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any possibility of jamming of the rod on a retraction stroke until such time as it is positively retained in the fully withdrawn position.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
- OSTI Identifier:
- 415741
- Patent Number(s):
- 5587540
- 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any possibility of jamming of the rod on a retraction stroke until such time as it is positively retained in the fully withdrawn position.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}
}