Exercise devices – Sit up device
Reexamination Certificate
2005-05-10
2005-05-10
DeMille, Danton D. (Department: 3764)
Exercise devices
Sit up device
C482S142000, C482S148000, C482S144000, C482S145000, C005S038000, C005S507100, C005S08110C, C128S098100
Reexamination Certificate
active
06890289
ABSTRACT:
The device is designed to enable the user to perform both abdominal strengthening and back muscle strengthening exercises on the top of a conventional bed. A conventional bed is defined as one with a semi-rigid mattress and a rigid frame.The device attaches and detaches to the described bed easily and provides the means to strengthen both flexor and extensor muscles of the trunk with the dual advantages of maximum convenience and minimum cost.The device is a departure from the previous art in that it enables the user to strengthen the trunk muscles at home without the necessity of cumbersome and expensive equipment.
REFERENCES:
patent: 3826490 (1974-07-01), Mossman
patent: 4515361 (1985-05-01), Melillo et al.
patent: 4671257 (1987-06-01), Kaiser et al.
patent: 4780919 (1988-11-01), Harrison
patent: 4893812 (1990-01-01), Dawson et al.
patent: 4925184 (1990-05-01), McJunkin et al.
patent: 5106083 (1992-04-01), Hall
patent: 5205804 (1993-04-01), Hall
patent: 5417636 (1995-05-01), Havens
patent: 5539741 (1996-07-01), Barraclough et al.
patent: 5820532 (1998-10-01), Oliver
patent: 6282734 (2001-09-01), Holberg
patent: 6321398 (2001-11-01), Wang
patent: 20020133878 (2002-09-01), O'Connell
Amerson L.
DeMille Danton D.
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