Patents by Inventor David A. Kirby

David A. Kirby 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).

  • Publication number: 20050224555
    Abstract: A stapler including a staple support device. The stapler includes a base, a magazine for holding staples having a front portion, and a staple driver for driving staples out of the magazine in a staple driving plane. The stapler also includes a nose piece coupled to the front portion of the magazine and a support device coupled to the nose piece. Staples in the magazine are supported on an outer surface by the magazine and on an inner surface by the support device.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 13, 2005
    Applicant: ACCO Brands, Inc.
    Inventors: David Kirby, Bikramjeet Sohi, Stephen Gaynes, Richard Page
  • Publication number: 20050161174
    Abstract: A roller shade assembly includes a drape bar extending adjacent a rotatably supported roller tube to suspend a portion of a flexible shade fabric windingly received by the roller tube. The drape bar includes a fabric-receiving portion that is shaped along at least a portion of its length to be non-linear so that the suspended portion of the shade fabric defines a curve across its width. The fabric-receiving portion of the drape bar may be continuously curved. Alternatively, the fabric-receiving portion may include substantially straight segments each longitudinally misaligned with adjacently located segments.
    Type: Application
    Filed: January 27, 2004
    Publication date: July 28, 2005
    Inventor: David Kirby
  • Patent number: 6902141
    Abstract: A roller shade mounting system includes a pair of assemblies for limiting sagging in a roller shade tube. The assembly includes a single bearing supported by a shaft to position the bearing at a distance from an end of the tube. Alternatively, the assembly includes a bearing pair supported by a shaft to define spaced support points for applying a reaction moment the roller tube. The assembly further includes an attachment member secured to the shaft at a first end and to the structure at an opposite second end, either directly, or to a mounting bracket secured to the structure. The mounting assembly may further include a deflection adjustment member engaging the attachment member and a fixed support member to provide variable control of roller tube deflection.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: June 7, 2005
    Assignee: Lutron Electronics Co., Ltd.
    Inventor: David A. Kirby
  • Publication number: 20050082452
    Abstract: A roller shade mounting system includes a pair of assemblies for limiting sagging in a roller shade tube. The assembly includes a single bearing supported by a shaft to position the bearing at a distance from an end of the tube. Alternatively, the assembly includes a bearing pair supported by a shaft to define spaced support points for applying a reaction moment the roller tube. The assembly further includes an attachment member secured to the shaft at a first end and to the structure at an opposite second end, either directly, or to a mounting bracket secured to the structure. The mounting assembly may further include a deflection adjustment member engaging the attachment member and a fixed support member to provide variable control of roller tube deflection.
    Type: Application
    Filed: December 7, 2004
    Publication date: April 21, 2005
    Applicant: Lutron Electronics Co., Inc.
    Inventor: David Kirby
  • Patent number: 6845806
    Abstract: A weighting assembly for a roller shade fabric includes an elongated hem bar having opposite open ends and defining an internal cavity communicating with the open ends. A spline secured to an end of the fabric is slidingly received in a pocket defined within the cavity through one of the ends. The pocket includes an opening communicating with the rest of the cavity for passage of the fabric to an exterior through an elongated slot in the hem bar. After the fabric is wrapped on an exterior surface of the hem bar, a portion of the fabric is fed into the cavity through the slot to form a loop for slidingly receiving an elongated rod through one of the ends. The rod has a diameter that is greater than a width of the slot to prevent removal of the rod through the slot.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: January 25, 2005
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Jason Scott Gottschall, Mark A. Walker, Joel Elwood Hibshman, David A. Kirby
  • Patent number: 6810420
    Abstract: A device is discovered on a network by means of a discovery protocol operated by a proxy and a protocol address for the device is obtained if required by the proxy, which requests a protocol address in accordance with a dynamic host communication protocol, then in the absence of response to that request attempts automatic private addressing and finally if necessary allows manual entry of a protocol address for the device.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: October 26, 2004
    Assignee: 3Com Corporation
    Inventors: Christopher J Buse, Andrew P White, David Kirby, Robert Allsworth, David E Bill
  • Patent number: 6796357
    Abstract: A shade system includes a plurality of panels that are supported by opposite first and second tracks for translation of the panels between retracted and extended positions. The shade system further includes an extension panel supported for translation with a terminal shade panel. An extension panel support assembly includes mount members translatably secured to the tracks and deployment members that position at least a portion of the extension panel beyond an end of the tracks when the shade system is in the extended position. A drive system engages the deployment members to translate the extension panel with respect to the tracks and to deploy the extension panel beyond the end of the tracks.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: September 28, 2004
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David A. Kirby
  • Patent number: 6796356
    Abstract: A folding shade system includes a shade having a plurality of panels secured in an end-to-end fashion and cables suspended from opposite tracks to define a first curved profile. The folding shade system further includes at least one receiver for each of the cables secured to the shade to define a cable-receiving pathway extending across the width of one of the panels. The pathway defined by the at least one receiver has a second curved profile substantially matching the first curved profile of the cable. The at least one receiver for each cable may be a continuous sleeve defined by lines of stitching in joined end portions of adjacent panels or, alternatively, may include separate receivers each secured to the shade by a connector.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: September 28, 2004
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David A. Kirby
  • Publication number: 20040129391
    Abstract: A weighting assembly for a roller shade fabric includes an elongated hem bar having opposite open ends and defining an internal cavity communicating with the open ends. A spline secured to an end of the fabric is slidingly received in a pocket defined within the cavity through one of the ends. The pocket includes an opening communicating with the rest of the cavity for passage of the fabric to an exterior through an elongated slot in the hem bar. After the fabric is wrapped on an exterior surface of the hem bar, a portion of the fabric is fed into the cavity through the slot to form a loop for slidingly receiving an elongated rod through one of the ends. The rod has a diameter that is greater than a width of the slot to prevent removal of the rod through the slot.
