Two-pan balance

- Ohaus Corporation
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Description

FIG. 1 is a front, left, top, perspective view of a two-pan balance, showing a first embodiment of our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof, the right side being a mirror image;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view of the base thereof below the pans, taken from line 7—7 of FIG. 2;

FIG. 8 is a front, left, top, perspective view of a two-pan balance, showing a second embodiment of our new design including removable bowls on the pans;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a left side elevational view thereof, the right side being a mirror image;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a bottom view thereof; and,

FIG. 14 is an exploded view thereof showing the bowls removed from the pans.

The structures shown in broken line represent environmental structure forming no part of the claimed design.

Claims

The ornamental design for a two-pan balance, as shown and described.

Referenced Cited
U.S. Patent Documents
D139917 January 1945 Dreyfuss
4042050 August 16, 1977 Myers
D400813 November 10, 1998 Toriumi et al.
D443840 June 19, 2001 Ruban
Other references
  • Changshu Tianshun web page, http://www.tsscale.com/ebalance.htm (undated; accessed Nov. 8, 2007).
  • Nanjing East High Measurement Co., Ltd., MEASURETEK® web page, http://www.scalesline.com/products/Mechanical-Balance-2.html (undated; accessed Nov. 9, 2007).
  • Ohaus Corporation, “Harvard Trip Balance Series 1400 and 1500 Instruction Manual,” (May 28, 2004).
  • Ohaus Corporation, “Primer Balance Activity Guide,” (2003).
  • Ohaus Corporation, “School Balance Model SB1200” brochure (undated).
  • Ohaus Scale Corp., “Harvard Trip Balances by Ohaus” brochure (undated).
  • Ohaus Scale Corporation, “Even Arm Balance” brochure (undated).
  • “Model 1200 School Balance: The Creative Learning Tool” brochure (undated).
Patent History
Patent number: D568189
Type: Grant
Filed: Jul 9, 2007
Date of Patent: May 6, 2008
Assignee: Ohaus Corporation (Pine Brook, NJ)
Inventors: Richard M. O'Grady (Southington, CT), Zbigniew Pobocha (Brookside, NJ), Thomas Rapa (Bradley Beach, NJ), James W. Ruban (Honesdale, PA), Michael Nuzzi (New York, NY)
Primary Examiner: Antoine D. Davis
Attorney: Ropes & Gray LLP
Application Number: 29/281,987
Classifications
Current U.S. Class: Beam Or Balance Type (D10/90)