PATENT CLAIM ANALYSIS

Application Number: 16089200
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["166", "075150"]

Abstract:
A tool for launching wiper plugs into a casing string in a gas or oil well during cementing operations employs a collet-like mechanism carrying radially-movable jaws arranged to retain a plug in a fluid flow path when the tool is in a closed position, and to release the plug into the fluid flow path when the tool is in an open position. Selection of the desired operational position of the plug launcher (i.e., open or closed) is effected by actuation of an axially-movable sliding sleeve. Alternative means for actuating the sliding sleeve include rotary actuation about the tool's longitudinal axis, rotary actuation about a radial axis generally normal to the longitudinal axis, rotary actuation about a generally tangent axis, and pneumatic or hydraulic actuation. The tool may be adapted to carry multiple wiper plugs for sequential launching into a casing string.

Claim (Index 1):
A plug-launching tool comprising:\n (a) a generally axisymmetric housing having a housing bore; (b) a sliding sleeve sealingly and coaxially movable within the housing bore; (c) actuation means, for axially moving the sliding sleeve between a closed position and an open position; (d) a plug receiver bore carried by either the housing or the sliding sleeve, wherein the plug receiver bore:\n (d.1) is in upstream fluid communication with the housing bore; \n (d.2) includes a retained plug interval for receiving and releasably retaining a selected plug; and \n (d.3) is sized to allow passage of the plug downstream of the retained plug interval; \n (e) a collet assembly coaxially disposed within the housing bore and carried by either the sliding sleeve or the housing, wherein:\n (e.1) the collet assembly includes a collet body having a generally cylindrical bore configured to accommodate passage of the plug; and \n (e.2) the collet body carries one or more collet jaws linked to the collet body so as to be movable between a radially-inward closed position and a radially-outward open position, wherein:\n the collet jaws, in their closed position, at least partially occlude the receiver bore, so as to grip or retain the plug; or \n the one or more collet jaws are provided with upstream-facing land surfaces projecting radially inward so as to retain the plug when the collet jaws are in the closed position; and \n \n (f) linkage means, for linking axial movement of the sliding sleeve to radial movement of the collet jaws, such that the collet jaws will be urged toward their closed and open positions when the sliding sleeve is moved toward its closed and open positions, respectively.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 97.0
- Lexical Diversity: 1.96154
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14083021', '12469370', '10867960', '12505952', '15805721']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7929085788194197
- 35 USC 102 Novelty (BERT): 0.4778260511210436
- Combined Prediction Score: 0.7614003260495821
- Mean Citation Score: 220.428328
- Max Citation Score: 229.80963
- Similarity Product: 172.71240441491958

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test