Patent ID: 7182328

Claim:
A spring pin assembly ( 232 ) for disposition within a recess ( 230 ) of a table ( 226 ) to bias a work piece ( 222 ) against a stop ( 224 ), said assembly ( 232 ) comprising: a circular housing ( 238 ) including a top wall ( 250 ) and a side wall ( 248 ); a retaining pin ( 240 ) pivotably supported by and partially disposed within said housing ( 238 ); a pivotal connection between said housing ( 238 ) and said retaining pin ( 240 ) for biasing the work piece ( 222 ) against the stop ( 224 ); a holding mechanism ( 234 ) for removably retaining said housing ( 238 ) in the recess ( 230 ) of the table ( 226 ) without interfering with movement of the work piece ( 222 ) over the table ( 226 ); and a tool receiving device ( 236 ) disposed below said top wall ( 250 ) of said housing ( 238 ) for engaging said holding mechanism ( 234 ) with a tool below said top wall ( 250 ) for installing and removing said housing ( 238 ) from the recess ( 230 ) in the table ( 226 ).