Laser beacon

- Laser Alignment, Inc.
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Description

FIG. 1 is a top front right side perspective view of a laser beacon illustrating our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a top front right side perspective of an alternative embodiment of a laser beacon illustrating our design; and,

FIG. 9 is a top plan view of the embodiment in FIG. 8, the remaining views of the embodiment in FIG. 8 being identical with the embodiment in FIGS. 1-7.

Referenced Cited
U.S. Patent Documents
3936197 February 3, 1976 Aldrink et al.
4062634 December 13, 1977 Rando et al.
4519705 May 28, 1985 Morrow
4676598 June 30, 1987 Markley et al.
4679937 July 14, 1987 Cain et al.
4751782 June 21, 1988 Ammann
4830489 May 16, 1989 Cain et al.
4895440 January 23, 1990 Cain et al.
4971440 November 20, 1990 Winckler et al.
4973158 November 27, 1990 Marsh
4993161 February 19, 1991 Borkovitz
5000564 March 19, 1991 Ake
Other references
  • "AMA Diode Level DL-150, New Diode Level, with Automatic Adjustment of the Horizontal and Vertical Planes," Dec., 1985, Germany, pp. 1-4. Laser Alignment, "Laser Beacon Operation Manual," Jul. 1973, Grand Rapids, Mich. Laser Alignment, "Laser Beacon Operation Manual for General Construction," Jul. 1973, Grand Rapids, Mich., pp. 2, 9 and 10. Laser Alignment, "Laser Beacon 5000 Series for Construction and Machine Control," Jan. 1986, Grand Rapids, Mich., pp. 1 and 2. Laser Alignment, "LB-1 The Quality Laser System at an Economical Price," Jan., 1983, Grand Rapids, Mich., p. 1. Laser Alignment, "LB-2 Horizontal and Vertical Control," Jan., 1983, Grand Rapids, Mich., pp. 1-4. Laser Alignment, "LB-4 Dual Grade Laser Beacon," Sep. 1989, Grand Rapids, Mich., pp. 1-3. Laser Alignment, "Laser Beacon 6025, The World Class Laser," Sep. 1986, Grand Rapids, Mich., pp. 1-3. Laser Alignment. "Laser Beacon 3000 Operation Manual," May, 1978, Grand Rapids, Mich., page cover 2 and 3.
Patent History
Patent number: D348227
Type: Grant
Filed: Jul 13, 1992
Date of Patent: Jun 28, 1994
Assignee: Laser Alignment, Inc. (Grand Rapids, MI)
Inventors: Edward G. Nielsen (Grand Rapids, MI), Willard G. Vogelaar (Grand Rapids, MI), Philip O. Gerard (Lowell, MI)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine O. Davis
Law Firm: Price, Heneveld, Cooper, DeWitt & Litton
Application Number: 7/912,779
Classifications
Current U.S. Class: Spirit Level (D10/69)