Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
362 words
An apparatus for the injection of a fluid sample into a fluid analyzing instrument comprising: a. a housing removably secured to said fluid analyzing instrument, said housing having passageways therein, the first passageway extending from end-to-end and being in alignment with the fluid injection poinT of the instrument at the end of the housing secured to said instrument, the second passageway interconnecting with said first passageway within the housing and being adapted to receive a sample of the fluid to be analyzed; b. first conduit means for delivering a supply of the fluid to be analyzed to the second passageway of said housing; c. a syringe-type device having a needle portion thereof capable of insertion in said first passageway, said needle being of sufficient length to permit insertion therethrough into the gas analyzing instrument at the fluid injection point thereof, said device also having a plunger means capable of movement between a fluid collecting position in which fluid is drawn into said needle and a fluid expelling position in which fluid is forced from said needle; d. first sealing means contacting said housing and positioned across said first passageway so as to prevent the fluid that enters said housing through said second passageway from venting to the atmosphere through said first passageway, said sealing means being penetrable by said needle and of a self-sealing character so as to form a tight seal about the needle inserted therethrough; and e. second sealing means contacting said housing and positioned across said first passageway so as to prevent the uncontrolled movement of fluid therefrom into said fluid analyzing instrument, said second sealing means being penetrable by said needle and of a self-sealing character so as to form a tight seal about the needle inserted therethrough into said instrument whereby, a representative sample of the fluid to be analyzed may be delivered to the interior of said housing and passed, by means of said needle, into the fluid analyzing instrument without change in composition due to a loss of a portion thereof to the atmosphere, thereby assuring that the analysis of the sample in said instrument accurately reflects the composition of the fluid to be analyzed.
Claim 2
Independent Claim
362 words
An apparatus for the injection of a fluid sample into a fluid analyzing instrument comprising: a. a housing removably secured to said fluid analyzing instrument, said housing having passageways therein, the first passageway extending from end-to-end and being in alignment with the fluid injection poinT of the instrument at the end of the housing secured to said instrument, the second passageway interconnecting with said first passageway within the housing and being adapted to receive a sample of the fluid to be analyzed; b. first conduit means for delivering a supply of the fluid to be analyzed to the second passageway of said housing; c. a syringe-type device having a needle portion thereof capable of insertion in said first passageway, said needle being of sufficient length to permit insertion therethrough into the gas analyzing instrument at the fluid injection point thereof, said device also having a plunger means capable of movement between a fluid collecting position in which fluid is drawn into said needle and a fluid expelling position in which fluid is forced from said needle; d. first sealing means contacting said housing and positioned across said first passageway so as to prevent the fluid that enters said housing through said second passageway from venting to the atmosphere through said first passageway, said sealing means being penetrable by said needle and of a self-sealing character so as to form a tight seal about the needle inserted therethrough; and e. second sealing means contacting said housing and positioned across said first passageway so as to prevent the uncontrolled movement of fluid therefrom into said fluid analyzing instrument, said second sealing means being penetrable by said needle and of a self-sealing character so as to form a tight seal about the needle inserted therethrough into said instrument whereby, a representative sample of the fluid to be analyzed may be delivered to the interior of said housing and passed, by means of said needle, into the fluid analyzing instrument without change in composition due to a loss of a portion thereof to the atmosphere, thereby assuring that the analysis of the sample in said instrument accurately reflects the composition of the fluid to be analyzed.
Claim 3
Dependent Claim
178 words
The apparatus of claim 1 in which said housing comprises: a. a cell having said interconnecting passageway therein, the first passageway extending from end to end thereof and the second passageway being adapted to receive a sample of the fluid to be analyzed; b. an inner end cap removably secured to said cell and to said instrument, said inner cap having a passageway therethrough in alignment with said first passageway of the cell and also in with the fluid injection point of said instrument; and c. an outer end cap removably secured to said cell, said outer end cap having a passageway therethrough in alignment with said first passageway through said cell, said first sealing means being placed between said cell and said outer end cap and positioned across the passageway extending therebetween so as to prevent the venting of fluids to the atmosphere, and said second sealing means being placed between said cell and inner end cap and positioned across said passageway extending therebetween so as to prevent the uncontrolled flow of fluid into said analyzing instrument.
Claim 4
Dependent Claim
72 words
The apparatus of claim 2 in which said second passageway in said cell extends from side to side therein and including second conduit means for discharging fluids from said passageway and including valve means for controlling the flow of fluids through said second conduit means, whereby the passageways in said housing may be purged so as to assure that a representative sample of the fluids being analyzed is contained within said housing.
Claim 5
Dependent Claim
53 words
The apparatus of claim 3 and including third sealing means placed between said cell and said inner end cap and positioned across said first passageway extending therebetween, said third sealing means being penetrable by said needle and of a self-sealing character so as to form a tight seal about the needle inserted therethrough.
Claim 6
Dependent Claim
28 words
The apparatus of claim 2 and including valve means positioned in said first conduit means for controlling the delivery of fluids to said second passageway in said cell.
Claim 7
Dependent Claim
17 words
The appaRatus of claim 4 and including mechanical means for securing said syringe-type device to said housing.
Claim 8
Dependent Claim
57 words
The apparatus of claim 1 in which said syringe-type device has a calibration scale associated therewith so that the amount of fluid drawn into said needle by movement of said plunger means into a fluid collecting position may readily be observed, facilitating the injection of a desired volume of the sample to be analyzed into said instrument.
Claim 9
Dependent Claim
72 words
The apparatus of claim 7 and including stop means attached to the mechanical means for securing said syringe-type device to said housing, said stop means being positioned so as to limit the movement of said plunger means to a predetermined point so as to facilitate the collecting of a predetermined quantity of fluid in said needle and subsequently expelling said predetermined quantity of fluid from said needle into said fluid analyzing instrument.
Claim 10
Dependent Claim
26 words
The apparatus of claim 1 in which said first and second sealing means comprise rubber pads capable of maintaining pressure-tight seals around said needle inserted therethrough.
Claim 11
Dependent Claim
28 words
The apparatus of claim 4 in which said first, second and third sealing means comprise rubber pads capable of forming a pressure-tight seal around said needle inserted therethrough.