Hollis D Sisk

US Patent:

50235001, Jun 11, 1991

Filed:

Apr 21, 1989

Appl. No.:

7/341167

Inventors:

Hollis D. Sisk - Chesterfield MO

Assignee:

Century Electric, Inc. - St. Louis MO

International Classification:

H02K 1502

US Classification:

310218

Abstract:

The stator laminations for a dynamoelectric machine may be first stacked in a concentric orientation and then skewed in a controlled manner after the stator is wound, with a pair of elliptically shaped alignment slots in each lamination holding a pair of alignment bolts of generally circular cross-section, such that the laminations may be first stacked onto the alignment bolts and then skewed by pivoting the alignment bolts, thereby causing relative radial movement between the laminations and the bolts as the bolts are permitted to slide within the elliptical alignment slots. In a second embodiment, a pair of radial projections on the stator laminations and a pair of channel members which surround the radial projections permit relative radial movement and canting of the projections with respect to the channel member as the channel members are pivoted to skew the stator lamination stack.

US Patent:

41863178, Jan 29, 1980

Filed:

Apr 3, 1978

Appl. No.:

5/893057

Inventors:

Hollis D. Sisk - Chesterfield MO

International Classification:

H02K 900

US Classification:

310 60R

Abstract:

An electric motor of the type including a housing, a shaft extending through the housing, blower blades mounted on the shaft and an endplate mounted on the housing is improved due to the inclusion of a partial baffle formed with the endplate and extending toward and in proximity with the blower blades for forming a partial annular spaced interface with the blower blades.

US Patent:

46140239, Sep 30, 1986

Filed:

Dec 1, 1983

Appl. No.:

6/547576

Inventors:

Hollis D. Sisk - Chesterfield MO

Assignee:

Century Electric, Inc. - St. Louis MO

International Classification:

H02K 15095

US Classification:

29598

Abstract:

The disclosure depicts a main field coil for use in a dynamoelectric machine. The main field coil has a support having a predetermined geometry and a solid strand electrical wire wound about the support. Coil head air vents of predetermined width are inner spaced in the wound electrical wire. A structurally rigid removable means for forming the air vents is located at least partially in the air vents. The removable means is removed from the air vents after the electrical wire is wound about the support. The present disclosure describes the apparatus and a method for forming the air vents in the main field coil.

US Patent:

48854956, Dec 5, 1989

Filed:

Jul 18, 1988

Appl. No.:

7/220739

Inventors:

Hollis D. Sisk - Chesterfield MO

Assignee:

Century Electric, Inc. - St. Louis MO

International Classification:

H02K 100

US Classification:

310216

Abstract:

An end plate for a squirrel cage amortisseur winding is made from four angular segments, each of the segments being of the same shape and size, the segments having portions thereof cut out along the annular inner surface and the outer edges to accommodate close nesting of the angular segments across both the width and length of a sheet of raw material to minimize waste as they are cut therefrom.

US Patent:

40745600, Feb 21, 1978

Filed:

Nov 22, 1976

Appl. No.:

5/744443

Inventors:

Hollis D. Sisk - Chesterfield MO

International Classification:

B21D 4102

US Classification:

72393

Abstract:

This invention describes a relatively undersized radially expandible sleeve member which can be easily inserted through a bore formed in a stator core. A relatively oversized plug member is then forced through the sleeve thus radially expanding the sleeve and urging the sleeve radially outwardly into engagement with the bore.

US Patent:

45544751, Nov 19, 1985

Filed:

Jun 5, 1984

Appl. No.:

6/617240

Inventors:

Hollis D. Sisk - Chesterfield MO

Assignee:

Century Electric, Inc. - St. Louis MO

International Classification:

H02K 132

US Classification:

310208

Abstract:

A main field coil for use in a dynamoelectric machine has a support having a predetermined geometry and a solid strand electrical wire with a circular cross section wound about the support. Coilhead (end turn) air vents of predetermined width are interspaced in the wound electrical wire. A structurally rigid removable pin has a grooved portion for receiving the wire and holding it as the air vents are formed, the pin being located at least partially in the air vents. The removable pin is removed from the air vents after the electrical wire is wound about the support.

US Patent:

39320626, Jan 13, 1976

Filed:

Jan 3, 1975

Appl. No.:

5/538304

Inventors:

Hollis D. Sisk - Chesterfield MO

Assignee:

Wagner Electric Corporation - Parsippany NJ

International Classification:

F04D 2928

US Classification:

416230

Abstract:

An improved blower blade for electric motors is disclosed. The blower blade comprises from about 50 to about 75% polypropylene, from about 5 to about 10% glass fibers and from about 15 to about 45% inert filler.