Patents by Inventor Darren Mark

Darren Mark 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: 11445790
    Abstract: A novel umbrella is disclosed with a simplified structure that creates a clean, elegant profile with reduced component count and increased wind resistance. The umbrella includes a support post, a housing supported thereby, spokes pivotally disposed about the housing, a canopy, and an actuator. The housing has a top hub and a bottom hub. The actuator slides the hubs together to pivot the spokes away from the housing, whereby the umbrella moves from a closed position to an open position. Rollers are preferably retained within the top hub, and each spoke preferably has a spoke cam attached to one end. The spokes pivot away from the housing by having a roller surface of each spoke cam slide along each respective roller. The actuator may have a crank operated worm drive mechanism to raise and lower the canopy.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: September 20, 2022
    Inventors: Richard Holbrook, Darren Mark
  • Publication number: 20210259376
    Abstract: A novel umbrella is disclosed with a simplified structure that creates a clean, elegant profile. The umbrella includes a support post having a hole, and a top housing and an opposing bottom housing supported by the post. The bottom housing has a bottom hub, a top cap disposed about the bottom hub, and an opposing bottom cap disposed about the bottom hub opposite the top cap. The bottom cap has a lever lock receptacle. Spokes are pivotally disposed about the top housing, and a canopy is disposed about the spokes. Struts are pivotally disposed about the bottom housing. A lever lock is retained by the lever lock receptacle, wherein the lever lock has a pin adapted to fit within the hole of the post for retaining the canopy in an open position.
    Type: Application
    Filed: November 30, 2020
    Publication date: August 26, 2021
    Inventors: Richard Holbrook, Darren Mark
  • Publication number: 20210259375
    Abstract: A novel umbrella is disclosed with a simplified structure that creates a clean, elegant profile with reduced component count and increased wind resistance. The umbrella includes a support post, a housing supported thereby, spokes pivotally disposed about the housing, a canopy, and an actuator. The housing has a top hub and a bottom hub. The actuator slides the hubs together to pivot the spokes away from the housing, whereby the umbrella moves from a closed position to an open position. Rollers are preferably retained within the top hub, and each spoke preferably has a spoke cam attached to one end. The spokes pivot away from the housing by having a roller surface of each spoke cam slide along each respective roller. The actuator may have a crank operated worm drive mechanism to raise and lower the canopy.
    Type: Application
    Filed: March 25, 2021
    Publication date: August 26, 2021
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: 10959500
    Abstract: A novel umbrella includes a support post, a housing supported thereby, spokes pivotally disposed about the housing, a canopy, and an actuator. The housing has a top hub and a bottom hub. The actuator slides the hubs together to pivot the spokes away from the housing, whereby the umbrella moves from a closed position to an open position. Rollers are retained within the top hub, and each spoke has a spoke cam attached to one end. The spokes pivot away from the housing by having a roller surface of each spoke cam slide along each respective roller. The actuator may include a beam pivotally disposed about the support post, a strut pivotally disposed about the support post and coupled to the beam, a car slide slideably disposed within the beam, and a cable coupled to the strut and the housing.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: March 30, 2021
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: 10881176
    Abstract: A novel umbrella is disclosed with a simplified structure that creates a clean, elegant profile. The umbrella includes a support post, a top housing supported by the post, and a bottom housing supported by the post. Spokes are pivotally disposed about the top housing. Struts are pivotally disposed about the bottom housing, wherein each strut is pivotally connected to a respective spoke. A canopy is disposed about the plurality of spokes. A first and second set of rollers may be retained with the top housing. A third set of rollers may be retained within the bottom housing. A rope raises and lowers the canopy. A lever lock is disposed about the bottom housing to retain the rope when the umbrella is in an open position. The umbrella also has a rope storage slot within the support post for retaining any excess rope.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: January 5, 2021
    Inventors: Richard Holbrook, Darren Mark
  • Publication number: 20200297114
    Abstract: A novel sling assembly and corresponding method of stretching sling fabric are disclosed. The assembly preferably comprises a chassis with opposing rails connected by a cross bar. A sling frame having opposing stretch bars connected by a stretchable fabric is disposed over the chassis in a pre-assembled position. A cam lock is inserted into a key hole cut into at least one of the rails; the cam lock is then rotated away from the central axis of the key hole. An engagement member extending from at least one of the stretch bars is then inserted into the key hole. The sling fabric may now be stretched by rotating the cam lock toward the central axis of the key hole to move the engagement member along the key hole until the fabric is taut. The taut fabric is held in place by the engaged cam lock, whereby the assembly is kept in its stretched, fully assembled position. The invention's unique structure thus advantageously makes sling fabric replacement convenient, quick, and without the need for special tools.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 24, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: 10772429
