Mineral oils: processes and products – Refining – With reagent feed control
Reexamination Certificate
2006-07-25
2006-07-25
Cuff, Michael (Department: 3627)
Mineral oils: processes and products
Refining
With reagent feed control
C280S511000
Reexamination Certificate
active
07081197
ABSTRACT:
There is provided step apparatus comprising a mounting plate (60) colocated with a pintle hook assembly (61) of a vehicle. The mounting plate (60) has an upper extension (65) having formed thereon a pair of spaced lugs (66) adapted to mount a step assembly (67) comprising a moulded step member (70) secured to a step member support (72) having a pair of spaced pivot lugs (73). The step assembly is pivotally mounted to the spaced lugs (66) by pivot pin (74). The spaced lugs (66) are configured having an upper bearing surface (75) whereby in use the underside of the step member support (72) may bear thereon to take at least part of the step loads. The dimensions and configuration of the spaced lugs (66), mounting plate (60) and step member support (72) are selected whereby the raising limit of the step assembly (67) is defined by the bearing of the rear edge of the step member support (72) on the upper edge of the upper extension (65).
REFERENCES:
patent: 3394947 (1968-07-01), Strube
patent: 3507515 (1970-04-01), Brammer
patent: 3580613 (1971-05-01), Northrop
patent: 3716254 (1973-02-01), Tarvin
patent: 4844498 (1989-07-01), Kerins et al.
patent: 4846487 (1989-07-01), Criley
patent: D315134 (1991-03-01), Springer
patent: 5332250 (1994-07-01), Thorwall et al.
patent: D370452 (1996-06-01), Beasley
patent: 5584495 (1996-12-01), Mason
patent: 5829774 (1998-11-01), Klemp
patent: 5839744 (1998-11-01), Marks
patent: 2242659 (1991-10-01), None
Cuff Michael
Shoemaker and Mattare
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