Duncan A Keller, Age 7618120 Santa Ana Rd, Los Gatos, CA 95033

Duncan Keller Phones & Addresses

18120 Santa Ana Rd, Los Gatos, CA 95033 (408) 353-4560

San Jose, CA

Santa Clara, CA

18120 Santa Ana Rd, Los Gatos, CA 95033

Work

Company: Yankee engineuity inc Address: 214 Cristich Ln # 103, Campbell, CA 95008 Phones: (408) 558-9706 Position: Owner Industries: Repair Shops and Related Services

Education

Degree: High school graduate or higher

Mentions for Duncan A Keller

Duncan Keller resumes & CV records

Resumes

Duncan Keller Photo 16

Duncan Keller

Duncan Keller Photo 17

Duncan Keller

Publications & IP owners

Us Patents

Anti-Back-Streaming Carburetor Valve

US Patent:
7478800, Jan 20, 2009
Filed:
Mar 3, 2006
Appl. No.:
11/368286
Inventors:
Duncan Adam Keller - Los Gatos CA, US
Arthur Langlie - San Jose CA, US
Assignee:
Central Coast Patent Agency, Inc. - Watsonville CA
International Classification:
F02M 17/38
US Classification:
261 38, 25131501, 261 641, 261DIG 74, 261DIG 83
Abstract:
A valve for sealing a carburetor inlet of a first diameter, includes a valve element having a curved surface for sealing the inlet opening, and a through hole of substantially the first diameter extending through the valve element, and a translation mechanism for rotating the valve element between a first position wherein the curved surface completely seals the opening and a second position wherein the through hole aligns with the inlet allowing a free flow into the carburetor.

Motorcycle Engine Mounting System

US Patent:
2003010, Jun 12, 2003
Filed:
Dec 7, 2001
Appl. No.:
10/013208
Inventors:
Duncan Keller - Los Gatos CA, US
Gregory Spak - San Jose CA, US
International Classification:
B62M007/02
US Classification:
180/228000, 370/336000
Abstract:
A vibration-isolation system for assembly of a motorcycle frame with an engine/transmission unit has a first pivotal mount at a rear portion of the frame and engine/transmission unit, the first mount comprising all rigid bearing components mounted to solid elements of both the frame and the engine/transmission unit, the first mount thereby allowing the engine/transmission unit to rotate around the first mount in substantially a vertical plane of the frame, but allowing no pivotal movement in any other plane or any translation movement in any direction relative to the frame; and a second mount at a front portion of the frame and engine/transmission unit, the second mount incorporating one or more elastomeric elements between a solid interface to the frame and a solid interface to the engine/transmission unit, thereby allowing substantially vertical translation of the engine transmission unit relative to the frame at the second mount, the translation of an amplitude limited by the elastomeric elements, and thereby limiting the rotation of the engine/transmission unit around the first pivotal mount.

Motorcycle Engine Mounting System

US Patent:
2004000, Jan 15, 2004
Filed:
Jun 30, 2003
Appl. No.:
10/611466
Inventors:
Duncan Keller - Los Gatos CA, US
Gregory Spak - San Jose CA, US
International Classification:
B62K011/00
US Classification:
180/228000
Abstract:
A vibration-isolation system for assembly of a motorcycle frame with an engine/transmission unit has a first pivotal mount at a rear portion of the frame and engine/transmission unit, the first mount comprising all rigid bearing components mounted to solid elements of both the frame and the engine/transmission unit, the first mount thereby allowing the engine/transmission unit to rotate around the first mount in substantially a vertical plane of the frame, but allowing no pivotal movement in any other plane or any translation movement in any direction relative to the frame; and a second mount at a front portion of the frame and engine/transmission unit, the second mount incorporating one or more elastomeric elements between a solid interface to the frame and a solid interface to the engine/transmission unit, thereby allowing substantially vertical translation of the engine transmission unit relative to the frame at the second mount, the translation of an amplitude limited by the elastomeric elements, and thereby limiting the rotation of the engine/transmission unit around the first pivotal mount.

Anti-Back-Streaming Carburetor Valve

US Patent:
2010001, Jan 28, 2010
Filed:
Jan 16, 2009
Appl. No.:
12/355122
Inventors:
Duncan Adam Keller - Los Gatos CA, US
Arthur Langlie - San Jose CA, US
Assignee:
CENTRAL COAST PATENT AGENCY, INC. - Watsonville CA
International Classification:
F17D 1/00
F02M 1/04
US Classification:
137 1, 261 38
Abstract:
A valve for sealing a carburetor inlet of a first diameter, includes a valve element having a curved surface for sealing the inlet opening, and a through hole of substantially the first diameter extending through the valve element, and a translation mechanism for rotating the valve element between a first position wherein the curved surface completely seals the opening and a second position wherein the through hole aligns with the inlet allowing a free flow into the carburetor.

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