    Abstract: A novel sling assembly and corresponding method of stretching sling fabric are disclosed. The assembly preferably comprises a chassis with opposing rails connected by a cross bar. A sling frame having opposing stretch bars connected by a stretchable fabric is disposed over the chassis in a pre-assembled position. A cam lock is inserted into a key hole cut into at least one of the rails; the cam lock is then rotated away from the central axis of the key hole. An engagement member extending from at least one of the stretch bars is then inserted into the key hole. The sling fabric may now be stretched by rotating the cam lock toward the central axis of the key hole to move the engagement member along the key hole until the fabric is taut. The taut fabric is held in place by the engaged cam lock, whereby the assembly is kept in its stretched, fully assembled position. The invention's unique structure thus advantageously makes sling fabric replacement convenient, quick, and without the need for special tools.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 15, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Publication number: 20080120945
    Abstract: A kit and method for assembling an item, such as assembly-required furniture, is provided. The kit includes a plurality of parts and a plurality of compartments for packaging the parts. The parts packaged in a first compartment are used in a first assembly step, and the parts packaged in a second compartment are used in a second assembly step. This kit and method may be used to simplify the process of assembling various types of items such as furniture, toys, games and decorations as well as other various assembly-required items.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 29, 2008
    Applicant: Staples, The Office Superstore LLC
    Inventors: Richard Holbrook, Darren Mark, Paul Schmucker
  • Patent number: 6726034
    Abstract: A modular furniture system having at least one rail that has a grooved surface, at least one clip adapted to cooperatively engage the grooved surface of the rail(s), a fastener for securing the clip(s) to the rail(s), and at least one fixture mounted over the clip(s) and onto the rail(s). The clip(s) have a first end and a second end opposite the first end, the first end having two arms facing each other separated by a channel. The arms are capable of being biased toward each other as the clip is inserted into the grooved surface and maintains the clip in the grooved surface after the clip is inserted. The fastener is dimensioned to pass into the channel to secure the clip(s) to the rail(s). Several fixtures can be used with the furniture system to provide a number of different configurations, including surface mounted furniture systems, mobile furniture systems, and furniture systems that are either integral parts of other pieces of furniture or stand alone systems.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: April 27, 2004
    Assignee: Teknion, LLC
    Inventors: Richard M. Holbrook, Filiberto Betancourt, Jeffrey Bentzler, Darren Mark
  • Publication number: 20030168951
    Abstract: A modular furniture system having at least one rail that has a grooved surface, at least one clip adapted to cooperatively engage the grooved surface of the rail(s), a fastener for securing the clip(s) to the rail(s), and at least one fixture mounted over the clip(s) and onto the rail(s). The clip(s) have a first end and a second end opposite the first end, the first end having two arms facing each other separated by a channel. The arms are capable of being biased toward each other as the clip is inserted into the grooved surface and maintains the clip in the grooved surface after the clip is inserted. The fastener is dimensioned to pass into the channel to secure the clip(s) to the rail(s). Several fixtures can be used with the furniture system to provide a number of different configurations, including surface mounted furniture systems, mobile furniture systems, and furniture systems that are either integral parts of other pieces of furniture or stand alone systems.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 11, 2003
    Inventors: Richard M. Holbrook, Filiberto Betancourt, Jeffrey Bentzler, Darren Mark
  • Patent number: D856729
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 20, 2019
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D899069
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 20, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D899070
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 20, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D899761
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 27, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D899762
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 27, 2020
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D909042
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: February 2, 2021
    Inventors: Richard Holbrook, Darren Mark
  • Patent number: D928305
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: August 17, 2021
    Inventors: Richard Holbrook, Darren Mark