Abstract: A fastening device system for connection at least a first and a second overlapping mats placed on the ground wherein the first mat is aligned over at least one connecting hole of the second mat, the fastening device system comprising, a housing having a first half and a second half wherein the first half and second half are attached together forming the housing. A pin having a foot disposed at the lower end thereof and a shaft having a helical shelf that engages the helical channel of the housing. The pin is configured so that when it rotates 90° in one direction to the housing the pin draws the foot closer to bottom of housing and provides at least one locking position of the foot and locking the foot in place.

Abstract: An drawstring clamping device having a first member and a second member. The first member has a first member base, a first tower structure secured to the first member base at a first tower structure first end, and a second tower structure secured to the first member base at a second tower structure first end. The second member has a second member base with an aperture disposed therethrough. The aperture is configured to adjustably engage the first tower structure and the second tower structure.

Abstract: An drawstring clamping device having a first member and a second member. The first member has a first member base, a first tower structure secured to the first member base at a first tower structure first end, and a second tower structure secured to the first member base at a second tower structure first end. The second member has a second member base with an aperture disposed therethrough. The aperture is configured to adjustably engage the first tower structure and the second tower structure.

Abstract: The present invention provides an aqueous emulsion shear stable coating vehicle comprising a polyalkylene glycol modified alkyd resin. The alkyd resin may be modified by incorporating polyoxyalkylene glycol segments into the backbone of the alkyd resin. In one embodiment the alkyd resin is derived from the reaction of at least one natural oil and an acid and/or acid anhydride and polyhydric alcohol. The resulting shear stable coating vehicle can be combined with a pigment under high shear conditions to provide a paint composition.

Abstract: A fluid level monitoring system 20 includes an ultrasonic interrogation device 30 acoustically coupled to a sidewall 25 of container 22 and produces ultrasound that travels through the liquid 24 along a transverse path 32 and an inclined path 34. The liquid level is determined by calculating the times-of-flight for the received return signals, where the return signal along the inclined path 34 reflects from the intersection 27 of the liquid level 28 and a sidewall 23. The device 30 can be a multi-element transducer having a plurality of transducer elements at different angular orientations in a common housing.