Patents Represented by Attorney, Agent or Law Firm Craig M. Korfanta
  • Patent number: 4881441
    Abstract: A blocking system 10 for a stringed musical instrument, such as an acoustical guitar which has a neck connected to a sound box 1 constructed from a top 2, back 4 and sides 3, uses a neck block 11 having a substantially isosceles triangular shape. Neck block 11 has equal length concave sides 12 and a convex base 13 and is attached to sound box 1 at the top 2, back 4, and sides 3. Tail block 15 is constructed having a substantially isosceles triangular shape with equal length concave sides 16 and convex base 17. Tail block 15 is of slightly smaller width than the height of side wall 3 and attached thereto so equal length sides 16 are symmetrically disposed about the longitudinal axis.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: November 21, 1989
    Inventor: John M. Larsen
  • Patent number: 4878779
    Abstract: A trim control 100 providing a weight distribution compensator to a riding power trowel 1. The trim control 100 has hollow cylindrical housing 101 rigidly attached to riding power trowel frame 3. Cylindrical housing 101 has traveler slot 102 disposed in its side parallel to the cylindrical housing's longitudinal axis. A cylindrical traveler block 110 is slidably inserted into cylindrical housing 101. Traveler block 110 has a threaded coaxial bore 111 disposed in a first end for receiving a threaded second end 105 of control bolt 103. A stop dog 112 is radially attached to cylindrical traveler block 110 through and extending radially outward from traveler slot 102. Thrust bearing 107 and shoulder bearing 108 are coaxially inserted and attached to a first end of hollow cylindrical housing 101. A radially disposed threaded through hole is provided in housing 101 and shoulder bearing 108 for receiving allen head set screw 109.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: November 7, 1989
    Inventor: Marvin E. Whiteman, Jr.
  • Patent number: 4877235
    Abstract: A currency sorter and storage device 10 which includes a lockable storage container 11 having a front plate 12 which further has a plurality of currency receiving slots 13 therein. A pair of rollers, one being drive roller 18 and the other idler roller 17, are disposed in parallel spaced relationship directly behind and on the interior side of currency receiving slots 13. An electric motor 19 provides a source of rotation for drive roller 18. A partitioned currency bin 14 having currency receiving chutes 15 therein, is disposed within lockable storage containing 11 such that currency receiving chutes 15 each lie directly below a particular currency receiving slot 13. A rotatable shaft 23 having one end extending through the side of lockable storage container 11 has a plurality of biasing dogs 22 radially attached. Biasing dogs 22 are disposed along rotatable shaft 23 to each engage a stack of currency 1 located in a particular currency receiving chute 15.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: October 31, 1989
    Assignee: Tidel Systems, Inc.
    Inventors: Larry A. Robinson, Richard R. Robinson
  • Patent number: 4877327
    Abstract: A horizontally oriented mortar mixing drum 11 fabricated of polyethylene material having an elemental cylindrical segment opening through which mortar materials to be mixed may be deposited into or poured from. A perimeter frame having base elemental frame member 15, diametric wall frame members 16 and polyethylene grate 20 is provided for enhancing resistance to torsional stress on drum 11. Wear resistant liner 12 and side panels 13 and 14 cover the interior surface of drum 11. Paddle shaft 18 is rotatably and axially supported within drum 11 and has paddle stubs 28 attached to and extending radially therefrom. Polyethylene mixing paddles 19 are sleeved onto paddle stubs 28 to complete improved mortar mixing drum assembly 10.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: October 31, 1989
    Inventor: Marvin E. Whiteman, Jr.
