is internally nonblocking and bufferless. Distinguishing features are the abilities to provide multicasting, super-rate switching (i.e., rates that exceed the capacity of a single channel are accommodated), multi-rate switching (i.e., bit pipes of different rates are supported simultaneously), multiple performance requirements (i.e., services with different performance requirements are treated accordingly), and fairness (i.e.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: June 11, 1996
    Assignee: Washington University
    Inventors: Paul S. Min, Hossein Saidi
  • Patent number: 5513800
    Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: May 7, 1996
    Assignee: Contico International, Inc.
    Inventors: Donald D. Foster, Philip L. Nelson
  • Patent number: 5513698
    Abstract: An orbital rod drive arrangement for an orbital tube whip rod heat exchanger includes a single drive plate driving a plurality of countercranks, each countercrank supporting a whip rod from its upper end within a tube as it is driven in an orbital manner. The countercrank provides for balancing the whip rods within the tubes by mounting them in an offset manner. Furthermore, the whip rod is suspended as well as driven at its upper end to thereby leave the lower ends of the tubes unobstructed for the free flow of process fluid out the bottom of the tube. The countercrank includes an upper peripheral lip for supporting a single drive plate and the countercrank may be supported by the tube sheet which mounts the uniformly spaced tubes in the heat exchanger vessel. Variations are disclosed for the countercrank including providing different numbers of holes in the countercrank for balancing the whip rod mass about the circumference of the countercrank.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: May 7, 1996
    Assignee: Paul Mueller Company
    Inventor: Joseph B. O'Hanlon
  • Patent number: 5509608
    Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: April 23, 1996
    Assignee: Contico International, Inc.
    Inventors: Donald D. Foster, Philip L. Nelson
  • Patent number: 5507437
    Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: April 16, 1996
    Assignee: Contico International, Inc.
    Inventors: Donald D. Foster, Philip L. Nelson
  • Patent number: 5499766
    Abstract: A nozzle assembly for a trigger sprayer having a cap rotatable relative to a housing to establish the spray character of the fluid discharged and a slot and cam follower connection between the trigger sprayer housing and the cap with the cam shaped to impart an "off" condition, a gradually increasing spray condition, a combination spray and stream condition of gradually reversed relative influence, and a stream only condition. The different flow conditions are established by the interrelationship between a spinner head section and the cap that is rotatable along a path controlled by the cam and cam follower.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: March 19, 1996
    Assignee: Contico International, Inc.
    Inventors: Donald D. Foster, Philip L. Nelson
  • Patent number: 5498446
    Abstract: A method and apparatus for reacting sodium vapor with gaseous chlorides in a flame to produce nanoscale particles of un-oxidized metals, composites and ceramics. The flame is operated under conditions which lead to condensation of a NaCl by-product onto the particles. The condensate encapsulates the particles and aids in controlling desired particle size and preventing undesirable agglomeration among the particles during synthesis. Following synthesis, oxidation of the particles is inhibited by the encapsulation and handling character of the products is greatly enhanced. Electron microscopy has revealed that synthesized products are composed of discrete nanoparticles in a NaCl matrix. The NaCl encapsulate has been effectively removed from the particles by both washing and known sublimation technique at 800.degree. C. under low pressure.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: March 12, 1996
    Assignee: Washington University
    Inventors: Richard L. Axelbaum, Douglas P. DuFaux
  • Patent number: 5497564
    Abstract: A shoe construction employs straps formed of plastic material whereby separate areas of the shoe straps have different characteristics of elasticity, flexibility and rigidity. The construction of the strap provides areas connected to the shoe with greater elasticity and flexibility characteristics and a lesser rigidity characteristic than a second area of the strap that has greater rigidity characteristics and is connected to closure members of the shoe.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: March 12, 1996
    Assignee: Converse Inc.
