Hearing protective earplug

Description

FIG. 1 is a perspective view of a hearing protective earplug showing a first embodiment of our new design;

FIG. 2 is a right side elevational view thereof, the left side front and rear elevational views view being a mirror image;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a perspective view of a hearing protective earplug showing a second embodiment of our new design; and,

FIG. 6 is a bottom plan view thereof.

It should be understood that the front, rear, left and right side elevational drawings for the second embodiment are identical to the drawing illustrated in FIG. 2. Moreover, the top plan view of the second embodiment is identical to that illustrated in FIG. 4.

Referenced Cited
U.S. Patent Documents
D242743 December 14, 1976 Leight
D253723 December 18, 1979 Leight
D265129 June 22, 1982 Leight
D307325 April 17, 1990 Gardner, Jr.
D307635 May 1, 1990 Gardner, Jr.
D307636 May 1, 1990 Gardner, Jr.
2573923 November 1951 Mezz
2670738 March 1954 Gibbons
2804072 August 1957 Genzer
3131241 April 1964 Mendelson
5074375 December 24, 1991 Grozil
Other references
  • Excel.TM. Foam Earplug, Safety Supply America Circular No. 77, (1993). Airsoft.RTM. Earplug, Global Occupational Safety Catalog, 330SC, p. 70 (1992). Flexiplug.RTM. Earplug and Reusable Earplugs, Lab Safety Supply, 1993 General Catalog, p. 123. Whisper.TM. Earplug and Tasco Tri-Fit Earplug, Lab Safety Supply, 1993 General Catalog, p. 124.
Patent History
Patent number: D371193
Type: Grant
Filed: May 16, 1994
Date of Patent: Jun 25, 1996
Assignee: Cabot Safety Intermediate Corporation (Boston, MA)
Inventors: Brian C. Myers (Sturbridge, MA), Donald D. Kidwell (Indianapolis, IN)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: I. Simmons
Law Firm: Fishman, Dionne & Cantor
Application Number: 0/22,900
Classifications
Current U.S. Class: Ear Plug Or Nose Clip (D24/106)