Helmet respirator

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Description

FIG. 1 is a perspective view of a helmet respirator showing my new design with the visor shown in raised condition;

FIG. 2 is a front perspective view thereof, with a filter cartridge detached for ease of illustration;

FIG. 3 is a front perspective view thereof, shown with the filter attached;

FIG. 4 is a perspective view thereof, shown with the visor in lowered condition;

FIG. 5 is a front perspective view thereof, shown with the visor in raised condition;

FIG. 6 is a rear perspective view thereof, shown with the filter attached;

FIG. 7 is a rear perspective view thereof, shown with the filter detached;

FIG. 8 is a bottom perspective view thereof, shown with the filter attached, the internal features forming no part of the design; and,

FIG. 9 is a bottom perspective view thereof, shown with the filter detached, the internal features forming no part of the design.

The broken line showing of the head detail and the portions of the figures shown in broken lines are for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a helmet respirator, as shown and described.

Referenced Cited
U.S. Patent Documents
2688962 September 1954 Summers
D359145 June 6, 1995 Harrison et al.
5549104 August 27, 1996 Crump et al.
5575278 November 19, 1996 Bonhomme et al.
6016805 January 25, 2000 Burns et al.
D456505 April 30, 2002 Wolf et al.
6389606 May 21, 2002 Galet et al.
6826783 December 7, 2004 Grove et al.
20040182385 September 23, 2004 Uusitalo et al.
Other references
  • Abrasive Blasting Helmet and Welding Helmet, p. 273, Lab Safety Supply, 2000.
Patent History
Patent number: D545426
Type: Grant
Filed: Sep 26, 2003
Date of Patent: Jun 26, 2007
Assignee: Helmet Integrated Systems Limited (Letchworth, Hertfordshire)
Inventor: Colin A. Church (Welwyn Garden City)
Primary Examiner: Ian Simmons
Assistant Examiner: Christopher Lee
Attorney: Hodgson Russ LLP
Application Number: 29/190,874
Classifications
Current U.S. Class: Helmet Type (D24/110.3)