part 1 is the pivoting gate that is normally found on carabiners . it opens inward towards the open space labeled “ 5 ” ( the gate can be seen in the open position in fig1 ). the pivoting gate follows similar traditional carabiner designs in that it cannot be opened outward . this forms a locking mechanism . part 2 is the main carabiner frame . part 3 is the appendage that engages the underside of a bottle cap . part 4 is illustrating that the appendage can be grooved , textured , or smooth to allow for better engagement with the bottle cap . part 5 represents the internal open space of the carabiner . the arrow represents the upward force used to leverage the cap off of the bottle . the frame of the carabiner ( part 2 from fig2 ) is placed on top of the bottle cap . the appendage ( part 3 and 4 of fig2 ) is placed underneath the bottle cap . this creates a fulcrum that dislodges the bottle cap once upward force is applied . this bottle opener retains a traditional upward motion that is shared with many common bottle openers ( unlike other carabiner bottle openers in which downward force is applied to dislodge a bottle cap ). the overall structure of the invention is very reminiscent of currently available , mass produced carabiners . this invention mimics a traditional carabiner frame and pivoting gate . what we have added is the appendage that can aid in opening bottle caps . the added appendage is designed to be minimal and should not limit normal use of the carabiner very much . there are multiple designs possible with alternate dimensions of the appendage . the main goal of the appendage is to only be connected to the main frame of the carabiner in such a way as to allow for items to traverse the entire length of the carabiner frame ( example : keys on a key ring rotating around the complete carabiner frame ). please refer to fig2 . part 1 is a pivoting gate that can be pushed inward into the space labeled part 5 . part 1 is hinged to the main frame ( part 2 ) which allows for movement of part 1 while it remains attached to the main frame at a pivot point . there is a biasing means , such as a spring , that allows for part i to return to its closed position once inward directed force is removed from part 1 . the space between part 2 and 3 & amp ; 4 is the open area where a bottle cap would engage the bottle opener . the operator will tilt the carabiner in such a way that the angle in which the carabiner approaches the bottle will allow for the frame of the carabiner to rest on top of the bottle cap while allowing for the appendage to be placed underneath the bottle cap . once the operator has ensured that the frame is resting on top of the bottle cap and the appendage is engaging the bottom of the bottle cap , the operator will apply upward force to the carabiner frame . this allows the frame of the carabiner that is on top of the bottle cap to act as a fulcrum . the appendage will transfer the upward force to the cap , dislodging the cap from the bottle . please reference fig3 and 4 for a graphical representation of how the carabiner will engage the bottle cap . in addition , our invention can operate as a traditional carabiner . it can be hooked on to things such as a belt loop or purse and rotate freely similar to a traditional carabiner . alternatively , things may be clipped into the carabiner such as keys on a ring , reusable water bottles , key chains , etc . some devices alter the interior angles of the carabiner or have the bottle opener on the outside of the frame . this causes the frame to have an unfamiliar shape and unsmooth edges along the external border . other designs have the bottle opener on the inside area of the carabiner , but these designs segment the inside space of the carabiner , creating multiple , non - continuous spaces . these designs do not allow keys or other items to traverse the entire frame of the carabiner . traditional carabiners allow items to traverse the entire frame of the carabiner . similarly , traditional carabiners can be rotated around a belt loop without issues while items such as key rings are attached to the carabiner . our design can also accomplish this . we believe these previous designs decrease the functionality and feel of the carabiner . a person would make this very similarly to how current mass produced carabiners are made . it could be made using common methods such as mold casting or machining tools to create the different parts . once the pieces are created , they could be combined the same way traditional carabiners are made . a person could also create the appendage and carabiner frame separately . the separate elements could then be brought together and connected via a screw , locking mechanism , adhesive material , or other means . finally , the invention could be made by creating an “ appendage add - on ” that could be attached to already existing carabiners , adding a bottle opening feature to a traditionally produced carabiner . the carabiner could be made of any type of material . for example , it could be made of something common like stainless steel or aluminum , or it could be something less common like carbon fiber or titanium . it need not be metallic . the shape of the appendage can also vary . it can have a different height , width , thickness , or shape than is pictured in the figures . the foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description . they are not intended to be exhaustive or to limit the invention to the precise forms disclosed , and obviously many modifications and variations are possible in light of the above teachings . it will be understood that the invention is intended to cover alternatives , modifications and equivalents . the embodiments were chosen and described in order to best explain the principles of the invention and its practical application , to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated . it is therefore to be understood that within the scope of the appended claims , the invention may be practiced otherwise than as specifically described herein .