Patents by Inventor John A. Larson
John A. Larson 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).
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Patent number: 7634883Abstract: A transition joint comprising: 1) a generally W-shaped central portion including first, second, third, and fourth legs; 2) a first vertical flange extending upwardly form the first leg of the W-shaped central portion; 3) a second vertical flange extending downwardly from the fourth leg of the W-shaped central portion; 4) a first transition zone or land between the first and second legs and a second transition zone between the third and fourth legs; 5) a longitudinal drip edge extending downward from the first transition zone; 6) a T-shaped stucco anchor extending downward from the fourth leg intermediate the second transition zone and the second vertical flange; and 7) a floor line alignment guide extending longitudinally along the first vertical flange. The floor line alignment guide provides accurate positioning of the transition joint with respect to a building in order to create proper clearance for runoff of rainwater and condensation and prevent infiltration of rainwater into the floor line.Type: GrantFiled: June 27, 2006Date of Patent: December 22, 2009Assignee: Plastic Components, Inc.Inventors: John A. Larson, Herman Guevara
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Patent number: 7406805Abstract: A step bead comprising: A) an elongated base having opposed front and back top and bottom longitudinal edges; B) a first rear vertical flange extending upwardly from the top rear longitudinal edge; C) a second rear vertical flange extending downwardly from the bottom rear longitudinal edge; D) a first front vertical flange extending upward from the top front longitudinal edge, generally parallel to the first rear vertical flange and having a first end proximate the top front longitudinal edge and a distal end; E) a longitudinal horizontal flange having a first end proximate the distal end and a second end remote from the distal end and extending from the distal end generally parallel to the base and away from the first rear vertical flange; F) a second vertical flange extending upwardly and downwardly from the second end and having a first top vertical flange end; and G) a third horizontal flange extending inwardly from the top vertical flange end toward the first vertical rear flange but not to the distal enType: GrantFiled: October 28, 2005Date of Patent: August 5, 2008Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 7036284Abstract: An improved curtain wall casing bead for installation on buildings having stucco or similar curtain wall exteriors. The improved curtain wall casing bead incorporates a mesh attached to at least the base portion of the casing or starter bead, which mesh extends beyond the front edge of the base, and, when folded upward over the face of an inserted foam or curtain wall panel, provides additional area for the infiltration of over-applied stucco finishes or the like. Such additional infiltration, after drying of the over-applied layer provides a more adherent, higher quality and more durable attachment of the stucco finish to the casing bead and the overall wall structure is achieved.Type: GrantFiled: June 6, 2002Date of Patent: May 2, 2006Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6718699Abstract: An improved ventilation strip for providing a soffit vent on a building. The ventilation strip includes an elongated perforated panel having a substantially planar upper surface and flanges extending laterally there from. A lip is provided on the lower surface of the panel at each edge of the panel running longitudinally thereon. The flanges are of non-uniform cross section and include an upper and a lower surface. The flanges are thickest at the juncture with the panel and thinnest at their outer ends with the lower surface tapering upward from the juncture to the end. Apertures may be provided in the flanges. The ventilation strip is operated by cutting a channel in the soffit of a structure, aligning the strip with the channel, and driving fasteners through the flanges to secure the strip to the soffit. Stucco reinforcement mesh may be secured across the flanges and the soffit and stucco spread thereon to complete the installation.Type: GrantFiled: April 21, 2003Date of Patent: April 13, 2004Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6705052Abstract: A soffit vent comprising a base having opposing elongated edges, a pair of parallel flanges extending upwardly from the base intermediate the elongated edges and defining: 1) a vent zone in the base characterized by the presence of vent holes in the base; and 2) attachment flanges formed by portions of the base extending beyond the location of the parallel upwardly extending flanges, the attachment flanges including holes therein for the insertion of attachment devices. A method for installing the soffit vent of the present invention in an EIFS or DEFS structure comprising locating the soffit vent in the appropriate location between a pair of insulating members in the EIFS or DEFS structure, attaching the soffit vent to the structure by the insertion of a suitable fastener through the apertures in the attachment flanges and into the foam insulation.Type: GrantFiled: April 18, 2002Date of Patent: March 16, 2004Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6698144Abstract: An improved curtain wall casing bead for installation on buildings having stucco or similar curtain wall