Petzl Am'D Ball Lock (plastic sleeve v2b gold)

Petzl
Am'D Ball Lock (plastic sleeve v2b gold)

Name:Petzl Am'D (plastic sleeve v2b gold)
Sub Item:Ball Lock
Category:triple-action twist lock
Locking Type:full-auto
Locks:double
Unlock Style:press-and-twist
Sleeve Rotation:45° (unlocked) | 45° (maximum)
Shape:asymmetric D
Material:aluminum
Profile:flat
Nose:keylock
Nose Guard:none
Rivets:domed
Gate Shield:relieved: blocked
Weight:74.2 g
Dimensions:Length: 110.80 mm
Width: 63.62 mm
Depth (basket end): 10.18 mm
Gate Opening: 23.84 mm
Strength Ratings:Major Axis: 28 kN | Minor Axis: 7 kN | Gate Open: 8 kN
Other Markings:Forged: PETZL Am'D Pat. | (ratings) (ce-logo) 0197
Injection Molded: (Petzl oval logo) (fingerprint texture) BALL LOCK PATENTED Ⓚ (fingerprint texture)
Stamped: 05321A
Hand Engraved (electropencil?): BK
Batch Marking Location:spine-exterior-left
Collection Criteria:★ Mechanically Interesting
Summary:plastic sleeve button-lock
Description & Commentary:

Introduced in 1997, the Ball lock was Petzl's first triple action auto locking mechanism (predating the Triact), which operates quickly with a button press and 45 degree twist. The plastic sleeve has finger grooves with a molded fingerprint texture. The button protrudes significantly more than the metal sleeved version and I find it more difficult to depress fully.

Petzl's similar manual locking Spinball was introduced later and uses a 135 deg twist.

Differences from : This version lacks the Ball Lock and UIAA k-circle #1939 has forged onto the spine. It has them on the plastic sleeve instead. Batch marking is on the spine-exterior (read correctly when the gate faces left) rather than spine-left. These differences suggest later production than 1940.

This is the gold version, which I believe was a color exclusive to Sherrill Tree. I prefer to equip new tree climbers with carabiners of different colors in order to help them distinguish between systems and to help me verbally coach them through an issue.

Relevant Patent:US5608953