Abstract: An extendable arm has a first arm portion, a second arm portion extendable and retractable relative to the first arm portion to extend and contract the arm, and a flexible elongated pulling element having opposite ends connected to the second arm portion and passing around a rotatable spool secured in position on the first arm portion. Rotation of the spool causes the second arm portion to extend or retract relative to the first arm portion.

Abstract: Dispensers for liquids are provided having structure for containing a pool of liquid in the dispenser, to a predetermined level. A discharge chamber contains air above the level of liquid and a discharge device extends upwardly at least partly through the discharge chamber from below the level of the pool and has an external outlet. The discharge device includes a foamer chamber having a wall defining very small holes located above the pool level, and pressure means is coupled to the discharge chamber and operable to increase the pressure in the discharge chamber so that a pressure applied on the pool level drives liquid into the discharge device. Simultaneously air is forced through the small holes in the foamer chamber to meet the liquid passing through the foamer chamber where progressive foaming takes place before the resulting foam is forced through a discharge outlet.

Abstract: The invention provides a dispenser for dispensing one or two liquids simultaneously. For two liquids the dispenser has a pair of inverted containers defining bottom openings with the containers arranged in side-by-side relationship. A base is sealingly attached to the containers and has two reservoirs and associated dispensing openings. The arrangement is such that liquid from the containers will pool in the reservoirs below the dispensing outlets creating a condition of equilibrium in the containers. When the user disturbs the equilibrium, liquids from both containers flow out through the respective dispensing outlets for mixing in use, and then after dispensing air, flows into the dispenser to replace dispensed liquid thereby allowing equilibrium to again be established.When the invention is used for dispensing a single liquid, one container contains liquid and the second container is squeezed to disturb the equilibrium and cause dispensing.

Abstract: A medication container has a tubular container body with an upper open end, a cap detachably securable to the upper end of the container body by clockwise rotation relative thereto and removable from the container body by counter clockwise rotation relative thereto, and a cap liner within the cap and having a peripheral portion engageable with the upper end of the container body to close the upper end. The cap liner having an upwardly extending wall and the cap having a downwardly extending wall adjacent the upwardly extending wall of the cap liner. The cap and the cap liner have inter-engaging mechanism provided on the downwardly extending wall of the cap and the upwardly extending wall of the cap liner to prevent rotational movement therebetween when the cap is rotated in one direction relative to the container body and permit relative movement therebetween when the cap is rotated in an opposite direction relative to the container body.

Abstract: A utility knife with a rotary blade magazine also has a safety catch carried by the blade transport mechanism. The safety catch has a manually engageable actuator moveable relative to the transport mechanism between operative and non-operative positions to prevent or permit respectively sliding movement of the transport mechanism in the housing. The knife further has an end cap removably and rotatably secured in the housing, and a rotatable and removable ratchet member adjacent a rear end of the magazine, the ratchet member being connected to the magazine whereby rotation of the ratchet member effects rotation of the magazine and having ratchet teeth engageable with ratchet recesses in the housing to enable the ratchet member to be clicked from one position to another. The end cap is connected to the ratchet member whereby rotation of the cap causes rotation of the ratchet member and subsequent rotation of the magazine.

Abstract: A flood or storm resistant barrier for a doorway or window opening. The barrier formed of a frame having two parts with one part in telescopic engagement with the other frame part. A manually operable jack in the form of four links pivotally connected to form a parallelogram linkage is inserted between the two frame parts. The jack being operable to move the frame parts relative to one another so as to vary the external dimension of the frame and thereby enable the frame to be secured in a doorway or window opening by expansion of the frame into engagement with opposed surfaces of the doorway or window opening. A waterproof barrier member is carried by the frame for blocking at least a portion of the doorway or window opening.

Abstract: A pressure relief or back pressure valve has a valve body with a tubular outlet member having an outlet surrounded by an end face and an annular inlet chamber surrounding the outlet member. The annular inlet chamber has an outer periphery defined by a wall member with an end face in a plane spaced away from a plane defined by the end face of the outlet member. A flexible diaphragm has an outer peripheral edge portion clamped between the end face of the wall member and a clamping member, the flexible diaphragm in an undeflected configuration having a central portion spaced from the end surface of the outlet member. A resilient force applying device is operable to apply a predetermined force to the diaphragm to cause the diaphragm to be deflected into engagement with the end face of the outlet member, and a release device is operable to remove the force from the diaphragm to permit the diaphragm to move away from the end face of the outlet member.

Abstract: An endotracheal tube support includes a mouthguard and a tube clip secured thereto. The mouthguard has a generally U-shape with a bottom wall and opposed side walls extending upwardly from opposite edges thereof to enable the mouthguard to be positioned over a patient's upper teeth or gum. The clip is of resilient material and has an elongated cylindrical shape with a longitudinally extending opening extending along the entire length thereof to enable an endotracheal tube to be snapped therethrough. The clip is secured beneath the mouthguard on one side thereof by a fastening device extending from the bottom wall of the mouthguard to a position on the clip substantially opposite the longitudinally extending opening therein.

Abstract: The invention provides a mixing impeller for full immersion in a liquid to mix the liquid. The impeller has a central, longitudinally-extending axis of rotation, and includes a unitary body having a circular area disposed radially about the axis of rotation. A plurality of similar coplanar radial extensions extend from the circular area and are spaced equally about the area defining similar radial discharge slots between adjacent pairs of the extensions. A plurality of blades are cantilevered from the extension and extend axially and outwardly from the extensions, such that the body expands generally conically from the circular area along the lengths of the blades.

