Abstract:
313,824. Hopkirk, F. C., and Tennant & Co., Ltd., C. Sept. 29, 1928. Compositions containing tar, tar oil. and bitumen.-As a binding agent in road construction, 61 per cent tar is mixed with 5 per cent light coal tar oil containing a minimum of 5 per cent naphthalene and less than 1 per cent water, and 34 per cent bitumen, preferably steam refined from heavy Mexican crude. The bitumen is heated to between 100‹ F. and 200‹ F. and incorporating temperature not exceeding 300‹ F. to the mixture of tar and tar oil prepared by heating the tar to between 100‹ F. and 200‹ F. and incorporating the oil. The mixture is applied hot by heating to between 240‹ F. and 280‹ F.
Abstract:
950,293. Moulded fruit cartons. J. FERRARI Ltd., and CHARLES TENNANT & CO. Ltd. March 9, 1961 [Jan. 28, 1960], No. 3037/60. Heading B8P. An open-topped box-like container 1 made of a thermoplastic synthetic resinous material, e.g. " Polythene " (Registered Trade Mark), has a handle 2 moulded integrally with the box whose top it bridges. The handle is in two parts 3 and 4, each an extension of the sides 1a and 1b and which are releasably joined by a stud 8 and hole or press fastener. The underside of the floor 12 has a bead extending parallel to the four edges and carrying on its longitudinal portions a series of small studs which engage the wall edges of the next lower filled containers when stacked in pairs at right-angles to each other. The empty containers are nested with the handle parts 3 and 4 released and upright. The top edge of the side walls and the base may be reinforced by ribbing. The containers may be of various colours.
Abstract:
1,094,471. Blow-moulding. CHARLES TENNANT & CO. Ltd. Aug. 17, 1964 [May 16, 1963], No. 19461/63. Heading B5A. [Also in Division E1] An extruded plastics parison, e.g. P.V.C., polythene, polystyrene or nylon, which is largely semi-translucent but has a translucent strip is blow-moulded to form a seamless light bowl for a Belisha-type beacon having a clear segment defined by a pair of semicircular arcs.
Abstract:
1,117,412. Plastics containers; container closures. CHARLES TENNANT & CO. Ltd., and J. D. L. DIXON. 24 Jan., 1966 [5 Dec., 1964], No. 49591/64. Headings B8P and B8T. [Also in Division B5] A container 10 and lid are integrally moulded from a thermoplastic material by a blow moulding, rotational casting or injection moulding method. A neck 14 is severed to separate the lid from the container and the lid may then be screwed on to the container by engaging lugs 18, 19. Tapered walls 10B enable containers to be nested whilst recesses 17 in the container base accommodate projections 16 in the lid to enable stacking of the containers. The containers may be made tamper proof by forming a bore through the lid and interengaging lugs to receive a wire seal.
Abstract:
A system and method for dispensing a treatment fluid is provided. The system includes a surface maintenance machine, a fluid reservoir, an air blower, and one or more fluid dispensing systems. The one or more fluid dispensing systems each include one or more nozzles in fluid communication with the air blower. The air blower generates an air pressure and dispenses air through the one or more nozzles while the treatment fluid is dispensed through the one or nozzles. The dispensing of air and treatment fluid dispenses the treatment fluid in a mist, fog, or spray to a surface. A method for dispensing a treatment fluid is also provided. The method includes generating an electrically charged treatment fluid and dispensing the electrically charged treatment fluid from the one or more nozzles to a surface.
Abstract:
A surface maintenance machine comprises a surface maintenance head assembly with attached surface maintenance tool for collecting debris/fluid using a fluid delivery/recovery system. Embodiments include an outlet nozzle configured to dispense cleaning fluid exiting the outlet nozzle on the surface maintenance tool. The outlet nozzle is fluidly connected to a cleaning fluid source which can vary the intensity of cleaning fluid exiting the outlet nozzle such that different intensities of the cleaning fluid correspond to the cleaning fluid being dispensed on different areas of the surface maintenance tool. Embodiments also include a second outlet nozzle, located opposite the first, which is configured to dispense cleaning fluid exiting the outlet nozzle on the surface maintenance tool. Further embodiments include a pump which can vary the intensity of cleaning fluid exiting the outlet nozzle in a cyclical manner and suspend the cleaning fluid from exiting the outlet nozzle.
Abstract:
A surface maintenance machine is provided having a maintenance head assembly positioned substantially within an envelope of the machine. The maintenance head assembly has at least one maintenance tool attachable thereto. The machine also includes a tool eject mechanism positioned below an upper surface of the body. The tool eject mechanism can generate a drop force sufficient to overcome the force between the maintenance tool and the maintenance head assembly. The tool eject mechanism can have an eject button extending above the upper surface of the deck. The eject button can be actuable by at least a portion of the upper surface of the body of the machine when the maintenance head assembly is raised toward the upper surface of the body of the machine beyond a transport position into a tool eject position. When actuated, the tool eject mechanism can eject the maintenance tool from the maintenance head assembly.
Abstract:
An automatic and dynamic maintenance scheduling system for surface cleaning machines. Based on the receipt or lack of receipt of machine usage data from the machine, the system will adjust or maintain scheduled service call dates.
Abstract:
A cleaning solution generator (40) comprising a housing (42) with an interior reservoir (60) and a brine tank (102), the cleaning solution generator (40) being configured to generate an alkaline solution from a mixed solution and to operably direct the generated alkaline solution to the interior reservoir (60) of the housing (42).
Abstract:
An impeller assembly and method of providing a plurality of radially-aligned aerodynamic channels including a rim plate defining a plurality of blades and the backplate defining a blade interlock structure for aligning and coupling the plates together. The rim plate defines a plurality of fluid-engaging blades with the aerodynamic channels being defined between adjacent pairs of the blades. The interlock structure includes a plurality of tine-shaped interlocks extending from the backplate. Each blade of the impeller may engage the interlock structure in a saddle manner. The backplate is defined by areas of reduced thickness allowing outer portions of the backplate to flex (rotate) toward further contact with the rim plate. The impeller assembly is provided with a plurality of aerodynamic channels defined by complex curved surfaces of the back plate and the rim plate to improve efficiency.