The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc. by improving the overall space efficiency as well as reducing the test cost; and can easily perform more diverse and accurate inhalation toxicity tests on nanoparticles by selectively allowing a plurality of particle exposure modules to be in communication with each other or to be formed as an independent space, according to a user's needs, thereby variably applying the space of the particle exposure module without changing the arrangement of the particle exposure module.

The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc. by improving the overall space efficiency as well as reducing the test cost; and can easily perform more diverse and accurate inhalation toxicity tests on nanoparticles by selectively allowing a plurality of particle exposure modules to be in communication with each other or to be formed as an independent space, according to a user's needs, thereby variably applying the space of the particle exposure module without changing the arrangement of the particle exposure module.

A stake to be inserted into the ground or other soft medium and used to moor a watercraft, tether an animal, support an umbrella or secure a tent includes a slide hammer having a central shaft, an enlarged tubular striking handle, and a spike hingedly mounted at a distal end of the shaft; whereby the spike can be folded against the shaft and stowed within the handle for safe handling. The spike can be spring-loadedly angularly locked in the deployed orientation.

A stake to be inserted into the ground or other soft medium and used to moor a watercraft, tether an animal, support an umbrella or secure a tent includes a slide hammer having a central shaft, an enlarged tubular striking handle, and a spike hingedly mounted at a distal end of the shaft; whereby the spike can be folded against the shaft and stowed within the handle for safe handling. The spike can be spring-loadedly angularly locked in the deployed orientation.

The present invention is a device and method for preventing cargo in the cargo area of a vehicle from shifting forward in an accident, the vehicle having a horizontally hinged rear door.

The present invention relates to a novel design for a lightweight, portable D shaped circular dog run that is adapted for quick and simple attachment to a plethora of different diameter vertical stanchions including but not limited to posts, trees, pillars, poles and the like. It has a simple configuration wherein its distal end is insert able within its proximal end to an adjustable depth and then pinned therein, so as to create a continuous ring with a central void that accepts a spherical end of a track sphere. The track sphere rotates around the D shaped run within its central void and having a linear member extending normally therefrom with a lead ring on its end that the leash of the pet can be affixed to.

The present invention relates to a novel design for a lightweight, portable D shaped circular dog run that is adapted for quick and simple attachment to a plethora of different diameter vertical stanchions including but not limited to posts, trees, pillars, poles and the like. It has a simple configuration wherein its distal end is insert able within its proximal end to an adjustable depth and then pinned therein, so as to create a continuous ring with a central void that accepts a spherical end of a track sphere. The track sphere rotates around the D shaped run within its central void and having a linear member extending normally therefrom with a lead ring on its end that the leash of the pet can be affixed to.

A releasable securing arrangement for securing a moveable object. A hook arrangement is attached to the moveable object. A releasable connection is attached to a fixed object. A strap extends between the hook arrangement and the releasable connection. The hook arrangement is attached to a first end section of the strap. The releasable connection is attached to a second end section of the strap. The releasable connection includes first and second interlocking parts, the first interlocking part being longitudinally spaced from the second interlocking part along the strap. A foldable strap area extends between the first interlocking part and the second interlocking part to enclose the fixed object, the first and second interlocking parts meeting and interlocking at one side of the fixed object. The interlocked first and second interlocking parts separate when force applied onto the releasable connection by the moveable object exceeds a predetermined force limit.

A releasable securing arrangement for securing a moveable object. A hook arrangement is attached to the moveable object. A releasable connection is attached to a fixed object. A strap extends between the hook arrangement and the releasable connection. The hook arrangement is attached to a first end section of the strap. The releasable connection is attached to a second end section of the strap. The releasable connection includes first and second interlocking parts, the first interlocking part being longitudinally spaced from the second interlocking part along the strap. A foldable strap area extends between the first interlocking part and the second interlocking part to enclose the fixed object, the first and second interlocking parts meeting and interlocking at one side of the fixed object. The interlocked first and second interlocking parts separate when force applied onto the releasable connection by the moveable object exceeds a predetermined force limit.

The present disclosure provides for a pet securing device. The pet securing device may comprise one or more anchors. The anchor may comprise at least one cable. The anchor may comprise at least one attachment mechanism. The anchor may comprise a housing. The anchor may comprise at least one spindle. The cable may interface with at least one locking mechanism. The pet securing device may comprise at least one handle. The pet securing device may comprise one or more weights. When the pet securing device comprises a handle, the handle may be used to adjust the amount of weight attached to the pet securing device. The weights may attach to the pet securing device via one or more connecting mechanisms. The pet securing device may comprise at least one storage compartment within the main body of the pet securing device. The pet securing device may comprise one or more modular attachments. The pet securing device may interface with at least one external device.