Package making – Depositing articles and arranging material in preformed... – Successive deposits of articles
Reexamination Certificate
1999-03-05
2001-03-06
Vo, Peter (Department: 3721)
Package making
Depositing articles and arranging material in preformed...
Successive deposits of articles
C053S148000, C053S235000, C053S246000, C053S537000, C414S021000, C414S415000, C029S255000, C029S263000, C029S774000, C029S793000, C029S809000, C029S822000, C269S055000
Reexamination Certificate
active
06195960
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a device for putting pipes into a case and taking them out therefrom.
Pipes guided down into oil wells, such as drill pipes, drill collars and casings of offshore oil installations, can advantageously be transported in protecting cases.
However, the use of such cases involves extra work of putting pipes into cases and of taking them out therefrom.
SUMMARY OF THE INVENTION
The object of the invention is to provide a device adapted to be used for mechanizing and automatizing the work of taking pipes out of cases and putting pipes into cases.
The object is achieved by features as defined in the following description and claims.
The device of the invention comprises a case and an apparatus adapted to raise and lower a case containing pipes, as well as to turn the case around an axis parallel to the longitudinal direction of the case and of the pipes, and also devices for guiding pipes out from a case and into a case.
Pipes having a large diameter may require one case each, while pipes having a smaller diameter are stacked one above the other so that several parallel stacks are formed, each stack comprising at least one pipe in the width direction of the case. This is achieved by placing the pipes between supports projecting upwardly from the bottom of the case as a lateral row of fingers or fork tines, e.g. at the ends of the case.
The bottom of the case is provided with fasteners for supports in such a way that a number of supports and the spacing therebetween may be adjusted to the actual pipe diameter. In order to avoid that the outer pipe stacks overload the side walls of the case, supports may advantageously be disposed between the outer pipe stacks and the side walls of the case, or the side walls of the case may be strengthened.
Fasteners for supports may be disposed on a lateral rail at the bottom of the case. Further, the bottom of the case is provided with apertures in the form of lateral slots, preferably one slot at each end.
When a case is to be emptied and the pipes removed therefrom, it is turned laterally, about 85°, so that the bottom of the case takes an approximately vertical position, but also such that the pipes do not roll out of the case. Thus, the pipes lie in layers in slightly sloping planes, each layer of pipes resting on said supports.
By displacing one layer of pipes upwardly on a slightly inclined substratum, i.e. the supports, the pipes, one and one, being pushable out of the case, a first pushing device may be guided into the case through said apertures in the bottom of the case. For each pipe layer to be pushed out, the case is positioned vertically so that the tops of the supports on which the pipes rest, become aligned with a supporting plane, such as a table or a conveyor belt. For each pipe layer, the vertical position of the case is readjusted.
On the other hand, pipes may be placed in a case by pushing the pipes laterally from a supporting plane and into a previously turned and vertically positioned case by means of a second pushing device. For each layer of pipes filled into the case, the vertical position of the case is readjusted.
REFERENCES:
patent: 3780883 (1973-12-01), Brown
patent: 3916500 (1975-11-01), Brown
patent: 4344523 (1982-08-01), May et al.
patent: 1207716 (1960-02-01), None
patent: 2387179 (1978-11-01), None
Andrus Sceales Starke & Sawall LLP
Desai Hemant M
Hitec ASA
Vo Peter
LandOfFree
Device for packaging pipes into a case and taking them out... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for packaging pipes into a case and taking them out..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for packaging pipes into a case and taking them out... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2471641