Patents by Inventor W. Andrew Logan
W. Andrew Logan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11174903Abstract: Power transmission systems including clutch arrangement and control systems are adapted to be used in numerous different operational environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities, reduced vibration, greater durability and longer life. Control arrangements are provided to more effectively control and monitor clutch operation in ways that provide for greater system flexibility and drive options. Structures that minimize vibrations may be included in a clutch housing as well as in clutch and separator discs of a disc pack.Type: GrantFiled: May 19, 2020Date of Patent: November 16, 2021Assignee: LOGAN CLUTCH CORPORATIONInventors: Stefan Vinca, W. Andrew Logan
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Patent number: 11149800Abstract: A fluid actuated clutch (40) includes a disc pack (120) that includes friction discs (122) and separator discs (124) mounted on a hub (50). A cylinder (68) which includes a movable piston (72) is in connection with the hub. The introduction and release of fluid to a variable volume chamber (76) selectively applies force to the disc pack to engage the clutch and releases the force to disengage the clutch. The clutch includes internal bearings (90, 82). Grease or other lubricant material is injected into a radially extending lubricant passage (96). The lubricant is held in the area of the bearings and other moving parts by rigid annular grease shields (93, 79). Annular grease release gaps (61, 107) prevent over packing with lubricant while maintaining lubrication and facilitating cooling.Type: GrantFiled: October 2, 2019Date of Patent: October 19, 2021Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens
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Patent number: 10821827Abstract: A clutch conversion kit is usable to convert a truck or other machine from a lever actuated dry clutch to a fluid actuated clutch. The kit (49) includes a hub (50) which engages an input shaft (56) of the transmission (16). A fluid pressure actuated cylinder (68) is mountable on the hub and is operative to selectively axially compress friction discs (122) and separator discs (124) included in a disc pack (120). A flexible drive coupling (170) and drive ring adapter (146) are engageable with a drive ring (138) that is engageable with the friction discs. A pin (204) is positionable to hold the cylinder in a fixed rotational position while a shaft collar (202) and other components of the kit are used to assure proper positioning and operation of the components of the kit.Type: GrantFiled: March 19, 2019Date of Patent: November 3, 2020Assignee: LOGAN CLUTCH CORPORATIONInventors: Scott W. Stevens, W. Andrew Logan, Edward E. Gallucci, Daniel Vincent Pistilli
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Patent number: 10767708Abstract: Power transmission systems including clutch arrangement and control systems are adapted to be used in numerous different operational environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities as well as greater durability and longer life. Control arrangements are provided to more effectively control and monitor clutch operation in ways that provide for greater system flexibility and drive options.Type: GrantFiled: October 1, 2018Date of Patent: September 8, 2020Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens, Robert P McClain, Stefan Vinca, Michael S. Vining
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Patent number: 10190644Abstract: Power transmission systems including clutch arrangements and systems are adapted to be used in marine and other environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities as well as greater durability and longer life. Slipping clutch arrangements may effectively vary the output speed of a clutch arrangement from the speed of the engine or other driver as desired for the particular application. Various clutch arrangements also provide for greater flexibility and drive options, lighter weight, and diverse types of capabilities.Type: GrantFiled: February 6, 2017Date of Patent: January 29, 2019Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens, Michael S. Vining, Robert S. Tekesky, Stefan Vinca
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Patent number: 10132366Abstract: Power transmission systems including clutch arrangements and systems are adapted to be used in marine and other environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities as well as greater durability and longer life. Slipping clutch arrangements may effectively vary the output speed of a clutch arrangement from the speed of the engine or other driver as desired for the particular application. Various clutch arrangements also provide for greater flexibility and drive options, lighter weight, and diverse types of capabilities.Type: GrantFiled: June 5, 2015Date of Patent: November 20, 2018Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens, Michael S. Vining, Robert S. Tekesky, Stefan Vinca
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Patent number: 9841067Abstract: Power transmission systems including clutch arrangements and systems are adapted to be used in marine and other environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities as well as greater durability and longer life. Slipping clutch arrangements may effectively vary the output speed of a clutch arrangement from the speed of the engine or other driver as desired for the particular application. Various clutch arrangements also provide for greater flexibility and drive options, lighter weight, and diverse types of capabilities.Type: GrantFiled: June 5, 2015Date of Patent: December 12, 2017Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens, Michael S. Vining, Robert S. Tekesky, Stefan Vinca
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Patent number: 9732807Abstract: Power transmission systems including clutch arrangements and systems are adapted to be used in marine and other environments. Such power transmission systems may include clutch arrangements that provide more effective power transmission capabilities as well as greater durability and longer life. Slipping clutch arrangements may effectively vary the output speed of a clutch arrangement from the speed of the engine or other driver as desired for the particular application. Various clutch arrangements also provide for greater flexibility and drive options, lighter weight, and diverse types of capabilities.Type: GrantFiled: June 5, 2015Date of Patent: August 15, 2017Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Scott W. Stevens, Michael S. Vining, Robert S. Tekesky, Stefan Vinca
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Patent number: 9416827Abstract: A clutch assembly includes a fluid-actuated piston that allows clutch usage in both high pressure and low pressure applications. The configuration of the clutch assembly is usable with both hydraulic and pneumatic pressure actuation. Seal configurations create differently sized internal piston surface areas against which inlet pressure applied at hydraulic or pneumatic fluid inlet ports act to move the piston. The utilization of differently sized piston surface areas allows the piston to apply essentially the same clutch engaging compression force in both high pressure hydraulic actuation and lower pressure pneumatic actuation applications.Type: GrantFiled: August 11, 2015Date of Patent: August 16, 2016Assignee: LOGAN CLUTCH CORPORATIONInventors: W. Andrew Logan, Michael S. Vining, Robert S. Tekesky, Robert M. Kalinsky