摘要:
A push chain (24) is used to drive a piston (26) into a canister (21) of extrudable material. The push chain is stored in an elongated chain magazine (32), withdrawn from the magazine and into the canister by actuation of a trigger (16) connected to a sprocket (22) for the chain. The push chain exerts a compressive force on a piston rod connected to a piston at a point offset from the center line of the piston, causing the piston to rotate to lock the push chain. The amount of material remaining in a tube of extrudable material is enunciated by way of a content indicator driven by the push chain.
摘要:
A dual function heating and toasting apparatus is provided for radiantly heating or surface toasting bread-type food products. The apparatus includes a housing defining a heating/toasting chamber. A generally vertically oriented, center fixed heating platen is disposed in the chamber. A pair of generally vertically oriented, movable heating platens are disposed on opposite sides of the center fixed platen. A gate is movably mounted on the housing near the bottoms of the platens for movement between a closed position to hold a product between the platens and an open position allowing a finished product to exit the chamber. A product such as a bagel can be placed into the chamber onto the gate between one of the movable platens and the fixed platen and spaced therefrom to heat the bagel by radiant heat. Alternatively, a product such as a bun can be placed in the chamber onto the gate and the movable platen moved to bias the bun against the fixed platen to surface toast the bun. The gate is movable to the open position to allow the heated bagel or the toasted bun to exit the chamber.
摘要:
The method of changing the cage, including a bottom (31), grill (32) and lid (38), of a laboratory animal, includes the steps of: (a) providing a first rack (20) holding at least one clean bottom, grill and lid; (b) removing a clean bottom, grill and lid from said first rack; (c) assembling a clean cage from such bottom, grill and lid; (d) transferring a laboratory animal from a dirty cage to such assembled clean cage; (e) disassembling the dirty cage into its bottom, grill and lid components; (f) providing a second rack (20) having space for holding the dirty cage bottom, grill and lid components; (g) placing said dirty grill and lid on the second rack; (h) washing the dirty grill and lid while mounted on said second rack; (i) removing soiled bedding from the dirty bottom; (j) washing the bottom; (k) placing cleaned bedding in the washed bottom; and (l) placing said washed bottom with cleaned bedding on said second rack; thereby to change the cage of said laboratory animal.
摘要:
An illumination system for illuminating an area within a room includes one or more light sources, preferably disposed outside the room, one or more lighting heads disposed within the room, one or more light pipes and/or fiber bundles to transmit light from the source(s) to the lighting head(s). The system includes means for controlling both the intensity and the color rendering index of the light emitted from the lighting head. In a preferred embodiment, the sources include an incandescent source extending across the visible spectrum and a light emitting diode source which emits essentially red light, and control of the color rendering index is effected by controlling the relative amounts of light from the two sources reaching the lighting head. Preferred forms of the invention also include special joints which permit all necessary translations and rotations of the lighting head while still permitting a continuous light path via fiber bundles and/or light pipes from the source to the lighting head.
摘要:
A dispenser is provided for dispensing the extrudable contents of a collapsible container (10) having a nozzle (22) through which the container can be discharged by collapsing the container (10). The dispenser is of a piston/cylinder device, with the piston (70) having a container-engaging face provided with a contoured structure of a predetermined configuration corresponding generally to a collapsing profile of the collapsible container (10). An elongated flexible valve device (128) is slidably mounted relative to the housing and includes a coupling end coupled directly to a trigger member (78) of the dispenser and a valve end (140) for opening and closing an opening in the housing which defines the cylinder of the device. The flexible valve device (128) is a band member of plastic material and is operatively associated with a mechanism for holding the valve open when a cover of the housing is removed and for automatically closing the valve when the cover is replaced. A pistol grip handle (98) and the trigger (78) of the dispenser are ergodynamically configured for ease of operation. A set of interchangeable stop cams (156) are provided for positioning between the trigger (78) and the pistol grip handle (98) for selectively determining a metered amount of material to be dispensed by the dispenser for each actuation of the trigger (78).
摘要:
A dispenser is provided for dispensing the extrudable contents of a collapsible container (10) having a nozzle (22) through which the container can be discharged by collapsing the container (10). The dispenser is of a piston/cylinder device, with the piston (70) having a container-engaging face provided with a contoured structure of a predetermined configuration corresponding generally to a collapsing profile of the collapsible container (10). An elongated flexible valve device (128) is slidably mounted relative to the housing and includes a coupling end coupled directly to a trigger member (78) of the dispenser and a valve end (140) for opening and closing an opening in the housing which defines the cylinder of the device. The flexible valve device (128) is a band member of plastic material and is operatively associated with a mechanism for holding the valve open when a cover of the housing is removed and for automatically closing the valve when the cover is replaced. A pistol grip handle (98) and the trigger (78) of the dispenser are ergodynamically configured for ease of operation. A set of interchangeable stop cams (156) are provided for positioning between the trigger (78) and the pistol grip handle (98) for selectively determining a metered amount of material to be dispensed by the dispenser for each actuation of the trigger (78).
摘要:
A push chain (24) is used to drive a piston (26) into a canister (21) of extrudable material. The push chain is stored in an elongated chain magazine (32), withdrawn from the magazine and into the canister by actuation of a trigger (16) connected to a sprocket (22) for the chain. The push chain exerts a compressive force on a piston rod connected to a piston at a point offset from the center line of the piston, causing the piston to rotate to lock the push chain. The amount of material remaining in a tube of extrudable material is enunciated by way of a content indicator driven by the push chain.
摘要:
A ready-to-use pocket joinery assembly is manufactured by a first forming a fastener pocket (63) in a surface of a joinery member (33) near to and spaced from an end of the joinery member (54). Subsequently, one propels a fastener (74) having tip or point (88) into the fastener pocket (63) to impact and engage a fastener pocket end, which is opposite the end of the joinery member (33). In preferred embodiments having a bore, a fastener point does not impact the fastener pocket end because there is no bore opening. Finally, to a greater or lesser extend across a range of embodiments, one drives the fastener to a stable; engaged position wherein the fastener point or tip (88) is intermediate between the fastener pocket and the end of the joinery member. The result, in preferred embodiments having a bore and in preferred embodiments without a bore, is a joinery assembly with a joinery member and an embedded fastener.
摘要:
A dual function heating and toasting apparatus is provided for radiantly heating or surface toasting bread-type food products. The apparatus includes a housing (34) defining a heating/toasting chamber. A generally vertically oriented, center fixed heating platen (40) is disposed in the chamber. A pair of generally vertically oriented, movable heating platens (42) are disposed on opposite sides of the center fixed platen (40). A gate (46) is movably mounted on the housing near the bottoms of the platens for movement between a closed position to hold a product between the platens and an open position allowing a finished product to exit the chamber. A product such as a bagel can be placed into the chamber onto the gate between one of the movable platens and the fixed platen and spaced therefrom to heat the bagel by radiant heat. Alternatively; a product such as a bun can be placed in the chamber onto the gate and the movable platen moved to bias the bun against the fixed platen to surface toast the bun. The gate is movable to the open position to allow the heated bagel or the toasted bun to exit the chamber.