Abstract: The present invention embodies an upright cylindrical element or peg on the horizontal flange of a tray which is received in snap, reversible locking engagement within the closed bore of a cylindrical female element provided in a corresponding location on the horizontal flange on a lid so that the lid and tray can be firmly and securely locked together. The male and female elements are formed during the thermoforming process used to form the lid and tray wherein the peg or male snap part is provided with an enlarged diameter portion at its closed top end or head which is received in snap engagement past a smaller diameter annular rim formed in the opening to the bore of the female cylindrical element. The female element also includes a side wall which is tapered from bottom to top for receiving the head of the peg or mating cylindrical male element which snaps over and past the annular rim.

Abstract: A buckle for a watch band comprising a stopper fixture slidably mounted on one end of a band and a linking member fixed to the other end of the band to join to said stopper fixture. The stopper fixture includes a pair of side plates, a bottom plate and a top plate. The top plate is provided with a joint opening in the shape of a wide opening connected to a narrow opening in the direction of the band.

Abstract: The disclosure herein describes a strap buckle which comprises a male elet and a female element, each having a strap engaging portion on one side thereof; the male element has a female engaging part on its opposite side which includes a T-shaped edge member and first locking members; the female element has a male engaging part on its opposite side and is formed of a housing having a shape corresponding to that of the T-shaped edge member, the housing including further locking members which are engageable with the locking members on the male element. To release the buckle, two operations are required: a first lateral movement which consists in forcing the female and male elements towards one another thereby applying pressure against the spring blade to free the interengaged locking members, and a second continuous movement which is normal to the first movement which consists in moving, parallel to and away from one another, the T-shaped member and the housing while maintaining pressure on the spring blade.