Abstract: A skid plate for mounting on the end of a boat trailer and bunk includes a lip which depends from the main body of the plate for abutment with the rearward end of the bunk to protect the bunk and the hull of the boat being loaded onto or off of the trailer. The skid plates include an inclined forward portion to facilitate boat hull passage over the plate.

Abstract: A roof structure is adapted for removable attachment to a boat permitting use of the roof as an emergency float for boat occupants. The roof includes a shell having a buoyant member affixed thereto with an inflatable ring carried on the shell in a collapsed manner. A source of pressurized air is in controlled communication with the inflatable ring. Roof support structure includes lug equipped plates on the boat and the roof which, upon roof repositioning, permits separation and launching of the roof. A modified form of root support structure includes deck mounted, swingably mounted upright supports located adjacent the roof sides and which permit lowering of the roof into the water. The inflatable ring contributes to buoyancy as well as occupant protection from the water.

Abstract: A portable space heater includes a base suitable for insertion into a cup holder of a vehicle or other inhabitable strcuture. The base carries a post on which fuel containers are carried. A holder at the upper end of the post includes a clamp which retains a burner assembly in place with a heat reflector vertically spaced upward from the base. Fuel lines and suitable valving and fittings provide a controlled fuel flow to the heat reflector.

Abstract: A hazardous gas mixing apparatus includes a mixing chamber wherein air is mixed with such a gas to render same inert. An air inlet assembly admits an air flow induced into the mixing chamber and includes an air flow sensor having a probe located in a housing of the assembly. Differential air pressures detected by the probe are provided to a signal generating transmitter and signal converter serving a logic controller providing a display correlated to linear feet per minute air flow in the apparatus mixing chamber. A honeycomb air straightener serves to provide a laminar flow of air past the sensor probe. An intake screen on the housing reduces the intake of foreign particles.

Abstract: A table structure of the machine includes a table top defining an open area through which the trunk of a small tree may extend to enable lateral abutment of the lower trunk against an edge of the table top. A second or elevated abutment is carried on a post for engagement with an upper end segment of the tree trunk to position the trunk in an upright manner for subsequent cutting off of the trunk base. A circular power saw is swingably mounted on the table structure and swings about an axis during a trunk cutting operation. A saw carrier is spring biased so as to disengage the saw from the trunk being cut. A blade guard of the saw is automatically retracted by a tether to expose the saw blade during a cutting operation and oppositely to conceal the blade when retracted away from the tree trunk.

Abstract: A diaphragm pump is powered by fluctuating pressure in a pressurized conduit. A three way valve is cycled to alternately pressurize and vent the pump. A power diaphragm drives a piston having a skirt with a reduced end wall to displace a quantity of hydraulic fluid from a pump chamber to drive a pumping diaphragm. An inlet of the pump admits a quantity of fluid to be discharged via a pump outlet. A spring component biases the piston to return same upon venting of the pressurized conduit. The diaphragm pump is shown in a pumping system wherein a primary pump and an intermittently cycled three way valve operate the diaphragm pump to inject fluid into the output conduit from the primary pump.

Abstract: A stand for potted plants includes a tubular member for placement on a free standing post with base. Arms of rod stock are carried by the tubular member and are shaped to support and confine in place a centrally located potted plant. Hooks at the arm ends receive the bails of other potted plants. The arms are inclined downwardly and outwardly and carry their respective plants offset below the centrally located plant and contribute toward stability of the stand.

Abstract: A device including a disk shaped base having a cylindrical projection thereon about which a resilient sleeve is disposed. The sleeve is subject to partial compression during constriction of the vaginal sphincter muscle with repeated constriction serving to restore muscle tone and strength.

Abstract: A wheel supported irrigation system is provided with a locking assembly to immobilize the system against travel resulting from high winds or other causes. A system water pipe carries positionable leg members which, when deployed, are in ground contact. Wheel engaging arms carried by each leg member are adapted for engagement with wheel segments to stabilize the associated leg member when operatively deployed. The leg members include extensions to facilitate ground contact. The system water pipe is provided with leg engageable retainers to allow stowage of the leg members when retracted and stowed lengthwise along the water pipe. The retainers are of I cross-section with flanges confining the retracted leg members in place.

