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US 7,581,713 B1Granted
Jack and safety stand
OwnerFrancis D. Vossinventor
Life of this patent
Estimating the term…
Abstract
The various embodiments disclosed and pictured herein illustrate a safety stand and jack for safety and easily positioning the load engaging portion of the jack directly against the frame of a heavy truck. Certain embodiments of the safety stand and jack employ an elongated support saddle that fits between the truck frame and suspension spring and distribute the load over a larger area at the bottom of the safety stand or jack.
Claims20
A safety stand for supporting heavy vehicles suspended above a surface comprising:
- a. a platform carriage 13;
- b. a hollow vertically orientated stem base 10, wherein said stem base 10 has a first and second end, wherein said second end of said stem base 10 is at a higher elevation than said first end of said stem base 10, wherein said first end of said stem base 10 is attached to said carriage platform 13, and wherein said second end of said stem base forms an opening;
- c. a stem 3, said stem 3 comprising:
- i. an engagement member 24, wherein said engagement member 24 fits into and is slideable with respect to said stem base 10 through said second end of said stem base, and wherein said engagement member 24 is formed with a plurality of apertures 25 therethrough;
- ii. a support saddle 1 affixed to one end of said engagement member opposite said platform carriage 13;
- d. a pin 15, wherein said pin 15 is insertible in one of aperture of said plurality of apertures 25 in said engagement member 24, and wherein said pin 15 is engageable with said second end of stem base 10 when inserted in one of said apertures;
- and,
- e. a plurality of wheels, wherein said plurality of wheels are mounted to at least one plate, and wherein said plate is mounted to said platform carriage with a spring and a bolt so that said platform carriage engages said surface when a load is placed on said safety stand.
5 more elements
A jack for raising and supporting heavy vehicles suspended above a surface comprising:
- a. a platform carriage 13, wherein a plurality of wheels 16 are attached to said platform carriage 13;
- b. a hollow vertically orientated stem base 10, wherein said stem base has a first and second end, wherein said second end of said stem base 10 is at a higher elevation than said first end of said stem base 10, wherein said first end of said stem base 10 is attached to said carriage platform 13, and wherein said second end of said stem base forms an opening;
- c. a stem 3, said stem 3 comprising:
- i. an engagement member 24, wherein said engagement member 24 fits into and is slideable with respect to said stem base 10 through said second end of said stem base, and wherein said engagement member 24 is formed with a plurality of apertures 25 therethrough;
- ii. a support saddle 1 affixed to one end of said engagement member opposite said platform carriage 13;
- iii. a cylinder rod holder 8 affixed to said support saddle 1, wherein said cylinder rod holder 8 is fashioned to engage said cylinder second end 20b;
- d. a cylinder 20 having a cylinder first end 20a and a cylinder second end 20b, wherein said cylinder first end 20a is attached to said platform carriage 13, wherein said cylinder second end 20b is attached to said cylinder rod holder 8 of said stem 3, wherein said cylinder 20 extends from said platform carriage 13 in an axial direction substantially parallel to the longitudinal axes of both said engagement member 24 of said stem 3 and said stem base 10, and wherein the direction of actuation of said cylinder 20 is substantially perpendicular to said support saddle 1;
- and
- e. a pin 15, wherein said pin 15 is insertible in one aperture of said plurality of apertures 25 in said engagement member 24, and wherein said pin 15 is engageable with said second end of stem base 10 when inserted in one of said apertures.
6 more elements
Dependencies are inferred from the claim text.