Patents Assigned to Donmark Holdings Inc.
  • Patent number: 9759517
    Abstract: An apparatus for dispensing incendiary spheres comprising a hopper operable to store discrete unitary unprimed spheres; a feed mechanism cooperating with the hopper to extract unprimed spheres from the hopper; a rotary sphere delivery mechanism rotating in a first direction and having at least one pocket defined therein, the at least one pocket being adapted to capture a sphere, wherein the feed mechanism cooperates with the rotary sphere delivery mechanism to load an unprimed sphere into the at least one pocket; a rotary injector mechanism rotating in an opposing second direction and having at least one injector needle, wherein the rotary injector mechanism and the rotary sphere delivery mechanism are synchronized such that the at least one injector needle pierces an unprimed sphere within the at least one pocket as the at least one pocket and the at least one injector needle rotate past each other; a source of reactant in fluid communication with the at least one injector needle, wherein the rotary injector
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: September 12, 2017
    Assignee: DONMARK HOLDING INC.
    Inventors: Mark Toeckes, Robert Button, Earl Trautman
  • Publication number: 20170152103
    Abstract: An overfill indicator for a flexible collapsible liquid storage tank made of a liquid impervious fabric and having a floor and a top wall with a vent therein, the overfill indicator comprising a connector portion adapted to removably connecting to the vent of the tank, an indicator movably mounted to the connector portion, the indicator being moveable between a resting position and a visually noticeable alert position, a base portion located on the inside of the tank and on the floor thereof and aligned with the vent, and a linkage connecting the base to the indicator such that the indicator is moved from the resting position to the alert position as the top wall of the tank reaches a threshold distance from the floor as the tank is filled with liquid, wherein said threshold distance coincides with the tank having reached a desired liquid capacity.
    Type: Application
    Filed: November 28, 2016
    Publication date: June 1, 2017
    Applicant: DONMARK HOLDINGS INC.
    Inventors: George Bartz, Victor Yaremenko, Jennifer Chi, Paul Reichard
  • Patent number: 8776693
    Abstract: An apparatus and method for dispensing incendiary projectiles is provided. The apparatus includes an injector for injecting the projectiles with a reactant at a dispensing rate, and a controller operable to control the dispensing rate. The controller is operable to control solenoids of a dispenser gate and a shuttle motor, and to prevent jam conditions of the apparatus. The apparatus can detect and automatically correct jam conditions that do occur. The apparatus can count the number of incendiary projectiles dispensed during a current operation and during the lifetime of the apparatus. The apparatus is dimensioned to minimize the number of incendiary projectiles purged from the apparatus after an operator has indicated to stop dispensing.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: July 15, 2014
    Assignee: Donmark Holdings Inc.
    Inventors: Mark D. Toeckes, Earl D. Trautman, Edward S. Vanderploeg
  • Patent number: 8453753
    Abstract: Firefighting bucket (11) suspended from an aircraft by lines (15), has open top (12A) and a valve at base (13). The valve is attachable to the aircraft by remotely actuatable line (16) and independent movement of lines (15-16) may utilize the weight of the water to facilitate opening and closing of the valve. Dynamic sensing of a bucket attribute, e.g. weight, enables bucket (11) to be filled or discharged by a pre-determined volume by the pilot. Chemical fire retardant may be added by entraining it with water discharging from the valve.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: June 4, 2013
    Assignee: Donmark Holdings Inc.
    Inventors: Geoff Hall, Mark Robertson
  • Patent number: 8316750
    Abstract: An apparatus and method for launching incendiary projectiles is provided. The apparatus includes a support adapted to being mounted to a vehicle, a pneumatic launcher connected to the support and operable to launch a projectile that has been delivered to the launcher, a gas delivery system operable to deliver a volume of pressurized gas to the launcher for launching the projectile, a projectile delivery system operable to deliver projectiles to the launcher, an injector cooperating operable to receive projectiles from the projectile delivery system and to inject the projectiles with an amount of reactant suitable to produce a delayed exothermic reaction with the incendiary material to prime the projectile, and thereafter convey the primed projectile to the launcher; and a controller operable to operable to regulate the launching of the projectiles.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: November 27, 2012
    Assignee: Donmark Holdings Inc.
    Inventors: Mark Toeckes, Earl Trautman, Cyril T. Boys
  • Publication number: 20100282230
    Abstract: An apparatus and method for launching incendiary projectiles is provided. The apparatus includes a support adapted to being mounted to a vehicle, a pneumatic launcher connected to the support and operable to launch a projectile that has been delivered to the launcher, a gas delivery system operable to deliver a volume of pressurized gas to the launcher for launching the projectile, a projectile delivery system operable to deliver projectiles to the launcher, an injector cooperating operable to receive projectiles from the projectile delivery system and to inject the projectiles with an amount of reactant suitable to produce a delayed exothermic reaction with the incendiary material to prime the projectile, and thereafter convey the primed projectile to the launcher; and a controller operable to operable to regulate the launching of the projectiles.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Applicant: DONMARK HOLDINGS INC.
    Inventors: Mark Toeckes, Earl Trautman, Cyril T. Boys
  • Publication number: 20100101401
    Abstract: An apparatus and method for dispensing incendiary projectiles is provided. The apparatus includes an injector for injecting the projectiles with a reactant at a dispensing rate, and a controller operable to control the dispensing rate. The controller is operable to control solenoids of a dispenser gate and a shuttle motor, and to prevent jam conditions of the apparatus. The apparatus can detect and automatically correct jam conditions that do occur. The apparatus can count the number of incendiary projectiles dispensed during a current operation and during the lifetime of the apparatus. The apparatus is dimensioned to minimize the number of incendiary projectiles purged from the apparatus after an operator has indicated to stop dispensing.
    Type: Application
    Filed: February 27, 2008
    Publication date: April 29, 2010
    Applicant: DONMARK HOLDINGS INC.
    Inventors: Mark D. TOECKES, Earl D. TRAUTMAN, Edward S. VANDERPLOEG
  • Patent number: D682855
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 21, 2013
    Assignee: Donmark Holdings Inc.
    Inventor: Peter Iden