Mark James Mattson

US Patent:

6975496, Dec 13, 2005

Filed:

Mar 20, 2003

Appl. No.:

10/393417

Inventors:

Jonathan L. Jones - Carson City NV, US
Richard C. Dunning - Carson City NV, US
Mark J. Mattson - Carson City NV, US

Assignee:

PolyPhaser Corporation - Minden NV

International Classification:

H02H001/00

US Classification:

361118, 361119

Abstract:

A surge protection device is disclosed that includes a conductor for receiving an rf signal and a dc current, a first shield having a lumen configured to accommodate at least a portion of the conductor, and a second shield having a lumen configured to accommodate the first shield so that a portion of the first shield is positioned within the lumen of the second shield. The surge protection device further includes a dc blocking device, coupled to the conductor, for attenuating the dc current, a device, coupled to the conductor, for diverting the dc current to the second shield, and a dielectric disposed between the first shield and the second shield for preventing the dc current from traveling from the second shield to the first shield.

US Patent:

47875585, Nov 29, 1988

Filed:

Apr 20, 1987

Appl. No.:

7/041661

Inventors:

Timothy C. Sexton - Walnut CA
George H. Lockwood - Wilton Manors FL
David E. Robertson - Covina CA
Joseph D. Mason - Monteclair CA
Mark J. Mattson - San Dimas CA
Robert W. Patterson - LaVerne CA

Assignee:

Rain Bird Consumer Products Mfg. Corp. - Duarte CA

International Classification:

B05B 316
B05B 1510

US Classification:

239205

Abstract:

An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the preset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly. Positional adjustment of the stops is performed quickly and easily from the exterior of the sprinkler after which a vandal-resistant lock device can be installed to prevent inadvertent or unauthorized stop adjustment.

US Patent:

46259147, Dec 2, 1986

Filed:

May 16, 1985

Appl. No.:

6/735071

Inventors:

Timothy C. Sexton - Walnut CA
George H. Lockwood - Wilton Manors FL
David E. Robertson - Covina CA
Joseph D. Mason - Monteclair CA
Mark J. Mattson - San Dimas CA
Robert W. Patterson - LaVerne CA

Assignee:

Rain Bird Consumer Products Mfg. Corp. - Glendora CA

International Classification:

B05B 316
B05B 304

US Classification:

239206

Abstract:

An improved rotary drive sprinkler is provided for rotatably driving a pop-up spray head in a stepwise manner through a full-circle or reversibly within a selected part-circle path. The sprinkler includes a reversing trip mechanism having a pair of spaced-apart stops rotatable with the spray head and defining preset end limits of a part-circle path, wherein a stationary trip wire is engageable with the stops to switch an internal rotary drive assembly, such as a ball drive assembly, between forward- and reverse-drive operation. The trip wire flexes to accommodate forced spray head rotation to a maladjusted position beyond the end limits and, upon subsequent sprinkler operation, rides over ramped surfaces on the stops for automatic return to reversible operation between the reset end limits. Alternatively, the stops can be set in side-by-side relation with their ramped surfaces oriented for the trip wire to ride resiliently thereover without switching of the rotary drive assembly. Positional adjustment of the stops is performed quickly and easily from the exterior of the sprinkler after which a vandal-resistant lock device can be installed to prevent inadvertent or unauthorized stop adjustment.