  • Patent number: 4875310
    Abstract: Eight and ten sided irregular polyhedron building structures which are particularly well suited to be manufactured on an automated continuous production and manufacturing line. Both building structures are manufactured from planar building panels each having a uniform width. The panels are further designed having face angles such that during manufacture a single top or bottom edge cut results in forming two edges, one on the preceding panel and one on the subsequent panel.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: October 24, 1989
    Inventor: Ernest P. Shaughnessy
  • Patent number: 4872112
    Abstract: A recipe calculator 10 having a keyboard 24, display 22, and microcontroller 23 which includes microprocessor 25, ROM 26, RAM 27 and display driver 28, provides an apparatus for calculating food ingredient ratios and carrying out measuring unit conversions when a recipe serving size alteration is desired. Recipe calculator 10 is configured to faciliate single stroke calculations wherein its use is self-evident and requires no special training. Keyboard 24 provides a ten-key numeric keypad 11, a six-key fractional keypad 12, a five-key units keypad 13 and eight function keys 14 through 21.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: October 3, 1989
    Inventor: Roger D. Hungerford
  • Patent number: 4869449
    Abstract: A lockable gun safety drawer 10 having a gun drawer 11 slidably engaged with a recessed drawer housing 12 which can be attached to the underside of bed 1. Recessed housing 12 has top plate 19 having a bedside bracket 20 extending upwardly from its front edge. Bedside bracket 12 is configured to be received between an angle iron bed frame member 4 and a bottom edge of the bed's box springs. Top plate 19 is further provided with bracket 16 at its back edge for securing the same to the underside of the box springs 3 or a wooden bed slat 5. Recessed drawer housing 12 is constructed of top plate 19, side panels 20 and 21, back panel 23 and bottom panel 24. Holster post 15 is attached to and extends upwardly from bedside bracket 16 and is adapted to hold a holstered gun 6 in a ready position at bedside.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: September 26, 1989
    Inventor: Mark L. D. Goodman
  • Patent number: 4867105
    Abstract: A safety release apparatus 10 for use with a cattle stanchion apparatus 11 which includes a top cover plate 30 having side plates 27 depending perpendicularly therefrom and attached to top end of release stanchion 17 and further enclosing top rail 12 and stanchion actuator 20. Stop dog 24 and catch tang 25 are pivotally attached to side walls 27 via dog and tang bolt 26 and engage couplers 21 which are radially attached to stanchion actuator 20. Stop dog 24 has a pair of grab walls 32 depending perpendicularly therefrom to facilitate the disengaging of stop dog 24 with coupler 21 by the cattle stanchion operator. Cover plate 30 in connection with side plates 27 present a safe grab hold for the hand of the stanchion operator while disengaging stop dog 24, or catch tang 25, with coupler 21.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: September 19, 1989
    Inventor: John Hatfield
  • Patent number: 4867307
    Abstract: A ski and pole case 10 constructed from a pair of hemicylindrical forms 11 and 12. The hemicylindrical forms 11 and 12 are manufactured of a closed cell water resistant cushioned foam. Each of the hemicylindrical forms 11 and 12 has a cutout 13 and 14 in its planar face. One having a cut 13 contoured to closely follow the outline of a pair of skis in base to base configuration, while the other cutout 14 is closely contoured to accept a pair of ski poles. Wrapping staps 15 are circumferentially attached to the arcuate surfaces and have an adjustable fastening means at one end. The wrapping straps 15 are attached so that when they are engaged they align the two hemicylindrical forms 11 and 12 to form a single cylinder. Strap handles 19 can also be provided and are generally disposed along a cylindrical element parallel to the longitudinal axis of the cylinder and further centralized approximately aft the cylinder's center of gravity.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: September 19, 1989
    Inventor: Dana F. Bovee
  • Patent number: 4866762
    Abstract: An apparatus for restricting outgoing telephone calls 10 includes field effect transistors 501, 502, 503, 504 and 505 connected to telephone lines 11 and 12 in a nonpolar configuration. Signal conditioners dual tone multifrequency integrated circuit decoder 301 and operational amplifier 302 are connected to the MPTs. The outputs of dual tone multifrequency integrated circuit decoder 301 and off amp 302 are directed to microprocessor and piggyback ROM combination 101. Microprocessor and piggyback ROM 101 analyze, store and compare subsequent dialed telephone numbers to restrict particular outgoing calls. Microprocessor and piggyback ROM combination 101 is configured to allow or disallow a particular telephone number based upon an area code, and/or the local office exchange code and/or the particular four-digit customer number.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: September 12, 1989
    Inventor: Robert R. Pintar
  • Patent number: 4850723
    Abstract: A bearing and seal assembly 10 for a mortar mixer having attached to mortar mixer frame 36 a stationary cylindrical housing 14 for rotatably receiving and supporting a hollow cylindrical drum support shaft 11 attached to mortar drum end wall 18. The stationary frame 14 and drum support shaft 11 defining cylindrical cavity 48 between them into which lubricating grease can be injected through grease fitting 25 in stationary housing 14. The drum support shaft 11 further having ball bearing assembly 49 contained therein for rotatably supporting paddle shaft 12 which is positioned coaxial with drum support shaft 11. The drum support shaft 11 further having a spring biased plurality of grease seals 30 sealing the cavity within drum support shaft 11 around paddle shaft 12 between ball bearing assembly 49 and grease seals 30. Hole 21 is provided in drum support shaft 11 for injection of grease from cylindrical cavity 48 between drum support shaft 11 and stationary housing 14 into the drum support shaft cavity.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: July 25, 1989
    Inventor: Marvin E. Whiteman, Jr.
