David Benno Schaefer

US Patent:

20040103749, Jun 3, 2004

Filed:

Nov 19, 2003

Appl. No.:

10/719946

Inventors:

David Schaefer - Champlin MN, US

International Classification:

B23Q016/00

US Classification:

074/81300R

Abstract:

A new and improved reduced pressure index table for supporting a workpiece on a machine tool includes a base with a workpiece supporting table on one end of a support screw shaft for rotation to index the workpiece for machine tool operations and a closely coupled locking plate on the other end of the support screw shaft with a key lock for making accurate steps in precision increments. A pneumatically operated drive system is provided for rotating the table in two directions about a longitudinal axis of the support screw and an indexing wheel is provided adjacent to the screw shaft having a plurality of index slots spaced angularly around the periphery for securing the table in a selected fixed positions. Two secured pins on the locking plate are provided for engaging preset holes to lock the screw shaft and the workpiece supporting table in a fixed position and when the locking plate is retracted, the table is then permitted to rotate toward a next indexing position.

US Patent:

20090014499, Jan 15, 2009

Filed:

Jul 11, 2007

Appl. No.:

11/776486

Inventors:

Bryan R. Seppala - Mahtomedi MN, US
Jon B. DCamp - Savage MN, US
Harlan L. Curtis - Champlin MN, US
David W. Schaefer - Champlin MN, US
Gary L. Deering - Maple Grove MN, US

Assignee:

HONEYWELL INTERNATIONAL INC. - Morristown NJ

International Classification:

B23K 31/02
B23K 20/00
B23K 37/04

US Classification:

228102, 228 8

Abstract:

Systems and methods for automatically attaching preforms to substrates. An example system includes a nest, a first component that places a substrate into the nest, a second component that places a preform on the substrate in the nest, a tacking device that tacks the preform to the substrate, a plurality of sensors that sense operational states of the components and the tacking device, and a controller that automatically controls operations of the components and the tacking device based on the sensed operational states.