Soil sampling device with latch assembly having a variable circumferential shape

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870754

Meyer, Robert D ^[1]

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1. 13501 Witcher NE., Albuquerque, NM 87112

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any possibility of jamming of the rod on a retraction stroke until such time as it is positively retained in the fully withdrawn position.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.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: Meyer, Robert D. (13501 Witcher NE., Albuquerque, NM 87112)
• Patent Number(s): US 5587540
• OSTI ID: 870754
• Country of Publication: United States
• Language: English

Related Subjects

soil
sampling
device
latch
assembly
variable
circumferential
shape
relates
improved
sampler
operated
orientation
design
features
positive
gripping
operating
rod
manner
reduce
loads
possibility
jamming
retraction
stroke
time
positively
retained
withdrawn
position
preferred
embodiment
pair
mating
cylindrical
pieces
held
spring
actuation
inner
angular
cut-out
provides
base
aligned
release
fixture
free
cone
latches
formed
support
housing
engage
soil sampling
latch assembly
sampling device
preferred embodiment
design features
operating rod
withdrawn position
inner rod
improved sample
/73/175/