Creeper having lever arms providing variable mechanical advantag

Details Creeper having lever arms providing variable mechanical advantag Creeper having lever arms providing variable mechanical advantag

1996-04-03

1999-01-12

Johnson, Brian L.

Land vehicles

Wheeled

With worker's support or shade

280 797, 2973611, 297362, 74105, 74517, B25H 500, B62B 1100

Patent

active

058576835

ABSTRACT:
A creeper having a base and an inclinable back portion and an apparatus for inclining the back, the apparatus including lever arms, pull bars, a sliding member, rocker arms and a sprocket wheel about which a length of chain attached the lever arm rolls. A point of target contact between the chain and sprocket wheel moves along the length of the lever arm resulting in a variable mechanical advantage for a force applied to the lever arm.

REFERENCES:
patent: 1773597 (1930-08-01), Myerson
patent: 2051563 (1936-08-01), Mance
patent: 2054598 (1936-09-01), Goldenberg
patent: 2430662 (1947-11-01), Barton
patent: 2520047 (1950-08-01), Moody et al.
patent: 2564323 (1951-08-01), Brown
patent: 2652576 (1953-09-01), Clark
patent: 2689744 (1954-09-01), Mullin
patent: 2692636 (1954-10-01), Morrison
patent: 2703717 (1955-03-01), Miller
patent: 2780472 (1957-02-01), Weldon, Sr.
patent: 2843392 (1958-07-01), Simpkins
patent: 2861279 (1958-11-01), Myers
patent: 4705318 (1987-11-01), Yamada et al.
patent: 4895380 (1990-01-01), Brooks et al.
patent: 4957302 (1990-09-01), Maxwell
patent: 5035378 (1991-07-01), Spanovich
patent: 5086908 (1992-02-01), Gladish et al.
patent: 5451068 (1995-09-01), Shockley
patent: 5577744 (1996-11-01), Parks

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