exteriors. The improved curtain wall casing bead incorporates a mesh attached to at least the front wall of the casing or starter bead, which mesh extends beyond the height of the front wall and provides additional area for the infiltration of over-applied stucco finishes or the like. Such additional infiltration, after drying of the over-applied layer provides a more adherent, higher quality and more durable attachment of the stucco finish to the casing bead and the overall wall structure is achieved.Type: GrantFiled: April 18, 2002Date of Patent: March 2, 2004Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6540437Abstract: An end dam for a generally U-shaped moisture management channel comprising: a vertical wall having a front and a rear surface and a base edge; a first flange extending at a right angle from the rear surface in the area of the vertical wall base edge, integrally formed therewith, and having a distal edge and a base edge; and a second flange having a base edge extending from and integrally formed with the rear wall, spaced apart from the first flange and extending angularly away from the rear surface toward said first flange distal edge to define a slot between the first and second flanges. The first and second flanges of the end dam frictionally engage the base or bottom of a generally U-shaped moisture management channel causing the vertical wall to abut the sidewalls of such a device.Type: GrantFiled: April 12, 2001Date of Patent: April 1, 2003Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6470638Abstract: An improved moisture management system for installation over doors and windows in buildings that included exterior, stucco-covered, curtain walls comprising an integrally formed, three sided, elongated track including a base, an upright front wall that includes at its base weep holes for the removal of entrained moisture as well as a longitudinal forward extending finish stop above the weep holes, and an upright rear wall at opposing elongated edges of the base, and, extending angularly downward from the outside of the base, and integrally formed therewith, a drip plate that permits ready drainage of water exiting the moisture management system through the weep holes in the upright front wall. Preferably, elongated striations in the front faces of both the front and rear upright walls as well as holes in the upright front wall above the finish stop provide improved adherence of sealants and adhesives used in the installation process.Type: GrantFiled: August 24, 2000Date of Patent: October 29, 2002Assignee: Plastics Components, Inc.Inventor: John A. Larson
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Patent number: 6447872Abstract: A flexible and resilient plastic corner bead of the type used in the installation of gypsum, foam and other similar construction board comprising a pair of integral flanges joined by an integrally formed plastic hinge and having adhered to at least one surface thereof, a fiberglass mesh that extends beyond the lateral edges of the flanges of the corner bead.Type: GrantFiled: August 24, 2000Date of Patent: September 10, 2002Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6428611Abstract: A filter apparatus for use in removing mist, smoke and particles generated by a machine tool includes a mechanical first filtration stage and a second filtration stage consisting of an electrostatic precipitator. A blower device creates a stream of air for entraining and moving mist, smoke and other particles upwardly through the first and second filtration stages. Circuitry is provided selectively opening the circuit to the collector of the electrostatic precipitator. The collector is energized by a lower voltage from the ionizing field when current to the collector is interrupted. By energizing the collector of the electrostatic filter at a low voltage and by operating the blower unit at a low velocity, mist, smoke and other particles are efficiently collected without shorting the collector plates when water based metal working fluids are used.Type: GrantFiled: November 27, 2000Date of Patent: August 6, 2002Inventors: Anthony J. Andolino, John A. Larson
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Patent number: 6293064Abstract: A moisture management system for installation over doors and windows in buildings that included exterior, stucco-covered, curtain walls comprising an integrally formed, three sided, elongated track including a base having weep holes therein, an upright front wall and an upright rear wall at opposing elongated edges of the base, and, extending angularly downward from the outside of the base, and integrally formed therewith, a drip plate that permits ready drainage of water entering the moisture management system through the weep holes in the base. Elongated striations in the front faces of both the front and rear upright walls as well as holes in the front upright wall provide adherence of sealants and adhesives used in the installation process.Type: GrantFiled: August 17, 1999Date of Patent: September 25, 2001Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6212836Abstract: A corner bead comprising an arcuately profiled elongated central portion having two lateral edges and defining a concave and a convex surface, flanges extending from each of the lateral edges and unitarily formed therewith. The concave surface includes a pair of longitudinal rails extending at about 90° one from the other at the geometrical centerline of the concave surface and serve to align the corner bead of the present invention with the underlying drywall when applied over a drywall corner in the conventional fashion.Type: GrantFiled: May 19, 1999Date of Patent: April 10, 2001Assignee: Plastics Components, Inc.Inventor: John A. Larson
