Patent ID: 7146688

Claim:
A chip, comprising: a base; a first clasping assembly coupled to said base; and a second clasping assembly coupled to said base, wherein each of said first and second clasping assemblies includes: a lower spring member coupled to said base, wherein said lower spring member includes a generally sinusoidal structure having a trough and terminating in a lower lip; an upper spring member coupled to said base, wherein said upper spring member includes a generally U-shaped structure having first and second arms separated by an opening through which said lower spring member adaptively lodges when engaged by a user, and wherein said first and second antis connect integrally to said base and terminate at an upper lip; and an entrance defined by said upper lip and a portion of said generally sinusoidal structure, said entrance being normally closed under a resilience of said upper and lower spring members, said entrance being opened to provide access to said trough when said lower lip is pressed down or said upper lip is lifted up.