Abstract

One jack stand includes a stand assembly having a base and a tubular receiving member extending upwardly therefrom. A latch extends from the tubular member. A support bar having upper and lower ends is telescopically housed in a cavity of the tubular member. First and second sides of the bar each have multiple embedded slots. A third side of the bar has multiple holes with angled surfaces such that positioning the latch in any of the holes restricts the bar from moving upwardly yet allows the bar to move downwardly. An automatic lifting device is at least partially inside the cavity and imparts an upward force upon the bar. A stopper selectively interacts with the stand assembly and the bar to restrict the bar from moving downwardly, yet allows the bar to move upwardly. The stopper passes at least partially inside two of the slots to interact with the bar.

IPC Classes  ?

• A47F 5/00 - Show stands, hangers, or shelves characterised by their constructional features
• E04G 25/00 - Shores or strutsChocks
• F16M 13/00 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles
• F16M 11/28 - Undercarriages for supports with one single telescoping pillar
• F16M 11/18 - Heads with mechanism for moving the apparatus relatively to the stand
• F16M 11/22 - Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
• B66F 3/25 - Constructional features
• F16M 11/00 - Stands or trestles as supports for apparatus or articles placed thereon
• B66F 3/24 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
• B66F 3/42 - Constructional features with self-contained pumps, e.g. actuated by hand
• B66F 1/00 - Devices, e.g. jacks, for lifting loads in predetermined steps
• B66F 1/04 - Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed
• B66F 3/00 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads
• B60S 9/02 - Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
• F16M 11/04 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand
• B66F 5/00 - Mobile jacks of the garage type mounted on wheels or rollers
• B66F 1/06 - Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being actuated mechanically
• B66F 1/08 - Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being operated by fluid pressure