O-ring mounting machine

Claim 1

An apparatus for mounting O-rings over the male end of a part fitting at the desired mounting position, which comprises a. a supporting frame, b. a mandrel detachably mounted on such frame having crosssectional dimensions sufficiently small to permit O-rings to be mounted to slide readily down the sides thereof over a substantial portion of its length, one end of said mandrel being flared to cross-sectional dimensions greater than that of the normal diameter of the openings of said O-rings, c. an axial chamber provided at said flared end having crosssectional dimensions sufficient to receive the end of the fitting upon which the O-ring is to be mounted, and of sufficient length so that when the end of said fitting is completely inserted in said chamber, an O-ring which slips off the edge of said flared end is received directly over the desired mounting position on said fitting; and d. means for engaging a single O-ring and moving it axially over said flared end, thereby mounting said O-ring over a fitting contained within said axial chamber, comprising: 1. a support, 2. a pair of fingers pivotally mounted on said support and spring biased toward the closed position, 3. means defining a pair of converging cam surfaces, and 4. cam follower means provided at an end of each of said fingers, the arrangement being such that in approaching the uppermost position said cam follower means engage said cam surface means and cause said fingers to open, thereby permitting an O-ring to fall past said fingers, and e. means positioned above said pair of fingers adapted to support a plurality of O-rings mounted on said mandrel and to release a single O-ring on actuation.

Claim 2

An apparatus for mounting O-rings over the male end of a part fitting at the desired mounting position, which comprises a. a supporting frame, b. a mandrel detachably mounted on such frame having crosssectional dimensions sufficiently small to permit O-rings to be mounted to slide readily down the sides thereof over a substantial portion of its length, one end of said mandrel being flared to cross-sectional dimensions greater than that of the normal diameter of the openings of said O-rings, c. an axial chamber provided at said flared end having crosssectional dimensions sufficient to receive the end of the fitting upon which the O-ring is to be mounted, and of sufficient length so that when the end of said fitting is completely inserted in said chamber, an O-ring which slips off the edge of said flared end is received directly over the desired mounting position on said fitting; and d. means for engaging a single O-ring and moving it axially over said flared end, thereby mounting said O-ring over a fitting contained within said axial chamber, comprising: 1. a support, 2. a pair of fingers pivotally mounted on said support and spring biased toward the closed position, 3. means defining a pair of converging cam surfaces, and 4. cam follower means provided at an end of each of said fingers, the arrangement being such that in approaching the uppermost position said cam follower means engage said cam surface means and cause said fingers to open, thereby permitting an O-ring to fall past said fingers, and e. means positioned above said pair of fingers adapted to support a plurality of O-rings mounted on said mandrel and to release a single O-ring on actuation.