Patent ID: 11859692
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 16:
17. A closure system, comprising:
a first element having a through passage with a key slot;
a removable lynch pin received in said through passage, said lynch pin comprising a protrusion that mates with said key slot when the lynch pin is rotated to a first position to allow said lynch pin to be received in and removed from said through passage, and wherein said protrusion serves as a locking structure that prevents said lynch pin from being removed from said through passage when said lynch pin is rotated away from said first position; and
a spring retainer connected to said lynch pin and arranged to bias said lynch pin to a rotational position away from said first position to prevent said lynch pin from being removed from said through passage;
wherein said removable lynch pin comprises a head, said spring retainer comprises a generally circular spring having offset ends received in respective openings in said head, and said spring retainer has a first released position in which the lynch pin can be rotated freely within the through passage, and a second closed position in which an intermediate portion of the spring retainer is held by spring force against an outer surface of the lynch pin and abutting side portions of the spring retainer are arranged to abut respective sides of the first element to prevent rotational movement of the lynch pin to said first position.