PAUL E HOLLIS
Engineers in Harrisburg, PA

License number
Pennsylvania PE031580E
Category
Engineers
Type
Professional Engineer
Address
Address
Harrisburg, PA 17112

Professional information

Paul Hollis Photo 1

Orthogonal Positioning Mechanism For An Automated Machine

US Patent:
5493772, Feb 27, 1996
Filed:
Aug 10, 1994
Appl. No.:
8/288535
Inventors:
Paul E. Hollis - Harrisburg PA
Assignee:
The Whitaker Corp. - Wilmington DE
International Classification:
H01R 4326, H05K 1302, H05K 1304
US Classification:
29747
Abstract:
A machine (10) for inserting metal hold down clips into a connector housing (26) is disclosed. An improved positioning mechanism (14) is provided for accurately positioning the housing (26) with respect to the parts to be inserted. The positioning mechanism (14) includes a track (64) for receiving and guiding the connector housing along a feed path and through an insertion workstation (60) where the hold down clips are inserted. The track (64) is vertically movable by a servo motor (100) while an adjacent feed mechanism (160) positions the connector housing along the track. The adjacent feed mechanism (160) is coupled to the track so that it moves vertically with movement of the track but moves horizontally by means of a second servo motor (190) independent of movement of the track. Both servo motors are mounted to the frame (12) structure and, therefore, do not contribute to the mass of the moving mechanisms.


Paul Hollis Photo 2

Mechanism For Rotating A Workpiece

US Patent:
5407184, Apr 18, 1995
Filed:
Oct 28, 1993
Appl. No.:
8/144268
Inventors:
Paul E. Hollis - Harrisburg PA
Edward N. Meyers - Hummelstown PA
Assignee:
The Whitaker Corporation - Wilmington DE
International Classification:
B23Q 318
US Classification:
269 60
Abstract:
A mechanism for rotating a machine element and in particular for rotating a mandrel which holds a workpiecein a machine comprises a first frame member having a substantially linear road surface. A machine element is rotatably secured to a carrier on an axis extending transverse to the road surface. The machine element includes a wheel member having a substantially circular wheel surface adapted to engage the road surface, and may include a mandrel adapted to hold a workpiece. A first drive mechanism is operable for moving the carrier and the first frame member relatively together for engagement of the wheel surface with the road surface, and for moving or at least permitting movement of the carrier and the first frame member relatively apart for disengagement of the wheel surface from the road surface. A second drive mechanism is operable to produce relative movement of the carrier parallel to the road surface. Actuation of the second drive mechanism when the road surface is engaged with the wheel surface causes rotation of the machine element, and thereby rotates a workpiece held in a mandrel of the machine element.


Paul Hollis Photo 3

Fixture For Handling Articles

US Patent:
5579885, Dec 3, 1996
Filed:
Jun 17, 1993
Appl. No.:
8/078532
Inventors:
Paul E. Hollis - Harrisburg PA
Michael G. Kiapokas - Lancaster PA
Assignee:
The Whitaker Corporation - Wilmington DE
International Classification:
B65G 1100
US Classification:
193 40
Abstract:
A fixture for handling an article comprises a body which defines a track having a length which extends between upstream and downstream ends. The track is configured for confining the article to sliding movement along the length of the track. The track is open to an outside of the body along at least a portion of its length so as to provide access for performing an operation of the article. The body has a first finger mechanism disposed relatively upstream along the track for permitting the article to pass along the track in a downstream direction and for preventing the article to pass the first finger mechanism in an upstream direction. A second finger mechanism is disposed downstream from the first finger mechanism for preventing inadvertent downstream movement of the article.