Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fuel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, main and secondary fuel delivery outlets opening into the mixing passage, fuel passage means between the fuel chamber and the region of the main outlet, means for regulating fuel flow through said passage means, a supplemental chamber in the carburetor adjacent the secondary outlet, fuel channel means in the carburetor in communication with the region of the main outlet and the supplemental chamber, said fuel channel means including a bore, an elongated channel disposed normal to the bore, said elongated channel comprising a recess in an exterior surface region of the carburetor, gasket means covering the recess forming a wall of the elongated channel, one end region of the elongated channel opening into said bore, an angularly arranged channel connecting the elongated channel and the supplemental chamber, and air vent means for admitting air to the angularly arranged to delay delivery of fuel through the secondary outlet upon movement of the throttle valve to engine-idling position.
Claim 2
Dependent Claim
204 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fuel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, main and secondary fuel delivery outlets opening into the mixing passage, fuel passage means between the fuel chamber and the region of the main outlet, means for regulating fuel flow through said passage means, a supplemental chamber in the carburetor adjacent the secondary outlet, fuel channel means in the carburetor in communication with the region of the main outlet and the supplemental chamber, said fuel channel means including a bore, an elongated channel disposed normal to the bore, said elongated channel comprising a recess in an exterior surface region of the carburetor, gasket means covering the recess forming a wall of the elongated channel, one end region of the elongated channel opening into said bore, an angularly arranged channel connecting the elongated channel and the supplemental chamber, and air vent means for admitting air to the angularly arranged to delay delivery of fuel through the secondary outlet upon movement of the throttle valve to engine-idling position.
Claim 3
Dependent Claim
222 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fUel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, a fitting disposed in an opening in the carburetor adjacent the mixing passage, a transverse passage in the fitting, a restricted passage between the transverse passage and the fuel chamber, an adjustable valve member having a portion projecting through the passage in the fitting and a needle valve portion cooperating with the restricted passage to regulate fuel flow from the chamber into the fitting, a counterbore in the fitting having communication with the transverse passage, the counterbore opening into the mixing passage providing a main fuel delivery outlet, a secondary outlet opening into the mixing passage, fuel channel means for conveying fuel from the transverse passage to the secondary outlet, and vent means admitting air directly into the fuel channel means for delaying delivery of fuel from the fuel channel means through the secondary outlet upon movement of the throttle valve to engine-idling position, said vent means being effective upon opening movement of the throttle valve to promote rapid delivery of fuel from the fuel channel means through the main outlet for engine acceleration.
Claim 4
Dependent Claim
222 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fUel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, a fitting disposed in an opening in the carburetor adjacent the mixing passage, a transverse passage in the fitting, a restricted passage between the transverse passage and the fuel chamber, an adjustable valve member having a portion projecting through the passage in the fitting and a needle valve portion cooperating with the restricted passage to regulate fuel flow from the chamber into the fitting, a counterbore in the fitting having communication with the transverse passage, the counterbore opening into the mixing passage providing a main fuel delivery outlet, a secondary outlet opening into the mixing passage, fuel channel means for conveying fuel from the transverse passage to the secondary outlet, and vent means admitting air directly into the fuel channel means for delaying delivery of fuel from the fuel channel means through the secondary outlet upon movement of the throttle valve to engine-idling position, said vent means being effective upon opening movement of the throttle valve to promote rapid delivery of fuel from the fuel channel means through the main outlet for engine acceleration.
Claim 5
Dependent Claim
191 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fuel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, a fitting disposed in an opening in the carburetor adjacent the mixing passage, a transverse passage in the fitting, a restricted passage between the transverse passage and the fuel chamber, and adjustable valve member having a portion projecting through the passage in the fitting and a needle valve portion cooperating with the restricted passage to regulate fuel flow from the chamber into the fitting, a counterbore in the fitting having communication with the transverse passage, the counterbore opening into the mixing passage providing a main fuel delivery outlet, a secondary outlet opening into the mixing passage, fuel channel means for conveying fuel from the transverse passage to the secondary outlet, and vent means admitting air to the fuel channel means for delaying delivery of fuel from the fuel channel means through the secondary outlet upon movement of the throttle valve to engine-idling position.
Claim 6
Dependent Claim
191 words
In combination, a carburetor having a mixing passage and an unvented fuel chamber, a throttle valve in the mixing passage, a flexible diaphragm forming a wall of the fuel chamber, a fuel inlet, a valve for said inlet, means transmitting movement of the diaphragm to the inlet valve, a fitting disposed in an opening in the carburetor adjacent the mixing passage, a transverse passage in the fitting, a restricted passage between the transverse passage and the fuel chamber, and adjustable valve member having a portion projecting through the passage in the fitting and a needle valve portion cooperating with the restricted passage to regulate fuel flow from the chamber into the fitting, a counterbore in the fitting having communication with the transverse passage, the counterbore opening into the mixing passage providing a main fuel delivery outlet, a secondary outlet opening into the mixing passage, fuel channel means for conveying fuel from the transverse passage to the secondary outlet, and vent means admitting air to the fuel channel means for delaying delivery of fuel from the fuel channel means through the secondary outlet upon movement of the throttle valve to engine-idling position.
Claim 7
Dependent Claim
24 words
The combination according to claim 3 wherein the vent means includes a tubular member projecting into the air inlet region of the mixing passage.