Portable lifting unit

Description

FIG. 1 is a perspective view of the portable lifting unit to show our new design;

FIG. 2 is a front elevational view of the portable lifting unit depicted in FIG. 1;

FIG. 3 is a bottom view of the portable lifting unit depicted in FIG. 1;

FIG. 4 is a right side elevational view of the portable lifting unit of FIG. 1, the left side elevational view being a mirror image thereof;

FIG. 5 is a back elevational view of the portable lifting unit depicted in FIG. 1 ; and,

FIG. 6 is a top view of the portable lifting unit depicted in FIG. 1.

The hanging lifting bar is shown broken away in FIG. 3 and 6 for convenience of illustration.

Referenced Cited
U.S. Patent Documents
D241839 October 1976 Kammeraad
D285378 August 26, 1986 Norell
D341242 November 9, 1993 Thorby
D349996 August 23, 1994 Litwiller
1961119 May 1934 Ettinger
2846091 August 1958 Heffner
3952893 April 27, 1976 Kolesar
4484366 November 27, 1984 Koontz
4761842 August 9, 1988 Weiner
5431526 July 11, 1995 Peterson et al.
5445487 August 29, 1995 Koscinski, Jr.
Other references
  • Air Technical Industries, Apr. 1993, p. 4, "Foldable Cranes". Rental Tools & Equipment, 1984, p. 51, 1500 lb Knock-Down Crane.
Patent History
Patent number: D376885
Type: Grant
Filed: Apr 7, 1995
Date of Patent: Dec 24, 1996
Inventors: James E. Carey (Prescott, AZ), Jesse Lackey (Laguna Hills, CA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Cynthia F. Ramirez
Attorneys: Harry M. Weiss, Jeffrey D. Harry M. Weiss & Associates, P.C. Moy
Application Number: 0/37,235
Classifications