  • Patent number: 4850925
    Abstract: A deer call 10 having a pair of opposing convex half shells 11 and 12 attached one to the other and having a concave inner surface, together form a longitudinal air passage. A pair of venturi bars 16, one each transversely disposed on each half shell 11 and 12 form a venturi within the air passage. A doubled band reed 15 is disposed within the venturi, essentially parallel to both venturi bars 16. The doubled band reed 15 is constructed from a polyethylene plastic sheet being folded in half and heat sealed along the folded edge 18. The heat sealed edge 18 is located within the venturi on the upstream end, while the pair of unconnected edges 19 are located on the downstream end.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: July 25, 1989
    Assignee: Lohman Manufacturing Co., Inc.
    Inventor: Daniel D. Ady
  • Patent number: 4833901
    Abstract: A flexible ski locking apparatus 10 for locking a pair of skis 1 and ski poles 2 to a stationary object 3 is constructed from outer wrapping strap 11 joined to inner wrapping strap 12. Both outer and inner wrapping straps 11 and 12 have a fastening means 14 attached to each end for joining the ends of each strap together. Locking strap 13 is integrally attached to outer wrapping strap 11 and provides a mechanism for locking the outer wrapping strap around a pair of skis 1 and ski poles 2 in a wrapped position and further securing the outer wrapping strap to a stationary object 13. Pocket 15 is attached to outer wrapping strap 11 and provided to harbor locking strap 13 when in an unused state. A separate sealing means is provided on the upper edge of pocket 15 to seal the locking strap within pocket 15.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 30, 1989
    Inventors: Jeffrey D. Sage, Jerry D. Sage
  • Patent number: 4828179
    Abstract: A rotating spray nozzle assembly 10, for use with high pressure water, has a hollow distribution arm 12 radially attached to a hollow rotation shaft 14. Attached to distribution arm 12 are a plurality of spray nozzles 13. Pressurized water from water chamber 16 sequentially activates, via inlet rotor 21, bevelled and pistons 24 which in turn drive cylindrical wedge cam 31. Cylindrical wedge cam 31 circumscribes and is attached to hollow rotating shaft 14. The hollow rotating shaft 14 derives its rotation from the action of bevelled end pistons 24.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: May 9, 1989
    Inventor: Jim W. Garner
  • Patent number: 4827812
    Abstract: A pocket screwdriver 10 having a hollow shaft 11, one end of which is contoured to receive the hexagonal shaft 25 of a standard interchangeable screwdriver bit, 13 or 18, a thrust bearing magnet 17 for magnetically attaching to the standard hexagonal bit, a storage compartment 23 for storing one or more interchangeable hexagonal bits, a shirt pocket clip 15 attached to the hollow shaft 11 and a torque cap 12 which can be radially attached to the shaft thereby acting as torque amplification means.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: May 9, 1989
    Inventor: Donald J. Markovetz