A container closure includes a body for mounting on the container. The body defines a dispensing orifice. A flow control device, such as a lid, is disposed on the body for being moved between positions opening and closing the dispensing orifice. A tamper-indicating member is provided as a unitary extension...http://www.google.com/patents/US5201440?utm_source=gb-gplus-sharePatent US5201440 - Closure with tamper-evident tear-off panel unitary with a flow control element