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Patent number: 6189273Abstract: A drywall reveal and retaining clip for assuring proper alignment of abutting drywall reveal sections. The retaining clip comprises a generally U-shaped channel that engages the rear of two abutting ends of similarly shaped drywall reveal and by engagement of longitudinal ribs on the retaining clip with mating longitudinal channels on the drywall reveal provides a joint that aligns the abutting drywall reveal ends and inhibits any relative movement therebetween.Type: GrantFiled: August 17, 1999Date of Patent: February 20, 2001Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6119416Abstract: There is described an improved flashing system for exterior doors and windows. The system comprises a header, right and left hand vertical drainage channels and right and left hand corner sections which join the header to the vertical channels on either side of the door or window. The header is designed to provide normal protection for the top of the door or window from water infiltration and also provides at the rear thereof a dam and weep holes for removal of any rainwater which may infiltrate between the flashing and applied siding. The system design provides a continuous channel to conduct any infiltrating water from the header via the corner sections to the vertical channels wherefrom it drains downward and is harmlessly removed at the base of the window or door.Type: GrantFiled: January 30, 1999Date of Patent: September 19, 2000Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 6041560Abstract: A sill support for protecting the sill of a window or door in new or retrofit construction which minimizes the need for on-site fabrication and comprises left and right end dam sections that engage a center connecting member of variable length depending upon the width of the door or window opening being treated.Type: GrantFiled: September 18, 1998Date of Patent: March 28, 2000Assignee: Plastic Components, Inc.Inventors: John A. Larson, Thomas J. Gretz, John Ofcharsky
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Patent number: 6038821Abstract: A sill support for protecting the sill of a window or door in new or retrofit construction which minimizes the need for on-site fabrication and comprises left and right end dam sections that engage a center connecting member of variable length depending upon the width of the door or window opening being treated.Type: GrantFiled: October 30, 1998Date of Patent: March 21, 2000Assignee: Plastic Components, Inc.Inventors: John A. Larson, Thomas J. Gretz, John Ofcharsky
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Patent number: 5937600Abstract: A drip channel for use in the construction of exterior wall systems and an exterior wall system using the drip channel are provided. Attached to the wall of a structure is a first vertical panel having a top edge and a bottom edge. A base portion is attached to and extends from the bottom edge of the first vertical panel such that the base portion and the first vertical panel form an oblique angle with one another. The base portion has an outboard edge with a plurality of holes distributed therealong. A second vertical panel is attached to and extends upward from the outboard edge of the base portion.Type: GrantFiled: February 27, 1997Date of Patent: August 17, 1999Assignee: Plastic Components, Inc.Inventor: John A. Larson
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Patent number: 5845998Abstract: A ball bearing assembly includes a polymer outer bearing ring molded over and partially enclosing a metal annular outer raceway. The metal annular outer raceway may be economically formed from sheet metal or wire. The polymer outer bearing ring may be mounted within a metal housing to provide support and/or self-alignment capability.Type: GrantFiled: November 27, 1996Date of Patent: December 8, 1998Assignee: The Torrington CompanyInventors: John A. Larson, Maksimilijan Godec, Walter P. Waskiewicz
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Patent number: 5630671Abstract: An annular collar includes a first clamping surface to be positioned radially outwardly of a surface of a bearing inner ring. The annular collar is made of a thermoelastic material such that an increase in temperature decreases the circumference of the annular collar and causes the first clamping surface to clamp against the surface of the bearing inner ring. The thermoelastic material may be a shape memory alloy or a polymer.Type: GrantFiled: August 31, 1995Date of Patent: May 20, 1997Assignee: The Torrington CompanyInventor: John A. Larson
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Patent number: 5503042Abstract: An antifriction force transmission, especially useful in torque wrenches comprises a freely rotatable cylindrical roller, opposed interface reaction surfaces in cooperative relation with the roller, and the roller and the reaction surfaces cooperating for effecting relative separating movement of the reaction surfaces when at least one of the reaction surfaces is caused to move transversely relative to the other of the reaction surfaces.Type: GrantFiled: November 16, 1993Date of Patent: April 2, 1996Assignee: Precision Instruments, Inc.Inventors: John A. Larson, Talmage O. Green, John K. Larson