Gregory R May

US Patent:

7691034, Apr 6, 2010

Filed:

Mar 2, 2005

Appl. No.:

11/070748

Inventors:

Gregory B. May - Seattle WA, US
James S. Birrell - Seattle WA, US
Peter J. Arnold - Snohomish WA, US
Thomas H. Moran - Madison WI, US
Phillip S. Lamb - Point Loma CA, US

Assignee:

Precor Incorporated - Woodinville WA

International Classification:

A63B 22/06
A63B 22/12

US Classification:

482 52, 482 62

Abstract:

An elliptical exercise device includes a frame having a first pivot axis and a longitudinal axis, at least one foot link and at least one swing arm. The foot link is coupled to the frame and is constrained to move in an orbital path approximately parallel to the longitudinal axis. The swing arm is also coupled to the frame and has a reciprocating movement whereby a natural “stride” movement of the arm of a user is replicated. The swing arm operates independently from the foot link. The natural “stride” movement of the arm of the user grasping the arm link follows a generally concave motion relative to the ground. The length of the movement of the arm of the user is defined by the user. A different resistive load can be applied on the arm apparatus than on the foot links.

US Patent:

7704192, Apr 27, 2010

Filed:

Feb 17, 2005

Appl. No.:

11/060123

Inventors:

David E. Dyer - Renton WA, US
Franklin C. Marti - Clinton WA, US
Jonathan M. Stewart - Seattle WA, US
Gregory B. May - Seattle WA, US
David L. Albert - Woodinville WA, US

Assignee:

Precor Incorporated - Woodinville WA

International Classification:

A63B 22/06
A63B 22/04

US Classification:

482 52, 482 57

Abstract:

An exercise device is provided including a foot link having a rearward end and a forward end. An adjustable stride mechanism is provided. The adjustable stride mechanism includes a primary gear and a secondary gear. The primary gear is sized larger relative to the secondary gear. A primary crank connects the primary gear and the secondary gear. A timing belt connects the primary gear to the secondary gear. The primary crank and the timing belt enable the secondary gear to rotate around the primary gear. A secondary crank is pivotally attached to the secondary gear and to a foot link. The secondary crank creates an ellipse-shaped path for the foot link as the secondary gear rotates around the primary gear. Thus, the foot link motion combines an at least a dual ellipse motion. An automatic adjusting mechanism can be provided to adjust the adjustable stride mechanism.

US Patent:

8419598, Apr 16, 2013

Filed:

Jan 30, 2006

Appl. No.:

11/342936

Inventors:

David E. Dyer - Renton WA, US
Gregory B. May - Seattle WA, US
Peter J. Arnold - Snohomish WA, US
Jonathan M. Stewart - Seattle WA, US
Robert Silbernagel - Sammamish WA, US

Assignee:

Precor Incorporated - Woodenville WA

International Classification:

A63B 22/00
A63B 22/12

US Classification:

482 70, 482 51

Abstract:

An elliptical exercise device including a frame having a pivot axis, a foot link, a coupling, a swing arm, an engagement mechanism, and a guide system. The foot link has rearward, forward and foot support portions. The foot support portion has a central location. The coupling couples the rearward portion to the pivot axis so that the rearward portion of each foot link travels in a closed path relative to the pivot axis. The engagement mechanism has a first portion coupled to the swing arm and a second portion coupled to the foot link at a location rearward of the central location. The guide system supports the forward portion of the foot link along a preselected reciprocating path of travel as the rearward portion of the foot link travels along its path of travel. The guide system is selectably positionable in a plurality of different positions.