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.).
Most modern homes have devices called water hammer arresters ( they're called various things such as air chamber, air cushion, water capacitor, etc.) . They are air filled chambers connected to the plumbing that let the pressure wave dissipate harmlessly into a cushion of air.