Abstract: A portable air pump includes an inflation assembly, a head seat pivotally connected to the inflation assembly, a pressure gauge disposed in the head seat, a connection assembly pivotally connected to the inflation assembly, and an axial member. The inflation assembly includes a cylinder and a piston rod moveable relative to the cylinder to compress the air inside the cylinder. One end of the head seat is provided with the containing groove, and another end of the head seat is provided with a pedal portion. The connection assembly is adapted to connect with an air-inflatable object. The axial member is mounted through the inflation assembly and the head seat and is connected to the connection assembly. The axial member is provided with an airflow channel communicating with the cylinder, the containing groove, and the connection assembly.

Abstract: A portable air pump includes an inflation assembly, a head seat pivotally connected to the inflation assembly, a pressure gauge disposed in the head seat, a connection assembly pivotally connected to the inflation assembly, and an axial member. The inflation assembly includes a cylinder and a piston rod moveable relative to the cylinder to compress the air inside the cylinder. One end of the head seat is provided with the containing groove, and another end of the head seat is provided with a pedal portion. The connection assembly is adapted to connect with an air-inflatable object. The axial member is mounted through the inflation assembly and the head seat and is connected to the connection assembly. The axial member is provided with an airflow channel communicating with the cylinder, the containing groove, and the connection assembly.

Abstract: A portable air pump includes a head member located on one end of the pump body thereof and having a beveled face, a biasing member carrying a pressure gauge and having a beveled face pivotally connected to the beveled face of the head member in such a manner that the biasing member is biasable relative to the head member between a received position where the biasing member is kept in axial alignment with the portable air pump and an extended position where the pressure gauge is kept facing toward the handle of the portable air pump convenient for reading by the user and the biasing member is workable as a footplate for supporting the portable air pump on the floor for use as a floor type air pump.

Abstract: Manually operated air pump for multistage compression of ambient air comprises a multiple coaxial cylinder arrangement. The air inlet (3) is located in the pump handle (2), through which air passes to enter the pump. The pump handle further includes a dust and humidity filter (21) and a cavity (20) to be used as tool storage.

Abstract: A hand pump includes a piston slidably engaged in a housing and coupled to a piston rod, a handle having a compartment for receiving the piston rod at an inwardly folding position and having a guiding passage formed in one of the two end portions of the handle, a stud extended from a middle portion of the handle and having a slot communicating with the passage of the handle for allowing the piston rod to be rotated relative to handle between the inwardly folding position and an outwardly working position where the piston rod is engaged in the stud and perpendicular to the handle, and a control ferrule is attached onto the piston rod for anchoring the piston rod to the housing at the outwardly working position.

Abstract: A hand pump with a rotatable portion of the pump head. The needle or adapter for attaching the pump to an inflatable is associated with the rotatable portion of the pump head so that the needle may be positioned in a first position for use and a second position for storage. The needle is protected by a sleeve when in the second position.

Abstract: A pump includes a barrel slideably receiving an end of a piston rod. A valve seat is mounted to the barrel and has an air passageway. An adapter is mounted to the valve seat and includes a channel in communication with the air passageway. An end of a hose is connected to the channel. A coupling seat is mounted to the other end of the hose. A connecting block is mounted around the coupling seat. The connecting block is positionable to a side of the barrel. Two rotary inflation nozzles of different specifications are mounted to two ends of another hose. Each rotary inflation nozzle has a coupling thread for engaging with an inner thread of the coupling seat. When not in use, one of the rotary inflation nozzles is inserted into the barrel, and the other rotary inflation nozzle is engaged with an end portion on the piston rod.

Abstract: A hand pump with a rotatable portion of the pump head. The needle or adapter for attaching the pump to an inflatable is associated with the rotatable portion of the pump head so that the needle may be positioned in a first position for use and a second position for storage. The needle is protected by a sleeve when in the second position.

Abstract: An adjustable length bicycle mountable hand pump. The pump includes a barrel having an internal cylinder within which a piston is reciprocatingly moveable. A piston rod connects to a piston at a proximal end and to a handle at a distal end. The handle is selectively, longitudinally, adjustably lockable relative to the barrel. The end of the handle is contoured to mate with a bicycle frame member. A head having a contoured portion mates with an opposing spaced bicycle frame member.

Abstract: A pump includes a cylinder, a nozzle connected to an end of the cylinder, a piston movable in the cylinder, a rod connected to the piston, a ring installed at another end of the cylinder, a positioning device connected to the rod and a handle. The handle includes a connective portion for engagement with the positioning device when the rod is exposed from the handle.

Abstract: A pump includes a cylinder, a handle, a piston rod connected with the handle at an upper end and connected with a piston at a lower end, a flexible tube communicated with the cylinder, a nozzle communicated with the flexible tube, a first holding element installed on the cylinder in order to hold the flexible tube and a second holding element installed on one of the handle in order to hold the flexible tube.

