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DVIT ONBOARD. Trademark – Registration Number – Serial Number :: Justia Trademarks

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DVIT ONBOARD. Trademark of SMART Technologies ULC Serial Number: :: Trademarkia Trademarks

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The exothermic concept potentially afforded a dangerous situation during the installation process and was difficult to install during certain weather conditions. Registration Forgot your password? To be installed properly, are must be taken so as not to cause major distortion of the ground rod end in driving. Lightning arrester systems to protect structures extending well above ground level must be grounded. We can often make variations of these products without significant addition cost. Variations to the original ground rod driver. We can design products to meet your needs.

The ground rod can then be driven to the desired depth and a suitable clamp attached to the rod. As an ISO registered and certified company, DeMark has a long history of providing demaro and innovation at a competitive price. Further, actual field tests have shown that DeMARK requires less time to install than other forms of coupling.

For custom applications, we offer quick lead times as all of our products are built at one location. Auth with social network: Normally, grounding for a pole line consists of only a single rod or perhaps two rods in parallel.

Copperhead connector patented for connecting ground wire to ground rods fast and easily. Tapered splines in coupler bore ensure good connection when rods are driven, permitting joining shorter sections for economy, safety A major consideration in designing the new coupler was safety.

Our mission is to provide products that fit a customer’s specific vemark in an economical manner. The present invention in the storage mode is then placed over the non-pointed end of the 8 foot grounding rod as shown in FIG. We think you have liked this presentation.

Over the next few years, DeMark Inc. The key for Demark is to supply the correct Drive Bit is to have proper information from the user.

Resistance Welding Commonly used resistance welding processes: New coupler bround ground rod problems The need for such a coupler arises primarily because of the requirement for low grounding resistance at substations. DeMARK manufactures and designs all its own products. It is good for truck grounding as well as doing soil resistivity tests.

Demark-Contract Machining

To make this website work, we log user data and dmark it with processors. Coupled rods were driven at various locations and then pulled to test both pull-out strength and percent conductivity as compared to an equal length of uncoupled rod table. However, it proved impossible to obtain a uniform 5 mils of plating as required by Detroit Edison, and the bimetallic composition posed a problem with corrosion.

The threadless coupler has proven to be a better method of splicing ground rods than the traditional “threaded” couplers. The present invention is a double-headed hammer slidingly encompassing a ground rod driving shaft having a single anvil affixed groud which can be selectively engaged by either hammer.

DeMark can provide unique soloutions to the grounding industry. We have three driving tools that can handle the job. A biased locking pin 23 is inserted into openings 24a and 24b in the wall of cylinder 10 which are in position just above striking surface 22a of anvil 22 to hold cylinder 10 and shaft 15 in the storage mode shown in FIGS.

An improvement over these devices is disclosed in U.

Demark Inc.-Electrical

Byhowever, this connector had become unavailable. OK Remaining lectures Last lecture by Dr. These unique drivers allow an individual to drive an 8 foot ground rod while standing on the ground with the impact force contained inside the eemark.

There is no limit to the type of rod or wire that can be used. This site was designed with the. Because of the more stringent requirements in establishment of a station ground mat, substation ground rods must be driven deeper, requiring end-to-end coupling.

1115 Ottokee St. ● P.O. Box 416 ● Wauseon, OH Tel ● Fax WEB: ●

Specifically, they do not have the splines that provide additional surface contact, their taper is not as long, and they are not capable of meeting much variation in rod diameter causing demxrk possible fit problem.

A new coupler was obviously needed. They are available for all sizes and types geound ground rods and for all kinds of impact drivers, breakers, and other such ground rod driving equipment. This allows for easy installation of threadless ground rods without additional tools. Secured to the end of driving shaft 15 opposite the end encompassed by hammer 13 is a cylindrical anvil 22 having striking surfaces 22a and 22b respectively.