DOUGLAS L SHEADEL
Broker in Graniteville, MA

License number
Massachusetts 9538001
Issued Date
Aug 28, 2015
Expiration Date
Jan 23, 2018
Type
Salesperson
Address
Address
Graniteville, MA 01886

Professional information

Douglas Sheadel Photo 1

Exercise Device

US Patent:
6419611, Jul 16, 2002
Filed:
Dec 23, 1999
Appl. No.:
09/470846
Inventors:
James H. Levine - Westford MA
Douglas L. Sheadel - Westford MA
Peter A. Latham - Brookline MA
Assignee:
FitnessLab, LLC - WestFord MA
International Classification:
A63B 21008
US Classification:
482 53, 482 62, 482112, 482130
Abstract:
An exercise device having two chambers, underlying two elastic membrane portions, in a position to closely support above the ground, the left and right foot respectively, of a user. A support structure such as a housing for the first and second membrane portions permit raising and lowering, as by shifting body weight, of the left and right foot in a stair stepping action, preferably without raising each foot from contact with the membrane portions to elastically stretch the membrane portions in succession. A fluid underlies the first and second elastic membrane portions. The fluid preferably is displaced by the stretching of each membrane portion and in the preferred embodiments, it acts with the membrane portions to support the body of a user in use.


Douglas Sheadel Photo 2

Exercise Device

US Patent:
6045489, Apr 4, 2000
Filed:
Jul 21, 1998
Appl. No.:
9/119854
Inventors:
James H. Levine - Westford MA
Douglas L. Sheadel - Westford MA
Peter A. Latham - Brookline MA
Assignee:
PowerSource LLC - Westford MA
International Classification:
A63B 21008, A63B 2204, A63B 23035
US Classification:
482 53
Abstract:
An exercise device having two chambers, underlying two elastic membrane portions, in a position to closely support above the ground, the left and right foot respectively, of a user. A support structure such as a housing for the first and second membrane portions permit raising and lowering, as by shifting body weight, of the left and right foot in a stair stepping action, preferably without raising each foot from contact with the membrane portions to elastically stretch the membrane portions in succession. A fluid underlies the first and second elastic membrane portions. The fluid preferably is displaced by the stretching of each membrane portion and in the preferred embodiments, it acts with the membrane portions to support the body of a user in use.