Device for spring-loading a needleless innoculator

Claim 1

In combination, an apparatus of the type having an inner core depending from an external housing and slidable therein under the propulsion of a spring incident to powering the apparatus to perform work, and a device for mechanically loading said spring preparatory to said work service of said apparatus, said device comprising a base, a stationary shaft defining a rotation axis and having circumferentially spaced holding teeth radially extending therefrom mounted in a clearance position on said base, a housing member including means defining a connector-receiving compartment oriented transversely of and in facing communication with said stationary shaft, said connector-receiving compartment of said housing member being operatively arranged to partake of a pivotal traverse in eccentric relation about said stationary shaft, a connector having an operative inserted position within said connector-receiving compartment, said connector having a depending end with lateral means projecting therefrom for establishing meshing engagement with said holding teeth of said stationary shaft during said pivotal traverse thereof, and apparatus gripping means circumferentially spaced about said opening movable from a starting position radially inward for establishing gripping contact with said depending inner core only after initial angular movement of said connector through said pivotal traverse thereof, whereby said depending apparatus inner core end is readily inserted and removed from said device in the absence of established gripping contact therewith during said initial angular movement but otherwise is held by said established gripping contact for the loading of said propelling spring during the balance of the angular movement of said pivotal traverse.