Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
174 words
A child-resistant closure comprising, in combination: an inner threaded member adapted to be screwed onto a threaded container neck, an outer member loosely encompassing said inner member in detachable interengagement, said inner and outer members being capable of relative rotary and axial sliding movement, internal splines formed on said outer member, external splines formed on said inner member, said splines being engageable in one position oF axial displacement of said inner and outer members and disengaged in a second axial position of said members, lug means formed on one of said members and interposed said members, a plurality of inclined leaf spring members interposed said inner and outer members in the path of travel of said lug means to maintain said inner and outer members in said second axial position and drive said inner and outer members as a unit in the tightening direction but slip over said lug means freely in the untightening direction to prevent unscrewing of said inner member, and means for loosely retaining said inner member within said outer member.
Claim 2
Dependent Claim
174 words
A child-resistant closure comprising, in combination: an inner threaded member adapted to be screwed onto a threaded container neck, an outer member loosely encompassing said inner member in detachable interengagement, said inner and outer members being capable of relative rotary and axial sliding movement, internal splines formed on said outer member, external splines formed on said inner member, said splines being engageable in one position oF axial displacement of said inner and outer members and disengaged in a second axial position of said members, lug means formed on one of said members and interposed said members, a plurality of inclined leaf spring members interposed said inner and outer members in the path of travel of said lug means to maintain said inner and outer members in said second axial position and drive said inner and outer members as a unit in the tightening direction but slip over said lug means freely in the untightening direction to prevent unscrewing of said inner member, and means for loosely retaining said inner member within said outer member.
Claim 3
Dependent Claim
30 words
The closure of claim 1, wherein said lug means comprises at least two vertically upwardly extending projections integrally molded on the exterior of the upper surface of said inner member.
Claim 4
Dependent Claim
31 words
The closure of claim 1, wherein said leaf spring members comprise at least two downwardly extending flexible tabs integrally molded on the interior of the upper surface of said outer member.
Claim 5
Dependent Claim
17 words
The closure of claim 1, wherein said inner and outer members are formed of a plastic material.
Claim 6
Dependent Claim
66 words
The closure of claim 1, wherein said means for loosely retaining said inner member comprises an outwardly extending first circumferential bead integrally formed on the exterior of the lower portion of said inner member and an inwardly extending second circumferential bead of a diameter less that the diameter of said first circumferential bead integrally formed on the interior of the lower portion of said outer member.
Claim 7
Dependent Claim
39 words
The closure of claim 1, wherein at least one of said sets of internal and external splines is closed on the end opposite said other set of splines for limiting the axial movement between said inner and outer members.
Claim 8
Dependent Claim
28 words
The closure of claim 1, further including a vertically extending ring wall integrally formed with the periphery of the exterior of the upper surface of said inner member.
Claim 9
Dependent Claim
83 words
The closure of claim 1, wherein said lug means comprises at least two inclined ratchet lugs integrally molded on the exterior of the upper surface of said inner member, each of said inclined ratchet lugs comprising, a ramp portion inclined upward in the direction in which said inner member would be unscrewed from said container, and a vertical wall portion joined to the upper terminus of said ramp portion and integrally molded on the exterior of the upper surface of said inner member.