Andrew J Herold, Age 602006 N Exeter Ln, Bloomington, IN 47408

6467570, Oct 22, 2002

May 15, 2001

09/855983

Andrew J. Herold - Bloomington IN

Arvin Technologies, Inc. - Troy MI

F01N 302

181231, 181212, 181249, 181250, 181251, 181253, 181255, 181257, 181258, 181266, 181267, 181268, 181269, 181272, 181273, 181275, 181276

An exhaust processor includes a housing formed to include an interior region and a partition or first spark arrester that partitions the interior region into chambers and includes a wool filter formed to include an opening. The wool filter is positioned to filter unburned carbon particles from combustion product generated by a vehicle engine. The exhaust processor further includes an outer conduit that extends through the opening formed in the wool filter and is formed to include a passage and an inner conduit that extends into the passage and is formed to include an opening through which unburned carbon particles flow from inside the inner conduit to impinge against the outer conduit so that the outer and inner conduits operate as a second spark arrester.

6557908, May 6, 2003

Jul 25, 2001

09/912988

Robert Walter Houtschilt - Livonia MI
Stephen Paul Allen - Commerence Township MI
Kenneth Eugene Cook - Indianapolis IN
Andrew John Herold - Bloomington IN

Arvin Technologies, Inc. - Farmington Hills MI

F16L 2500

285420, 285330, 285252, 285253

An exhaust apparatus includes a first pipe, a second pipe which includes a block, and a clamp positioned around a portion of a periphery of both the first pipe and the second pipe. The clamp is secured to the block.

2008009, Apr 24, 2008

Oct 12, 2005

11/665460

James Carlson - Bloomington IN, US
Andrew Herold - Bloomington IN, US
Ronan Young - Spencer IN, US

Cook Incorporated - Bloomington IN

A61B 8/00

600458000

Medical devices are made visible under ultrasonic or magnetic imaging techniques by adding a series of features on their surfaces. The features are desirably placed at more than one angle to the surface in order to enhance the visibility of the surface. Laser-machining can make a series of depressions or voids that are symmetric with respect to the surface and another series of depressions or voids that are non-symmetric. The pattern of voids is also varied by using more than one size of void, the depth of the voids, and the distribution of voids, i.e. more voids in some areas than others.

5801344, Sep 1, 1998

Feb 24, 1997

8/805092

Andrew J. Herold - Bloomington IN

Arvin Industries, Inc. - Columbus IN

F01N 108

181272

A double throat tuner including a second conduit concentric to a first conduit which connects the gas flow to a first volume tuning chamber having a first effective volume. The radial difference between the first and second conduits and the length of overlap of the first and second conduits in combination with the effective volume of the first tuning chamber attenuates a preselective frequency of sound. This attenuation is for a specific frequency range in addition to the overall attenuation of the complete system including a plurality of conduits serially connected by a respective chamber.

5949035, Sep 7, 1999

Jun 14, 1997

8/849628

Andrew J. Herold - Bloomington IN

Arvin Industries, Inc. - Columbus IN

F01N 718
B23P 1500

181282

A muffler assembly (10, 210, 350) includes top outer shell (12), bottom outer shell (14), and drop-in inner cartridge (16, 212, 352) positioned to lie between top and bottom outer shells (12, 14). Top outer shell (12) abuts bottom outer shell (14) to define seam (71). Seam (71) includes inner surface (73) facing into interior cartridge-receiving chamber (76) defined between top and bottom outer shells (12, 14). Drop-in inner cartridge (16, 212, 352) includes outer edge (75) abutting inner surface (73) of seam (71) to cause drop-in inner cartridge (16, 212, 352) to lie wholly within interior cartridge-receiving chamber (76). Drop-in inner cartridge (16, 212, 352) includes inlet and outlet tubes (86, 88, 214, 216, 354, 356) and baffle system (23, 215, 357) having first side (142, 272) connected to top side (91, 231) of inlet tube (86, 214, 354) and second side (150, 280) connected to bottom side (97, 237) of outlet tube (88, 216, 356). Baffle system (23, 215) includes baffle (20, 220) having perimeter edge (98, 239). Perimeter edge (98, 239) engages top wall (36) of top outer shell (12) and bottom wall (56) of bottom outer shell (14).