Stocks and bonds are examples of paper collateral. Another common form of paper collateral is chattel paper. Chattel paper is a writing that indicates that the holder is owed money and has a security interest in valuable goods associated with the debt.
Today, spark arresters can be found as OEM or aftermarket components on many types of equipment, such as large agricultural machines, off highway vehicles (OHVs), and small engines (chainsaws, string trimmers, leaf blowers, etc.).
Water hammer arrestors are preferred over air chambers, as arrestors do not require recharging as is in the case of air chambers. Any fluid running in pipes that is not water can cause hammering noises and damage to the pipe system.