Patent ID: 11865378
Assignee: FRANK P. FREY AND COMPANY
Field: Civil engineering (Other fields)
Classification: CPC A  E | IPC A  E

Claim 9:
10. A method of arresting a fall, the method comprising:
positioning a spike assembly relative to an elevated surface while the spike assembly is in a stowed configuration such that a spike member of the spike assembly is displaced from the elevated surface; and
coupling an elongate member to a user such that when the user falls, the weight of the user creates tension in the elongate member,
wherein a trigger assembly is operatively coupled to the spike assembly in a set configuration prior to the user falling, the trigger assembly being configured to move from the set configuration to a released configuration upon the tension being created in the elongate member,
wherein the spike member is configured to pierce the elevated surface as the spike assembly moves towards the deployed configuration,
wherein the trigger assembly retains the spike assembly in the stowed configuration when the trigger assembly is in the set configuration,
wherein the trigger assembly allows the spike assembly to move from the stowed configuration to the deployed configuration when the trigger assembly is in the released configuration,
wherein said spike member is oriented at a first angle relative to said mobile cart when said spike assembly is in the deployed configuration and wherein said spike member is oriented at a second angle relative to said mobile cart when said spike assembly is in the stowed configuration,
wherein the first angle is approximately forty-five (45) degrees, and
wherein the second angle is less than forty-five (45) degrees.