Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
230 words
A lock preferably for a burglar alarm for marking articles for sale, said lock comprising two members automatically interengaging when one member (1) is inserted in a cavity (7) in the other member (5, 6) wherein said first member (1) comprises a rod-shaped body, the inserting end of which is completely or partially pointed, said rod-shaped body engaging a third member (8) loosely inserted in the cavity (7) in the second member, wherein a spring with an upward elastic force is situated in the cavity below the loosely inserted third member, and wherein the inner sides of the cavity incline towards the inlet of the cavity (7), the third member (8) being provided with means adapted to cooperate with a corresponding inner surface of the second member (5, 6) on one side and to engage the rod-shaped body on another side so as to be pressed against said body in case the latter is subjected to a pull, characterized in that said means consists of an oblique upward projection (10) integral with the third member (8) and inclined so as to be slidable along said inclined inner surface of the second member (5, 6), said projection (10) being provided at the top with a bending forming a barb (16) and the rod-shaped body of the first member (1) comprising a notch (2) cooperating with the rim of the barb (16).
Claim 2
Dependent Claim
230 words
A lock preferably for a burglar alarm for marking articles for sale, said lock comprising two members automatically interengaging when one member (1) is inserted in a cavity (7) in the other member (5, 6) wherein said first member (1) comprises a rod-shaped body, the inserting end of which is completely or partially pointed, said rod-shaped body engaging a third member (8) loosely inserted in the cavity (7) in the second member, wherein a spring with an upward elastic force is situated in the cavity below the loosely inserted third member, and wherein the inner sides of the cavity incline towards the inlet of the cavity (7), the third member (8) being provided with means adapted to cooperate with a corresponding inner surface of the second member (5, 6) on one side and to engage the rod-shaped body on another side so as to be pressed against said body in case the latter is subjected to a pull, characterized in that said means consists of an oblique upward projection (10) integral with the third member (8) and inclined so as to be slidable along said inclined inner surface of the second member (5, 6), said projection (10) being provided at the top with a bending forming a barb (16) and the rod-shaped body of the first member (1) comprising a notch (2) cooperating with the rim of the barb (16).
Claim 3
Dependent Claim
32 words
A lock as claimed in claim 1, characterized by the third member (8) being of a magnetizable material and the second member (5, 6) being of a non-magnetizable material such as plastics.
Claim 4
Dependent Claim
53 words
A lock as claimed in claim 1, characterized by the top side (5) of the second member being provided with openings allowing the third member (8) to be pressed into the cavity (7) by means of an implement in such a manner that the first member (1) can be removed from the lock.
Claim 5
Dependent Claim
41 words
A lock as claimed in claim 1, characterized by the inner side of the cavity (7) in the second member (5) being reinforced opposite the inclined surface by means of a hard material such as for instance a brass plate (15).
Claim 6
Dependent Claim
31 words
A lock as claimed in claim 1, characterized by the third loosely positioned member (8) being shaped as a disc with an inclined upward projection (10) pressed up from the disc.
Claim 7
Dependent Claim
43 words
A lock as claimed in claim 5, characterized by the rim of the barb (16) towards the first member (1) being shaped as part of a circular arc with a radius fitting the radius of the rod-shaped body of the first member (1).
Claim 8
Dependent Claim
52 words
A lock as claimed in claim 1, characterized by the second member comprising two ultrasonically welded plastic portions, viz. an upper portion (5) and a lower portion (6), and by the lower portion being cast with an upwardly inclined plastic flap forming the spring (11) supporting the loosely positioned third member (8).
Claim 9
Dependent Claim
18 words
A lock as claimed in claim 7, characterized by the flap (11) being a substantially U-shaped tongue (19).