Abstract: A frame floor pump includes a cylinder having a first end and a second end opposite to the first end, an extendable pump unit having an outer pipe with a first end installed to a side of the second end of the cylinder and a second end, an inner hose disposed through the second end of the outer pipe and received in the outer pipe and a nozzle provided to couple to an end of the inner hose against the second end of the outer pipe; wherein the inner hose of the extendable pipe unit could extend to various lengths from the outer pipe of the extendable pipe unit while operating the frame floor pump; while the frame floor pump is collapsed and not used, the inner hose could be received in the outer pipe so as to be easy to stow.

Abstract: A bicycle pump includes a cylindrical body in which a rod disposes. The rod is moveable inside the cylindrical body. A clip is attached to the outer peripheral surface of the cylindrical body. The clip includes a first clipping portion provided to allow insertion of the cylindrical body. The clip also has a second clipping portion defined on the periphery of the first clipping portion. A head is connected to the rod. The head also includes a hooking element thereon. A handle is pivotally connected to the head. A base is attached to the cylindrical body and includes a footstand on which the user can step to anchor the bicycle pump. The base also includes a hose. The hose has a length that is about twice as long as the cylindrical body. The hose is adapted be hanged by the hooking element and receivable by the second clipping portion.

Abstract: An air pump has a cylinder, a shaft to be manipulative for inflation, a hose connected to the cylinder, a nozzle connected to an end of the hose and a handle pivoted on an end of the shaft. The handle is manipulative to be moved between an expanded position and a collapsed position. The handle is provided with a receiving portion to receive a portion of the shaft therein while the handle is moved to the collapsed position and an engaging portion to be engaged with the nozzle. The cylinder has a channel to receive the hose therein.

Abstract: A pump includes a cylinder, a tube, a hollow piston, a nozzle, a hollow handle and an elastic element. The tube is partially and movably inserted in the cylinder. The hollow piston is in fluid communication with the tube and movably received in the cylinder for pumping. The nozzle is in fluid communication with the tube, and includes an end face in compliance with a first external structure. The hollow handle is mounted on the cylinder between a first mode preventing their relative movement and a second mode allowing their relative movement. The hollow handle includes an open end through which the tube is inserted and a closed end with an internal face and an external face in compliance with a second external structure. The elastic element is compressed between an end of the cylinder and the closed end of the hollow handle.

Abstract: A tire pump includes a reciprocal member having a first end and a second end, and a handle having a first end and a second end. The first end of the handle is mounted on the second end of the reciprocal member. The handle includes a switch member mounted on the first end thereof. The switch member may be operated by a user's one hand only so that the switch member may be moved between a first position where the second end of the reciprocal member is fixed on the first end of the handle, and a second position where the second end of the reciprocal member may be retracted into the first end of the handle.

Abstract: A hand pump includes a cylinder defining a chamber therein. A reciprocating member has a first end slidably received in the chamber of the cylinder and a second end extended beyond the first end of the cylinder. A head is mounted to the second end of the cylinder and includes an engaging portion for engaging with a valve of an object to be inflated. A handle is attached to the second end of the reciprocating member rod and includes a first arcuate recess for engaging with a seat tube of a bicycle. An attaching member is mounted to the head and includes a second arcuate recess for engaging with a head tube of the bicycle. The attaching member and the head are movable relative to each other along a longitudinal direction of the cylinder.

Abstract: A high-volume low pressure hand operated air pump comprised of a tube body with a plunger shaft inserted into one end thereof and a check valve at the other end thereof with a floating seal secured to the internal end of the plunger shaft comprised of a captured double sided annular disk having a closed cell foam plastic seal on one side thereof and a plastic stiffener of the same plastic material integrated thereto for supporting the foam sealing side thereof

Abstract: A hand pump includes a cylinder, a head attached to an end of the cylinder, and a reciprocating member having an end slidably received in the cylinder. A retaining member is securely attached to the other end of the reciprocating member to move therewith and includes a supporting face. A handle is pivotally mounted to the retaining member and movable between a storage position and an operative position for inflation. When moving the handle from the storage position to the operative position, the handle is pivoted relative to the retaining member through an angle not less than 180 degrees and then supported by the supporting face of the retaining member.

Abstract: A hand pump has a tubular pump housing with a longitudinal axis. A piston with a peripheral seal reciprocates along the axis to compress air against a sealed end of the housing. A tubular plunger nested in the housing connects to the piston to reciprocate the piston and compress the air. A flexible hose is placed in fluid communication with the compressed air. The hose is coiled to fit entirely within the tubular plunger during storage. A removable handle is inserted through a distal end of the plunger to make it easier to reciprocate the plunger. The handle, tire repair tools and materials, and other items can be placed inside the plunger for storage, and enclosed by placing an end cap on the pump housing.

Abstract: A bicycle tire pump includes a cylinder having two passages defined therethrough which are separated by a board, two openings respectively defined in a top of the cylinder and communicating with the two passages into which two pistons are respectively and movably received. A head is mounted to the top of the cylinder and has two ways defined therein which respectively communicate with the two passages in the cylinder and an outlet of the head. A bolt extends through one of the two passages and is threadedly connected to the head. The bolt has a longitudinal passage defined therethrough which communicates with one of the two ways.