David A Fletcher

Address:

202 Marigold Cir, Westland, MI 48185

VIN:

2B3KA53H17H602434

Make:

DODGE

Model:

CHARGER

Year:

2007

US Patent:

53911180, Feb 21, 1995

Filed:

May 24, 1994

Appl. No.:

8/248134

Inventors:

M. Michael Tsai - Rochester Hills MI
David E. Fletcher - Flint MI
Joseph W. Zamm - Rochester Hills MI

Assignee:

Dayco Products, Inc. - Dayton OH

International Classification:

F16H 708

US Classification:

474138

Abstract:

A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end sumtrace thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.

US Patent:

55710611, Nov 5, 1996

Filed:

Nov 1, 1995

Appl. No.:

8/551635

Inventors:

M. Michael Tsai - Rochester Hills MI
David E. Fletcher - Flint MI
Joseph W. Zamm - Rochester Hills MI

Assignee:

Dayco Products, Inc. - Dayton OH

International Classification:

F16H 712

US Classification:

474135

Abstract:

A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end surface thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.

US Patent:

54999502, Mar 19, 1996

Filed:

Feb 13, 1995

Appl. No.:

8/387521

Inventors:

M. Michael Tsai - Rochester Hills MI
David E. Fletcher - Flint MI
Joseph W. Zamm - Rochester Hills MI

Assignee:

Dayco Products, Inc. - Dayton OH

International Classification:

F16H 708

US Classification:

474138

Abstract:

A belt tensioner, an actuator therefor and methods of making the same are provided, the actuator of the tensioner having a rotatable shaft that is operatively interconnected to a spring and is provided with opposite ends one of which is operatively interconnected to a piston, the actuator having a casing provided with an internal recess therein that receives the other end of the shaft therein, the spring being adapted to rotate the shaft to extend the piston while the other end of the shaft rotates in the recess and bears against an end surface thereof, the other end of the shaft comprising a thrust washer assembled to the shaft to be carried thereby.

US Patent:

20220307637, Sep 29, 2022

Filed:

Jun 16, 2022

Appl. No.:

17/807156

Inventors:

- Roseville MI, US
Kevin W. Lucka - Southfield MI, US
David E. Fletcher - Davison MI, US
Matthew C. Gilmer - South Lyon MI, US

Assignee:

DAYCO IP HOLDINGS, LLC - Roseville MI

International Classification:

F16L 37/12
B60K 15/04
F02M 25/08
F15D 1/02

Abstract:

Female quick couplings have a housing defining an axial bore therethrough that has a frustum-shaped bore portion that defines a restriction orifice, a first slot transverse to the axial bore, an a first shoulder between the first slot and the restriction orifice, and a locking member slidingly received in the first slot. The frustum-shaped bore can have an upstream conical frustum and a downstream conical frustum mated at their respective smaller diameter. The upstream conical frustum has a largest diameter that is larger than a largest diameter of the downstream conical frustum. Engine systems incorporating the female quick coupling and female quick coupling kits are also disclosed.

US Patent:

20210102650, Apr 8, 2021

Filed:

Oct 8, 2020

Appl. No.:

17/065638

Inventors:

- Troy MI, US
Kevin W. Lucka - Southfield MI, US
David E. Fletcher - Davison MI, US
Matthew C. Gilmer - South Lyon MI, US

Assignee:

DAYCO IP HOLDINGS, LLC - Troy MI

International Classification:

F16L 37/12
F15D 1/02
F02M 25/08
B60K 15/04

Abstract:

Female quick couplings are disclosed that have a housing defining an axial bore having a first shoulder and a first slot transverse to the axial bore, a removable insert defining a restriction orifice seated against the first shoulder within the axial bore, and a locking member slidingly received in the first receptacle. The removable insert defines a restriction orifice having an upstream conical frustum and a downstream conical frustum mated at their respective smaller diameter. The upstream conical frustum has a largest diameter substantially similar to an internal diameter of the first sealing member and the downstream conical frustum has a largest diameter substantially similar to an internal diameter of the axial bore extending downstream of the first shoulder. The largest dimeter of the upstream conical frustum is larger than the largest diameter of the downstream conical frustum. Engine systems incorporating the female quick coupling are also disclosed.

US Patent:

20200224565, Jul 16, 2020

Filed:

Jan 10, 2020

Appl. No.:

16/740216

Inventors:

- Troy MI, US
Matthew C. GILMER - South Lyon MI, US
David E. FLETCHER - Davison MI, US
Mitchell EMOND - Shelby Township MI, US
David SNOW - Redford MI, US
Joseph Dennis - Farmington Hills MI, US

Assignee:

DAYCO IP HOLDINGS, LLC - Troy MI

International Classification:

F01M 13/02
F16K 15/04
F16K 15/06

Abstract:

Flow control devices herein have a housing defining a plurality of parallel conduits. The first conduit has a normally closed check valve defined to open under a first preselected pressure differential controlling flow through the first conduit in a first direction of flow. The second conduit has a normally neutral check valve defined to open under a second preselected pressure differential in a second direction of flow that is opposite the first direction of flow. The third conduit defines a restriction profile, i.e., has a restrictor, having a third preselected pressure differential. The flow control devices are included as part of an engine system, more specifically a crankcase ventilation breach detection system.

US Patent:

20180080567, Mar 22, 2018

Filed:

Sep 21, 2017

Appl. No.:

15/711108

Inventors:

Keith Hampton - Ann Arbor MI, US
David E. Fletcher - Flint MI, US
Brian M. Graichen - Leonard MI, US
James H. Miller - Ortonville MI, US

Assignee:

Dayco IP Holdings, LLC - Troy MI

International Classification:

F16K 3/02
F16K 27/04
B60T 13/72

Abstract:

Venturi devices are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section, having a suction port in fluid communication with the Venturi gap, a gate valve linearly translatable to open and close the Venturi gap, and an actuator connected to the gate valve to operatively move the gate valve between an open position and a closed position. The gate valve, in a longitudinal cross-section, is generally U-shaped, thereby having continuous, opposing sides that one each close the motive outlet and the discharge inlet and defining a void between the opposing sides that is in fluid communication with the suction port. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet.

US Patent:

20170254426, Sep 7, 2017

Filed:

Mar 3, 2017

Appl. No.:

15/448726

Inventors:

Keith Hampton - Ann Arbor MI, US
David E. Fletcher - Flint MI, US
Brian M. Graichen - Leonard MI, US
James H. Miller - Ortonville MI, US
Matthew C. Gilmer - Whitmore Lake MI, US
Andrew D. Niedert - Farmington Hills MI, US

Assignee:

Dayco IP Holdings, LLC - Troy MI

International Classification:

F16K 15/02

Abstract:

Fluidic diodes are disclosed that have a housing defining an inlet and an outlet and a divided fluid passageway therebetween defined by mirror image partitions generally tear-drop shaped spaced apart a first distance from one another by a constant width primary fluid pathway with the tip thereof pointed generally toward the outlet and spaced apart a second distance from an interior wall of the housing to define a constant width secondary fluid pathway. Fluid flow from the inlet to the outlet is through the primary fluid pathway with some additional flow through the secondary fluid pathways joining the primary fluid pathway proximate the outlet for flow together in the same direction, and fluid flow from the outlet to the inlet through the secondary fluid pathways exits the secondary fluid pathways into the primary fluid pathway, proximate the inlet, in a direction substantially opposite the flow in the primary fluid pathway.