Bond pattern for a personal respiratory protection device

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Description

FIG. 1 is a perspective view of a bond pattern for a personal respiratory protection device, showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a back elevational view thereof.

FIG. 4 is a top plan view thereof, the bottom plan view being identical.

FIG. 5 is a right side elevational view thereof, the left side elevational view being identical.

FIG. 6 is a perspective view of a second embodiment of the bond pattern, showing our new design.

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a right side elevational view thereof, the left side elevational view being identical.

The broken line showing is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D72020 February 1927 Labram
D109390 April 1938 Bux
D112562 December 1938 Huizing
D326541 May 26, 1992 McBrearty, Jr.
D380545 July 1, 1997 Nozaki et al.
1440358 December 1922 Whetstone
1628090 May 1927 Weiss
3288138 November 1966 Sachs
3855046 December 1974 Hansen et al.
4628927 December 16, 1986 Ward
5035006 July 30, 1991 Hetz et al.
5322061 June 21, 1994 Brunson
Foreign Patent Documents
WO 96/2869 September 1996 WOX
Other references
  • Sonobond product literature for Ultrasonic Cylinder Arm Machines (admitted prior art). Branson Ultrasonics Corporation Data Sheet PW-45 for Ultrasonic Fabric Sealing System Models F-90 and FS-90 (1992). Herrmann Ultrasonics product brochure for Ultrasonic Bonding and Cutting of Nonwovens, Textiles, Film and Paper Non-Contact/Non-Wear (admitted prior art). Cera France product brochure for Rotosonic 250T Ultrasonic Seaming Machine (admitted prior art). 3M 1818 Surgical Mask (admitted priot art). 3M 1820 Surgical Mask (admitted prior art). 3M 1823 Surgical Mask (admitted prior art). Tecnol PCM 2000 Surgical Mask (admitted prior art). Tecnol Duckbill.RTM. Surgical Mask (admitted prior art). American Threshold Health Care Secure-Gard Surgical Mask with Breeze.TM. Filtration Fabric (admitted prior art).
Patent History
Patent number: D416323
Type: Grant
Filed: Jan 24, 1997
Date of Patent: Nov 9, 1999
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Christopher P. Henderson (Durham), John W. Louks (North Hudson, WI), Donald L. Pochardt (Hastings, MN), Desmond T. Curran (Durham)
Primary Examiner: Stella Reid
Attorney: Karl G. Hanson
Application Number: 0/65,342
Classifications
Current U.S. Class: D24/1101
International Classification: 2902;