    Inventors: Bernie Allen, Joel Rusnak, Aaron Azevedo, Neal Kimball
  • Patent number: 5496241
    Abstract: An exercise machine of the present invention is transformable between a first mode for simulating an activity such as skiing or rowing involving reciprocating linear motion and a second mode for simulating a cycling activity. The exercise machine comprises a frame, a shaft operatively connected to the frame for rotation about a shaft axis, a flywheel secured to the shaft and rotatable therewith, and a runner. A drive roller is operatively connected to the frame and is engageable with the runner such that forward or rearward movement of the runner causes the drive roller to rotate. A one-way clutch operatively connects the drive roller to the shaft so that the drive roller when rotated in a first direction causes rotation of the flywheel, and is free wheeling when rotated in a second opposite direction. A pair of offset cranks are operatively connectable to the shaft and a pair of foot pedals are connected to the cranks.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: March 5, 1996
    Inventor: Tyrone D. Sellers
  • Patent number: 5493742
    Abstract: A ventilating air mattress includes a mattress cover having a down filled quilted upper portion overlying the upper surface of the mattress such that air escaping from the ventilating air mattress inflates the quilted portion. The differential air pressure drop across the upper and lower layers of the quilted portion of the mattress pad provides a pillowing or fluffing effect which increases the comfort for the user thereof. An air pump with remote control provides user adjustability of the firmness of the mattress. Alternate embodiments include a readily changeable mattress cover or sheet with quilting instead of the quilted mattress pad.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: February 27, 1996
    Assignee: Lake Medical Products, Inc.
    Inventor: Jeffrey D. Klearman
  • Patent number: 5491901
    Abstract: An apparatus is disclosed for use in positioning outlet, switching and like electrical boxes about either side of a standard construction support such as a stud or joist. The device enables a worker to position such a box at a predetermined distance outwardly from the support to correspond with the thickness of covering materials intended for attachment thereto. It also provides for the positioning of such boxes at an established distance from fixed structures such as walls or floors. The device comprises two essential components. Namely, a substantially rectangular first block-shaped component and a thinner, substantially square second wafer component which mounts in sliding, adjacent relation to the block component. In operation, a longitudinal slot measuring approximately 1/16" is formed between the first and second components of the device. This slot, which corresponds with the standard width of an electrical box sidewall, is designed to receive and firmly hold the sidewall of such boxes.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: February 20, 1996
    Inventor: Peter A. Parrino
  • Patent number: 5485942
    Abstract: A dispenser assembly for dispensing liquid from a container has a dispenser operable remotely from the container by way of a tube communicating the dispenser and the liquid within the container. The dispenser assembly has a hand-held dispenser and a tube connected to the dispenser for extension into the liquid within the container. The dispenser is operable to dispense liquid from the container by way of the tube. An adaptor is secured to the container with the tube operable for extending from the dispenser, through the adaptor, and into the container. With the dispenser disconnected from the adaptor and with the adaptor secured to the container, the dispenser may be operated remotely from the container to dispense the liquid from the container. The container has a crown formed in a top wall which projects adjacent to and beyond the dispenser when the dispenser is secured to the container top wall.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: January 23, 1996
    Assignee: Contico International, Inc.
    Inventor: Donald D. Foster
  • Patent number: 5487108
    Abstract: A programmable dialler for a cellular telephone instrument allows telephone calls to be made only to specific, preprogrammed telephone numbers by operation of one or a sequence of keys on the instrument. The telephone numbers are deep embedded in the telephone instrument and cannot be changed by the user. The preprogramming may either be carried out by the instrument manufacturer, or may be carried out by a licensed programmer with the aid of a dedicated programming interface.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: January 23, 1996
    Assignee: AGR Industries Limited
    Inventors: Richard S. Atkins, Tommy W. Gibson, Philip P. Ransome
  • Patent number: 5481826
    Abstract: An improved planter apparatus for holding soil and plants and the like comprising a container and a base releasably securable to the bottom of the container. The container and base are provided with press-fit locking means for connecting the base to the container. The base is convertible such that it functions as a tray in an upright configuration and as a pedestal when inverted. Downwardly depending capillary wells project from the bottom of the container into association with reservoirs disposed within the base in both of its convertible configurations. The dimension of the base is such that, when the base is attached to the container in its upright configuration, multiple planters can be nested. The nestability of the apparatus provides for convenient handling of multiple planters as well as commercial packaging and transportation cost benefits.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: January 9, 1996
    Assignee: Contico International, Inc.
    Inventors: Thomas Dickinson, Bradley D. Gale
  • Patent number: 5482162
    Abstract: The present invention pertains to a tool chest assembly comprised of a lower chest and an upper chest that are both molded from a plastic material. The lower chest is supported on castered wheels and the upper chest is supported on the lower chest, and both the lower and upper chests have storage drawers mounted in front openings of the chests and closure members that close over the front openings of the chests.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: January 9, 1996
    Assignee: Contico International, Inc.
    Inventor: Thomas Dickinson
  • Patent number: D368012
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: March 19, 1996
    Assignee: Contico International, Inc.
    Inventors: Thomas Dickinson, Bradley D. Gale
  • Patent number: D368234
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: March 26, 1996
    Assignee: Contico International, Inc.
    Inventors: Thomas Dickinson, Bradley D. Gale