Abstract: A container is provided with a liner, such as a jigsaw puzzle, which is visible through translucent container walls. Retainers to hold the puzzle or puzzles in place against wall surfaces are panels in endwise engagement with one another. A modified form of retainer is a frame embodied in having a backing on which puzzle pieces are assembled and supported. Adhesive areas on the frame hold the frame and the assembled pieces in place against a container wall. Multiple positionable panels carried by a common base may also serve to retain the jigsaw puzzle pieces in place opposite a container wall. A method of providing a container with an assembled display is disclosed. The retainers may be of translucent material to render visible the inner surfaces of assembled puzzle pieces with a graphic display thereon.

Abstract: The apparatus includes fire retardant blankets normally stowed within housings in place on a building roof structure or below a roof eave. Cables extract the blankets for deployment over a roof. Fire retardant wall blankets stowed in housings adjacent roof eaves are deployed by gravity. For protection of a building end wall having a gable,a blanket support is carried subjacent the end of a roof structure and , upon release , of the support the same pivots to the horizontal whereat a fire retardant blanket is deployed. Associated with the blanket support is a triangularly shaped gable blanket which deploys adjacent the gable. A modification of the apparatus includes a deck mounted blanket housing in which is stowed a fire retardant blanket drawn over the deck and downwardly by a winch and cables. A further modification includes a blanket housing atop a roof ridge with roof mounted cable and blanket supports.

Abstract: A machine having pairs of powered rollers for propelling ears of corn along a course through a cutter head assembly for kernel separation. A hydraulic motor drives each roller by means of a powered shaft which, along with the motor, may be displaced during roller contact with a passing ear of corn by reason of flexible motor mounts each inducing a yieldable distal portion for motor attachment. The motors are shown in fluid communication with a single source of pressurized fluid. Equalizer arms each associated with a powered shaft ensures uniform, opposite displacment of each pair of rollers during contact with an ear of corn. A link coupling each pair of equalizer arms, and indirectly the shafts associated therewith, effects uniform roller displacement to permit ear travel along an axial course through the machine.

Abstract: A fender is attached to a vehicle side panel by a series of fastener assemblies having a resilient component permitting temporary displacement of the fender from the vehicle side panel. A compression spring biases a fender flange into engagement with the vehicle side panel and permits flange displacement along the fastener assembly as well as angular displacement for accentuated movement of the fender if necessary.

Abstract: A connector for attaching fence rails to posts including a clamp for placement about a post with each clamp serving to support a pair of rail ends. Each of the rail ends is fitted with a bracket having an upright flange for clamped engagement to a post surface. A modified bracket includes upper and lower flanges between which a rail end is received. The brackets may be of malleable construction to permit support of a fence rail in other than perpendicular relationship to an adjacent post. Each clamp includes a fastener assembly positionable opposite a rail end for partial concealment of the fastener assembly and clamp edges.

Abstract: A pulley assembly for a compound bow is provided with a take-up of spool configuration to receive a segment of a tensionable bow member wound thereabout. The take-up is engageable with the pulley proper member in a manner preventing relative movement between take-up and pulley assembly. To alter length of a tensionable member of the bow, the take-up is positionable about an axis parallel to an axis of the pulley assembly and lockable thereto. Modified forms of the take-up disclose various locking arrangements.

Abstract: A tool rack includes main frame members each having legs for installation in abutment with a building wall structure. Arm segments of the main frame members project rearwardly and carry, at their distal ends, a bracket attachable to building wall structure offset horizontally from the first mentioned building wall structure. The bracket defines a fastener receiving, elongate area exceeding the distance between adjacent wall studs of the wall structure. Pairs of upper and lower rails carry barrier components to define areas for reception of tools or other articles. A modified tool rack includes front and rear frames joined by barriers defining tool receiving areas. Arms on the frames extend rearwardly and support, at their distal ends, brackets defining a lengthwise extending open area to receive wall insertable fasteners.

Abstract: A tie having a shapeable elongate member with alligator clips affixed to its ends. A jacket on the elongate member is of resilient material. A holder is attachable to a clip and includes tube engaging members to support the tube in place relative the patient. The holder has closure strips for tube retention. A supplemental tie is attachable to the clips on the first mentioned elongate member to assist in supporting articles adjacent the patent. A clip of the tie may be attached to the elongate member to provide an enclosure for confining two or more tubes.

Abstract: A coupler is adapted for inserted engagement with a dental ejector valve and serves to couple a vacuum hose to the valve. A passageway in the coupler is closed by a flexible disk which flexes open in response to a vacuum inducted ejector system flow from a source. The disk is confined in place across the passageway by a retainer which biases the disk into engagement with a valve seat surface. The flexible disk blocks any reverse flow through the coupler as when a reduced pressure occurs from interaction of the patient's mouth with a saliva ejector.