Venturi unit for a vacuum lifter
Description
FIG. 1 is a front perspective view of a venturi unit for a vacuum lifter showing my new design;
FIG. 2 is a rear perspective view thereof.
The undisclosed bottom view is the same as the top view as shown in FIGS. 1 and 2.
Referenced Cited
U.S. Patent Documents
Other references
| 3497254 | February 1970 | Lutolf et al. |
| 4685714 | August 11, 1987 | Hoke |
- Anver Corp. brochure, p. 41, Single AL1001 Air-Lift Generator (bottom).
Patent History
Patent number: D310594
Type: Grant
Filed: Oct 1, 1987
Date of Patent: Sep 11, 1990
Inventor: Karl E. Johansson (S-565 00 Mullsjo)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 7/103,567
Type: Grant
Filed: Oct 1, 1987
Date of Patent: Sep 11, 1990
Inventor: Karl E. Johansson (S-565 00 Mullsjo)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 7/103,567
Classifications
Current U.S. Class:
Conveying, Lifting, Or Transferring Article (D34/28)
