Extensible boom with manual section stored in base

Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Tilts relative to base

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

212230, E04H 1234

Patent

active

045149399

ABSTRACT:
A multi-section telescopic boom is disclosed having a base section supported for pivotal movement, a manual section telescopically received in said base section, a mid section, and a tip section which sections are progressively lighter from the base section to the tip section when excluding the weight of head machinery connected to the tip section. The heavy manual section is stored in the base section when a load to be transferred between two locations can be reached with the mid and tip sections extended thereby substantially decreasing the turning moment about the pivot axis due to the weight of the boom sections resulting in an increased load carrying capacity of the boom. The boom is preferably supported by a pendant line operatively connected to the outer end of the tip and base sections and trained within the boom to aid a single hydraulic ram to extend and retract selected sections of the boom.

REFERENCES:
patent: 2999600 (1961-09-01), Gates
patent: 3368696 (1968-02-01), Johnston et al.
patent: 3371799 (1968-03-01), Brownell et al.
patent: 3386594 (1968-06-01), Grove
patent: 3398492 (1968-08-01), Nansel
patent: 3605358 (1971-09-01), Bentey
patent: 3624979 (1971-12-01), Przybylski
patent: 3770138 (1973-11-01), Chalupsky et al.
patent: 3795321 (1974-03-01), Johnston
patent: 3809249 (1974-05-01), Grove
patent: 3842985 (1974-10-01), Svede
patent: 3921819 (1975-11-01), Spain
patent: 4036372 (1977-07-01), Rao et al.
patent: 4132040 (1979-01-01), Grove
patent: 4156331 (1979-05-01), Lester et al.
patent: 4217987 (1980-08-01), Gattu et al.
patent: 4327533 (1982-05-01), Sterner
patent: 4352434 (1982-10-01), Poock

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Extensible boom with manual section stored in base does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extensible boom with manual section stored in base, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extensible boom with manual section stored in base will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1791984

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.