Snow blower apparatus

Claim 2

A SCARIFIER ASSEMBLY ADAPTED FOR APPLICATION TO THE NOZZLE STRUCTURE OF SNOW BLOWER APPARATUS, SAID ASSEMBLY COMPRISING FRAME MEANS DEFINING AN OPEN CENTER PORTION ADAPTED TO RECEIVE THE NOZZLE STRUCTURE AND PIVOTALLY MOUNTING A SHAFT MEMBER ACROSS OPPOSING SIDES OF SAID OPEN CENTER PORTION, SAID SHAFT MEMBERS EXTENDING SUBSTANTIALLY PARALLEL TO EACH OTHER AND EACH CARRYING A PLURALITY OF SPACED RESILIENT DEPENDING FINGERS, MEANS FOR RESILIENTLY BIASING SAID SHAFT MEMBERS TO POSITION SAID FINGERS SUBSTANTIALLY NORMALLY OF THE PLANE OF SAID FRAME MEANS, HANDLE AND LINKAGE MEANS OPERATIVELY ASSOCIATED WITH SAID SHAFT MEMBERS FOR PIVOTING THE LATTER TO INOPERATIVE POSITIONS IN SUBSTANTIAL ALIGNMENT WITH THE PLANE OF SAID FRAME MEANS, AND MEANS FOR RELEASABLY LATCHING SAID SHAFT MEMBERS IN THEIR SAID INOPERATIVE POSITIONS.

Claim 3

RAILROAD TRACK BLOWER APPARATUS ESPECIALLY ADAPTED FOR REMOVING SNOW FROM RAILROAD TRACKAGE, SAID APPARATUS COMPRISING A WHEELED VEHICLE ADAPTED TO RIDE ON THE RAILS OF A TRACK, AIR BLAST MEANS CARRIED BY SAID VEHICLE FOR APPLYING A SNOW DISINTEGRATING AIR BLAST DIRECTLY AGAINST THE TRACKAGE, SAID AIR BLAST MEANS COMPRISING A NOZZLE STRUCTURE CARRIED BY SAID VEHICLE AND EXTENDING DOWNWARDLY FROM ONE END THEREOF TOWARD THE TRACK, SAID NOZZLE STRUCTURE IN SAID DOWNWARDLY EXTENDING PORTION DEFINING OUTLET OPENING MEANS FOR DIRECTING AGAINST THE TRACK AN AIR FLOW FROM SAID NOZZLE STRUCTURE AT AN ANGLE THAT IS AT LEAST 80 DEGREES WITH RESPECT TO THE TRACK, AT A RATE THAT IS AT LEAST 10,000 CUBIC FEET PER MINUTE, AND THAT IS DISPOSED PROXIMATE THE TRACK RAILS, SAID NOZZLE STRUCTURE OUTLET OPENING MEANS BEING PROPORTIONED AND POSITIONED TO EXTEND ACROSS AND BETWEEN BOTH RAILS OF THE TRACK, SAID OUTLET OPENING MEANS DEFINING AN OUTLET OPENING AREA THAT IS APPROXIMATELY ONE AND ONE-HALF SQUARE FEET, SAID OUTLET OPENING MEANS BEING ELONGATED IN CONFIGURATION AND EXTENDING TRANSVERSELY OF THE TRACK, SAID AREA HAVING A LENGTH TRANSVERSELY OF THE TRACK THAT APPROXIMATES TWENTY-FOUR TIMES ITS DIMENSION LONGITUDINALLY OF THE TRACK, AND BLOWER MEANS CARRIED BY SAID VEHICLE AND CONNECTED TO SAID NOZZLE STRUCTURE FOR SUPPLYING A SUFFICIENT FLOW OF AIR TO SAID NOZZLE STRUCTURE TO PROVIDE AN AIR FLOW FROM SAID OUTLET OPENING MEANS THAT IS AT LEAST 10,000 CUBIC FEET PER MINUTE.

Claim 4

RAILROAD TRACK BLOWER APPARATUS ESPECIALLY ADAPTED FOR REMOVING SNOW FROM RAILROAD TRACKAGE, SAID APPARATUS COMPRISING A WHEELED VEHICLE ADAPTED TO RIDE ON THE RAILS OF A TRACK, AIR BLAST MEANS CARRIED BY SAID VEHICLE FOR APPLYING A SNOW DISINTEGRATING AIR BLAST DIRECTLY AGAINST THE TRACKAGE, SAID AIR BLAST MEANS COMPRISING A NOZZLE STRUCTURE CARRIED BY SAID VEHICLE AND EXTENDING DOWNWARDLY FROM ONE END THEREOF TOWARD THE TRACK, SAID NOZZLE STRUCTURE IN SAID DOWNWARDLY EXTENDING PORTION DEFINING OUTLET OPENING MEANS FOR DIRECTING AGAINST THE TRACK AN AIR FLOW FROM SAID NOZZLE STRUCTURE AT AN ANGLE THAT IS AT LEAST 80 DEGREES WITH RESPECT TO THE TRACK, AT A RATE THAT IS AT LEAST 10,000 CUBIC FEET PER MINUTE, AND THAT IS DISPOSED PROXIMATE THE TRACK RAILS, SAID NOZZLE STRUCTURE OUTLET OPENING MEANS BEING PROPORTIONED AND POSITIONED TO EXTEND ACROSS AND BETWEEN BOTH RAILS OF THE TRACK, SAID OUTLET OPENING MEANS DEFINING AN OUTLET OPENING AREA THAT IS APPROXIMATELY ONE AND ONE-HALF SQUARE FEET, SAID OUTLET OPENING MEANS BEING ELONGATED IN CONFIGURATION AND EXTENDING TRANSVERSELY OF THE TRACK, SAID AREA HAVING A LENGTH TRANSVERSELY OF THE TRACK THAT APPROXIMATES TWENTY-FOUR TIMES ITS DIMENSION LONGITUDINALLY OF THE TRACK, AND BLOWER MEANS CARRIED BY SAID VEHICLE AND CONNECTED TO SAID NOZZLE STRUCTURE FOR SUPPLYING A SUFFICIENT FLOW OF AIR TO SAID NOZZLE STRUCTURE TO PROVIDE AN AIR FLOW FROM SAID OUTLET OPENING MEANS THAT IS AT LEAST 10,000 CUBIC FEET PER MINUTE.