edge latch core barrel - Di-Corp

MINING & DRILLING PRODUCTS
EDGE LATCH CORE BARREL
Stuck tubes and mislatches cause significant
downtime and can have a serious impact on
your budget — you can lock and release with
confidence using Di-Corp’s Edge Latch Core
Barrels.
latch
retraction
case
latch
retraction
pin
latch
latch spring
FEATURES & BENEFITS
1. Latching system
provides increased
leverage for occasions when tubes are difficult
to release
• improved latch design provides a
mechanical advantage during the
“unlatching” or “unlocking” of the inner
tube assembly
• latch window maximizes the efficiency in
which the latches are pulled inward
• pin transfers the pulling force of the latch
retraction case through to the latches
2. Integrated Latch Spring
• each latch moves independent from the
other for reliable, secure latching with both
tanged and non-tanged locking couplings
3. Shielded Bearing
• prevents contamination for prolonged life of
bearing
• increased impact resistance
4. Inner Tube Cap Thread Protector
• protects the thread from damage when
head is shipped or when not in use
5. Latch Locking Pin
• prevents latches from releasing prematurely
on pump-in applications (see reverse)
6. Designed to be interchangeable with other
popular industry core barrel latching systems
1.800.661.2792 | www.di-corp.com | info@di-corp.com
Di-Corp is a registered trade name of Diversity Technologies Corp.
EDGE LATCH CORE BARREL
LATCH LOCKING FOR PUMP-IN CORE BARRELS
latch locking
spring
latch locking pin
Mechanism
“A”
Di-Corp has developed a two-part mechanism that
locks the latches open during uphole drilling.
• designed to fit inside the existing space of most
standard heads
• consists of the following components:
a. latch locking pin
b. latch locking spring
c. latch case spring sleeve
d. latch case spring
e. spring cavity bushing
f. spring seat
c
a
b
latch spring
latch
d
f
e
Mechanism “A”
spring
seat
When the latches open inside the adaptor coupling
the locking pin slides into the notch on top of each
latch. The force of the locking spring keeps the
locking pin in place until the latch retraction case is
actuated during core retrieval.
latch case spring
Mechanism “B”
spring cavity bushing
This applies a designed spring force to the latch
retraction case once the latches are opened
ensuring that:
latch case
spring sleeve
Mechanism “B”
• Mechanism “A” remains fully engaged during
drilling
• latches are not prematurely retracted, resulting
in the inner tube assembly unlatching
1.800.661.2792 | www.di-corp.com | info@di-corp.com
Di-Corp is a registered trade name of Diversity Technologies Corp.