    Type: Application
    Filed: January 6, 2003
    Publication date: July 8, 2004
    Inventors: Jason Scott Gottschall, Mark A. Walker, Joel Elwood Hibshman, David A. Kirby
  • Publication number: 20040129850
    Abstract: A roller shade mounting system includes a pair of assemblies for limiting sagging in a roller shade tube. The assembly includes a single bearing supported by a shaft to position the bearing at a distance from an end of the tube. Alternatively, the assembly includes a bearing pair supported by a shaft to define spaced support points for applying a reaction moment the roller tube. The assembly further includes an attachment member secured to the shaft at a first end and to the structure at an opposite second end, either directly, or to a mounting bracket secured to the structure. The mounting assembly may further include a deflection adjustment member engaging the attachment member and a fixed support member to provide variable control of roller tube deflection.
    Type: Application
    Filed: January 6, 2003
    Publication date: July 8, 2004
    Inventor: David A. Kirby
  • Publication number: 20040060668
    Abstract: A shade system includes a plurality of panels that are supported by opposite first and second tracks for translation of the panels between retracted and extended positions. The shade system further includes an extension panel supported for translation with a terminal shade panel. An extension panel support assembly includes mount members translatably secured to the tracks and deployment members that position at least a portion of the extension panel beyond an end of the tracks when the shade system is in the extended position. A drive system engages the deployment members to translate the extension panel with respect to the tracks and to deploy the extension panel beyond the end of the tracks.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventor: David A. Kirby
  • Publication number: 20040060667
    Abstract: A folding shade system includes a shade having a plurality of panels secured in an end-to-end fashion and cables suspended from opposite tracks to define a first curved profile. The folding shade system further includes at least one receiver for each of the cables secured to the shade to define a cable-receiving pathway extending across the width of one of the panels. The pathway defined by the at least one receiver has a second curved profile substantially matching the first curved profile of the cable. The at least one receiver for each cable may be a continuous sleeve defined by lines of stitching in joined end portions of adjacent panels or, alternatively, may include separate receivers each secured to the shade by a connector.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventor: David A. Kirby
  • Patent number: 6665275
    Abstract: A network device which is for use in an Ethernet packet-based communication system has at least one port which is capable of auto-negotiation to select between half duplex and full duplex working on a link to which the port is connected. The device includes means for monitoring the existence of late collisions between packets on said link, means for monitoring the existence of packet fragments on the link, and monitoring means for detecting and correcting for a duplex mismatch on the link partner. This monitoring means is operative to determine whether there are any late collisions and in the absence of a detection of fragments to configure the port from a half duplex mode to a full duplex mode. The monitoring means is also operative to detect the presence of fragments when the port is in full duplex mode and thereby to provide an indication that a rule relating to network size is infringed.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: December 16, 2003
    Assignee: 3Com Corporation
    Inventors: Andrew M Davy, Andrew P White, David E Bill, David Kirby, Stephen N Crocombe
  • Patent number: 4816628
    Abstract: An air gap switch is operated by a non-conductive rotatable indexing cam switch which rotates relative to two electrical contacts resiliently disposed on opposite sides of the cam. A spider with depending conductive legs is mounted on the cam. Rotation of the cam alternatively connects and disconnects the electrical contacts wherein the connection, when made, is completed through the conductive spider located on the cam. The cam is operated, pushbutton style, by depressing a main shaft relative to the housing of the air switch. The main shaft engages projections on the index cam which step the cam through a plurality of index positions.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: March 28, 1989
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David Kirby
  • Patent number: 4639819
    Abstract: A protective bypass circuit for optionally shortcircuiting the output lugs of a plurality of circuit breakers. The bypass circuit includes a plurality of lug plates, each having first and second sections. The first section of each lug plate is received in and clamped by an output lug of a respective circuit breaker. A plurality of lead wire clamping elements are electrically coupled to the first section of a respective lug plate and are adapted to releasably clamp a lead wire thereto. A shorting bus bar is releasably coupled to the second sections of the lug plates.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: January 27, 1987
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David Kirby
  • Patent number: 4564801
    Abstract: A dimmer switch assembly consists of a conductive yoke which has two insulation housings connected thereto which carry respective subassemblies for the dimmer switch. A cavity in the first housing receives the main power semiconductor device of the dimmer switch. The power semiconductor device is thermally connected to the yoke through a thin electrically insulative tape and has an active, non-electrically isolated, heat sink. A biasing spring within the first housing presses the power semiconductor device toward mechanical engagement with the yoke. The first housing assembly is fastened to the yoke by conductive eyelets which are insulated from the power semiconductor by the first insulation housing.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: January 14, 1986
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David Kirby
  • Patent number: 4520306
    Abstract: A dimmer switch assembly consists of a conductive yoke which has two insulation housings connected thereto which carry respective subassemblies for the dimmer switch. The first insulation housing contains a rotatable push shaft. Shaft rotation rotates a resistor plate having a resistive pattern on its surface relative to fixed resistor contacts. A biasing spring biases the shaft to an outward position relative to the conductive yoke. A cavity in the first housing receives a main power semiconductor device of the dimmer switch. The power semiconductor device is thermally connected to the yoke through a thin electrically insulative tape and has an active, non-electrically isolated, heat sink. A biasing spring within the first housing presses the power semiconductor device toward mechanical engagement with the yoke. The first housing assembly is fastened to the yoke by conductive eyelets which are insulated from the power semiconductor by the first insulation housing.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: May 28, 1985
    Assignee: Lutron Electronics Co., Inc.
    Inventor: David Kirby