Inlet port adaptor on a full-face respirator lens

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Description

FIG. 1 is a perspective view of a inlet port adaptor on a full-face respirator lens, showing the new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a right-side elevational view thereof. The left-side elevational view is a mirror image of the right-side elevational view.

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines form no part of the claimed design other than to illustrate the orientation of the inlet port adaptor on a full-face respirator lens. The shading provided in the drawings is furnished merely to indicate contour; it is not indicative of any particular texture.

Referenced Cited
U.S. Patent Documents
D378610 March 25, 1997 Reischel et al.
5224474 July 6, 1993 Bloomfield
5924420 July 20, 1999 Reischel et al.
Other references
  • Pro-Tech Cosmo.TM. product literature (May 1997). Wilson Safety Products 6000 Series Supplied Air Line product literature. North Chemical Protection product literature. Kasco Venus product literature. Survivair Air Purifying Respirators product literature. LifeAir.TM. 1500 product literature. Cabot Safety AOSafety.TM. Respiratory Products product literature. 3M.TM. Continuous Flow Systems Matrix product literature (Jun. 1998). ISI Asbestos Respiratory Protection product literature. Omnistar.TM. Respirator System product literature.
Patent History
Patent number: D421118
Type: Grant
Filed: Jul 20, 1998
Date of Patent: Feb 22, 2000
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Joseph G. Reischel (Woodbury, MN), Frank J. Fabin (Eagan, MN), Michael J. Bartholomew (Lake Elmo, MN), David P. Knivsland (North St. Paul, MN)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Attorney: Karl G. Hanson
Application Number: 0/90,934
Classifications
Current U.S. Class: D24/1106; Respirator, Vaporizer, Or Inhalation Tube (4) (D24/110); D24/1101; D24/1102
International Classification: 2902;