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Title: Soil sampling device with latch assembly having a variable circumferential shape

Abstract

The invention relates to an improved sampler which can be operated in any orientation. The design features a positive gripping of the operating rod in a manner to reduce point loads so as to reduce any possibility of jamming of the rod on a retraction stroke until such time as it is positively retained in the fully withdrawn position. In the preferred embodiment, a pair of mating cylindrical latch pieces, held together by a circumferential spring, are used for positive actuation. The inner rod has an angular cut-out which provides the base for the latch when aligned with the latch. A release fixture can be used to free the latch from the cone rod after actuation. The latches are formed in such a manner as they may support themselves within the housing of the sampler until they engage the operating rod. 11 figs.

Inventors:
Issue Date:
Research Org.:
AT&T Corporation
OSTI Identifier:
415741
Patent Number(s):
5,587,540
Application Number:
PAN: 8-491,281
Assignee:
SNL; SCA: 540220; PA: EDB-97:016573; SN: 97001714592
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Dec 1996
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SAMPLERS; DESIGN; POLLUTANTS; SAMPLING; LAND POLLUTION

Citation Formats

Meyer, R D. Soil sampling device with latch assembly having a variable circumferential shape. United States: N. p., 1996. Web.
Meyer, R D. Soil sampling device with latch assembly having a variable circumferential shape. United States.
Meyer, R D. Tue . "Soil sampling device with latch assembly having a variable circumferential shape". United States.
@article{osti_415741,
title = {Soil sampling device with latch assembly having a variable circumferential shape},
author = {Meyer, R D},
abstractNote = {The invention relates to an improved sampler which can be operated in any orientation. The design features a positive gripping of the operating rod in a manner to reduce point loads so as to reduce any possibility of jamming of the rod on a retraction stroke until such time as it is positively retained in the fully withdrawn position. In the preferred embodiment, a pair of mating cylindrical latch pieces, held together by a circumferential spring, are used for positive actuation. The inner rod has an angular cut-out which provides the base for the latch when aligned with the latch. A release fixture can be used to free the latch from the cone rod after actuation. The latches are formed in such a manner as they may support themselves within the housing of the sampler until they engage the operating rod. 11 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {12}
}