Who May Be Responsible for Your Injury
Who might answer for an injury depends on who controlled the place and the equipment.
At a park or on someone's property, the people who controlled the space, the staff and the rules are the usual focus, under premises liability and negligent supervision. That is not limited to the titleholder: a landlord, tenant or other "person in control of the premises" can also be an owner under the Title 7 definition. If the trampoline or a part failed, the manufacturers, importers, distributors and sellers are the usual focus under product liability. More than one of these may be involved in the same accident.
A public trampoline program or a county or town facility raises different rules. Under section 4011 of Title 10 of the Delaware Code, "except as otherwise expressly provided by statute, all governmental entities and their employees shall be immune from suit on any and all tort claims." Section 4012 lists exceptions, including negligence in a governmental entity's "ownership, maintenance or use of any motor vehicle, special mobile equipment, trailer, aircraft or other machinery or equipment, whether mobile or stationary."
Where a claim is permitted, section 4013 sets two rules. Damages, including costs, against a political subdivision and its employees "shall not exceed $300,000 for any and all claims arising out of a single occurrence," except that if the subdivision buys liability insurance above $300,000, the limit is the amount of that coverage. And a political subdivision "may enact a notice requirement by ordinance, so long as said notice requirement does not bar suit if notice is given within 1 year of occurrence." This limit applies only to political subdivisions; it is not a cap on claims against a private park, homeowner or manufacturer.
One city has its own rule. Under section 8124 of Title 10 of the Delaware Code, no action may be brought against the Mayor and Council of Wilmington for negligence causing physical injuries or death unless the Mayor is notified in writing, within 1 year from the happening of the injury, "of the time, place, cause and character of the injuries sustained."
The type of defendant can change the rules: a public body brings immunity, a damages limit and possible notice requirements that a private park or homeowner does not. Who owned or ran the facility, whether a county, town or Wilmington was involved, and who made or sold the equipment are the details that sort this out.