Abstract: A catadioptric zoom lens assembly has a catoptric objective lens group with a forwardly facing primary mirror and a rearwardly facing first surface reflecting secondary mirror located forwardly of the primary mirror to create an intermediate image forwardly of the primary mirror. A zoom relay lens group is located optically rearwardly of the intermediate image and has a stationary field lens subgroup, a first movable lens subgroup and a second movable lens subgroup.

Abstract: A medication container has a tubular container body with an open upper end, and a cap detachably securable to the upper edge of the container body by clockwise rotation relative thereto, the cap and the container body having mutually engageable stops preventing anti-clockwise opening rotation of the cap relative to the container body when the cap is in an upper position relative to the container body. A cap liner of resilient material within the cap has a peripheral portion engageable with the upper end of the container body to close the upper end, the cap liner also having a central button portion in a central aperture in the cap for manual engagement by a person wishing to open the container.

Abstract: A method of removing slag and/or steel build-up from lances in steel making furnaces includes blasting dry ice (solid CO.sub.2) pellets on to a hot lance as it is being drawn out of a furnace. A refractory or ceramic coating may be applied to the lance while it is being inserted into the furnace.

Abstract: A medication container has a tubular container body with an upper open end, a cap detachably securable to the upper end of the container body by clockwise rotation relative thereto and removable from the container body by counter clockwise rotation relative thereto, and a cap liner within the cap and having a peripheral portion engageable with the upper end of the container body to close the upper end. The cap liner rotates with the cap when the cap is rotated in one direction relative to the container body and remains stationary relative to the cap when the cap is rotated in an opposite direction relative to the container body, the cap and the cap liner having indicia which indicates the next dosage time when the cap is rotated in the opposite direction.

Abstract: An attachment system is provided which preferably has a pair of elongate anchor rails adapted to rest on the upper surfaces of the respective cargo bed sides, and be fastened thereto in fixed supporting relation. The anchor rails are adapted to be securely affixed to both cargo bed sides and preferably include structure to receive the side walls of a protective bed liner or cargo bed accessories. Each of the anchor rails consists of an elongate member having horizontal and vertical segments. The lower portion of the vertical segment preferably defines an elongate channel adapted to accept a corresponding removable mating member for attachment of the cargo bed liner and the like, and an upstanding ridge is optionally included above the vertical segment to repel water from the cargo bed. The rails are arranged to receive an anchor beam between the rails and adjustable along the lengths of the rails.

Abstract: The invention provides a picker attachment and apparatus having the attachment for picking olives. The picker attachment includes a base and a plurality of longitudinally-extending spindles carried by and extending forwardly therefrom. Each spindle is rotatable about a longitudinal axis. The spindles are caused to rotate in unison by a spindle coupler. Each of the spindles has at least one longitudinally-extending elongate flat portion, each elongate flat portion having a longitudinally-extending edge being a radially peripheral edge of the spindle, the edge defining a longitudinally-extending flange disposed generally perpendicularly to the plane of the planar flat portion, whereby the spindles can receive a transversely-extending olive-bearing branch therebetween and engage and remove olives from the branch while rotating.

Abstract: A container assembly includes an elongated container having an elongated hollow body with opposite ends and a hollow externally screw-threaded cylindrical projection extending in a longitudinal direction from each opposite end, a short container having a squat hollow body with a hollow externally screw-threaded cylindrical projection extending from an end face thereof, and a tubular connector having opposite internally screw-threaded end portions.

Abstract: A retention device is provided for positioning and retaining an open generally cylindrical hose clamp on a selected hose. The device extends generally about a longitudinal axis and has a retainer and a locator spaced axially from the retainer in side-by-said relationship. The locator and retainer are coupled together and the locator is adapted to hold the clamp while the retainer is adapted to engage the hose to maintain the device in position on the hose. As a result, the clamp can be positioned orthogonally relative to the hose and the assembly is then ready for engagement on a rigid tubular fitting with the locator positioned on the hose remote from the tubular fitting. This permits the hose to be engaged over the tubular fitting with no direct resistance from the retention device.

Abstract: In accordance with this invention, there is provided apparatus for removing pin bones from fish fillets, the apparatus having a rotatable bone pulling cylinder and a puller plate defining a pin bone receiving space between the bone pulling cylinder and puller plate. The bone pulling cylinder has a cylindrical surface which is adapted to snag pin bones extending from a fish fillet disposed adjacent to the bone pulling cylinder and puller plate, and the puller plate has a forward portion profiled to have a radius of curvature which is commensurate with the radius of curvature of the cylindrical surface of the bone pulling cylinder.

Abstract: A collapsing frame for collapsing a moving tube of plastic material from a circular cross section to a flattened form has a pair of frame members positionable on diametrically opposite sides of the tube to converge towards each other in the direction of movement of the tube so as to collapse the tube by engagement of the tube therewith. Each frame member has mounted thereon for engagement by the tube a series of longitudinally spaced roller assemblies mounted for free rotation about axes substantially transverse to the direction of movement of the tube. Each roller assembly comprises at least one rotatable roller having a peripheral surface oriented to tend to move the tube at an outwardly inclined angle to the direction of movement of the tube.

Abstract: An orthodontic bracket comprises a spring ligating member comprising a thin flat metal strip that embraces the bracket body and is moved thereon between slot closed and open positions. At least the free end part of the spring member labial arm portion that closes the slot is of smaller width in the mesial distal direction than the arch wire slot gingival surface which is provided with a recess of smaller mesial distal width so that it is closed at its mesial and distal ends. The free end part of the labial arm portion extends into the recess to protect the spring member against excessive movement in the labial direction, while the arch wire slot gingival surfaces at the closed mesial and distal ends of the recess are engagable by an arch wire in the slot for application of maximum torque moment from the arch wire to the bracket.