The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1987
Filed:
Feb. 25, 1986
John S Lee, Coon Rapids, MN (US);
Daniel L Lozinski, Coon Rapids, MN (US);
Micro Component Technology, Inc., St. Paul, MN (US);
Abstract
A vacuum head (10) for pick-up and placement of integrated circuit devices (16, 16'). The apparatus includes an outer housing (18) enclosing therewithin an inner tip assembly (34). The inner tip assembly (34) is disposed for reciprocation through and past an orifice (24) formed in a fitting (26) closing one end of the casing (20) of the outer housing (18). The inner tip assembly (34) has formed therein a shoulder (76) which, when the assembly (34) is moved to an extended position, can engage a seat (78) formed in an inner surface of the fitting (26). An O-ring (80) can be interposed between the shoulder (76) and the seat (78) to preclude vacuum generated in vacuum chamber (30) from being directed other than through an orifice (68) formed in the inner tip assembly (34). An air cylinder (48) is provided to actuate the inner tip assembly (34) for movement between retracted and extended positions.