Patents by Inventor Jeffrey E. Sandahl

Jeffrey E. Sandahl 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: 7682098
    Abstract: A liquid applicator having a collapsible liquid reservoir with an elongated outer chamber wall having a characteristic length, and a liquid delivery piston having a length substantially equal to the characteristic length, wherein the piston is telescopically received in the outer chamber wall, and an elongated intermediate chamber wall having a length substantially equal to the characteristic length and wherein the intermediate chamber wall is telescopically received in the outer chamber wall located circumferentially intermediate the piston and the outer chamber wall, wherein the liquid reservoir and piston may be telescopically expanded to either a fully expanded condition wherein the combined length of the liquid reservoir and piston is about three times the characteristic length or a partially expanded intermediate condition wherein the combined length of the liquid reservoir and piston is substantially less than half the length of the liquid reservoir and piston in the fully expanded condition.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: March 23, 2010
    Assignee: Wagner Spray Tech Corporation
    Inventors: Jeffrey E. Sandahl, Shawn C. Johnson, Tim Wessels
  • Publication number: 20080193196
    Abstract: A liquid applicator having a collapsible liquid reservoir with an elongated outer chamber wall having a characteristic length, and a liquid delivery piston having a length substantially equal to the characteristic length, wherein the piston is telescopically received in the outer chamber wall, and an elongated intermediate chamber wall having a length substantially equal to the characteristic length and wherein the intermediate chamber wall is telescopically received in the outer chamber wall located circumferentially intermediate the piston and the outer chamber wall, wherein the liquid reservoir and piston may be telescopically expanded to either a fully expanded condition wherein the combined length of the liquid reservoir and piston is about three times the characteristic length or a partially expanded intermediate condition wherein the combined length of the liquid reservoir and piston is substantially less than half the length of the liquid reservoir and piston in the fully expanded condition.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 14, 2008
    Applicant: WAGNER SPRAY TECH CORPORATION
    Inventors: Jeffrey E. Sandahl, Shawn C. Johnson, Tim Wessels
  • Patent number: 5878508
    Abstract: A modular food dehydrator utilizing a heater blower assembly located on a top surface of a dehydrator module. The heater blower assembly includes a motor driven fan, a heating element and an air distribution portion for directing heated air across the support surfaces. The heater blower assembly is preferably releasably attachable to the dehydrator module. In a first embodiment, the dehydrator module has a central opening extending generally vertically through the support surfaces in fluid communication with the heater blower assembly for directing heated air radially outward across the plurality of support surfaces. The dehydrator module preferably includes outlet vents on an outer perimeter surface for exhausting the heated air. At least one outlet vent is preferably located between each of the plurality of support surfaces.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: March 9, 1999
    Assignee: American Harvest, Inc.
    Inventors: John L. Knoll, Troy M. Iverson, Jeffrey E. Sandahl, Bryce M. Lemon, Joaquim da Rosa, Chad S. Erickson, David A. Dornbush, Richard P. Riedel
  • Patent number: 5839356
    Abstract: A front-loading bread making machines for making two loaves of bread simultaneously. The bread maker utilizes bread pans with a pseudo-overrise which emulate the shape of conventional bread and facilitates handling of the bread pans. The bread pans have a high pan surface area to opening ratio which decreases rise and bake time.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: November 24, 1998
    Assignee: American Harvest, Inc.
    Inventors: David A. Dornbush, Neal P. Barnes, Michael A. Fritz, Troy M. Iverson, Michael F. Meyer, Kevin B. Moore, Jeffrey E. Sandahl, Jeffrey S. Duncan
  • Patent number: 5466912
    Abstract: A convection oven includes a frame having a base member and two upright members which extend upwardly from the base member. A cooking chamber is removably supported by the frame and includes an upper enclosure member and a lower enclosure member. A housing attached to the upper enclosure member is configured so that cool air flows from a peripheral portion of an arm into a central portion of the housing and then is expelled from the arm over the upper surface of the upper enclosure member. A passive hinge connects the housing to the frame such that the housing and upper enclosure member may be both separated from the frame and lower enclosure member by lifting the housing vertically and pivoted relative to the frame and lower enclosure member. An extension ring selectively enlarges the size of the cooking chamber. A holster may hold the upper enclosure member and the housing when they are separated from the lower enclosure member.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: November 14, 1995
    Assignee: American Harvest, Inc.
    Inventors: David A. Dornbush, Chad S. Erickson, Troy M. Iverson, Jeffrey E. Sandahl, Kevin B. Moore, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke
  • Patent number: 5147265
    Abstract: A straight back side chair has a seat cushion and a back member, and includes a low resistance loading device that is operated through a system of cords and pulleys from handgrips. The pulleys are supported on arms that are mounted to the back of the chair and which can be selectively positioned for different types of exercise. The arms can be positioned laterally out from the sides of the chair for doing butterfly type exercise; pushed downwardly at an angle for curls; or positioned overhead above the back of the chair for permitting a person seated in the chair to do pull downs. When the chair is not in use as an excerciser, the arms are folded out of the way so it functions as a side chair and does not visually intrude on the usable space in a room or tend to give the room the look of a gymnasium. The force resistance device is very compact so that it takes little space beneath the seat, permitting a cushioned or padded seat to be used.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: September 15, 1992
    Assignee: NordicTrack, Inc.
    Inventors: Edward A. Pauls, Timothy S. Engel, Michael E. Heutmaker, Robert A. Iverson, Jeffrey E. Sandahl
  • Patent number: 5090694
    Abstract: A straight back side chair has a seat cushion and a back member, and includes a low resistance loading device that is operated through a system of cords and pulleys from handgrips. The pulleys are supported on arms that are mounted to the back of the chair and which can be selectively positioned for different types of exercise. The arms can be positioned laterally out from the sides of the chair for doing butterfly type exercise; pushed downwardly at an angle for curls; or positioned overhead above the back of the chair for permitting a person seated in the chair to do pull downs. When the chair is not in use as an exerciser, the arms are folded out of the way so it functions as a side chair and does not visually intrude on the usable space in a room or tend to give the room the look of a gymnasium. The force resistance device is very compact so that it takes litter space beneath the seat, permitting a cushioned or padded seat to be used.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: February 25, 1992
    Assignee: NordicTrack, Inc.
    Inventors: Edward A. Pauls, Timothy S. Engel, Michael E. Heutmaker, Robert A. Iverson, Jeffrey E. Sandahl
  • Patent number: D357383
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: April 18, 1995
    Assignee: American Harvest, Inc.
    Inventors: David A. Dornbush, Chad S. Erickson, Jeffrey E. Sandahl, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke, Kevin B. Moore
  • Patent number: D369274
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: April 30, 1996
    Assignee: American Harvest, Inc.
    Inventors: David A. Dornbush, Chad S. Erickson, Jeffrey E. Sandahl, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke, Kevin B. Moore