US3813012A — Air powered sealant dispenser, including flexible…

Claim 1

Independent Claim 134 words

In a dispenser for receiving and holding a cartridge of flowable material and for discharging such material by selectively applying a pressure-fluid to a drivable portion of such cartridge, the improvement comprising; manually operable fluid pressure control means for selectively applying said pressure-fluid having a flexible tubular fluid inlet conduit adapted to receive a supply of relatively high pressure-fluid and a flexible tubular fluid exhaust conduit, said conduits communicating with the drivable portion of said cartridge, and actuator means for selectively collapsing one of said conduits to restrict the flow of fluid therethrough while concurrently uncollapsing the other said conduit to allow flow of fluid therethrough and vice versa, whereby said drivable portion of the cartridge may be selectively pressurized to discharge the flowable material from said cartridge or vented to terminate said discharge.

Claim 2

Dependent Claim 134 words

In a dispenser for receiving and holding a cartridge of flowable material and for discharging such material by selectively applying a pressure-fluid to a drivable portion of such cartridge, the improvement comprising; manually operable fluid pressure control means for selectively applying said pressure-fluid having a flexible tubular fluid inlet conduit adapted to receive a supply of relatively high pressure-fluid and a flexible tubular fluid exhaust conduit, said conduits communicating with the drivable portion of said cartridge, and actuator means for selectively collapsing one of said conduits to restrict the flow of fluid therethrough while concurrently uncollapsing the other said conduit to allow flow of fluid therethrough and vice versa, whereby said drivable portion of the cartridge may be selectively pressurized to discharge the flowable material from said cartridge or vented to terminate said discharge.

Claim 3

Dependent Claim 52 words

In the dispenser of claim 1, said manually operable fluid pressure control means further comprising spring biasing means for continuously urging said actuator means to a position in which said fluid intake conduit is fully collapsed and said exhaust conduit is uncollapsed to respectively block and pass the flow of fluid therethrough.

Claim 4

Dependent Claim 101 words

In the dispenser of claim 1, said actuator means of said manually operable control means comprising; a pivotally mounted member having first and second positions of limited relative rotation, abutment means disposed in proximate relation to said pivotally mounted member, and said flexible conduits arranged between said abutment means and said member such that said inlet conduit is collapsed between said abutment means and said member in its first position and uncollapsed in its second position and said exhaust conduit is collapsed between said abutment means and said member in its second position of rotation and uncollapsed in its first position.

Claim 5

Dependent Claim 60 words

In the dispenser of claim 3, said actuator means being further defined by said pivotally mounted member having positions intermediate said first and second positions of rotation in which said inlet and exhaust conduits are partially collapsed so as to afford limited inlet floW of pressure fluid to the drivable portion of said cartridge and limited venting of fluid therefrom.

Claim 6

Dependent Claim 51 words

In the dispenser of claim 3, said actuator means further comprising; spring biasing means continuously urging said pivotally mounted member to its first position of rotation, such that said actuator means is biased to a normal off condition in which said inlet conduit is closed and said exhaust conduit is open.

Claim 7

Dependent Claim 142 words

In the dispenser of claim 1, wherein said cartridge is received within and supported by a cartridge holder and a pistol grip structure is provided connected to said cartridge holder for convenient manipulation of the dispenser, said actuator means comprising; a finger operated trigger member pivotally mounted on said pistol grip structure for controlled movement between first and second positions of relative rotation, abutment means disposed on said pistol grip structure proximate to said trigger member, and said flexible conduits being arranged between said abutment means and said trigger member such that said inlet conduit is collapsed between said abutment means and said trigger member in its first position of rotation and uncollapsed in its second position, and said exhaust conduit is collapsed between said abutment and said trigger member in its second position of rotation and uncollapsed in its first position.

Claim 8

Dependent Claim 58 words

In the dispenser of claim 6, said abutment means comprising an inlet conduit abutment and an exhasut conduit abutment disposed on said grip structure at spaced apart locations, and said inlet and exhaust conduits arranged in crisscrossed relationship with respect to said abutments so that said conduits pass only between their associated abutments respectively and said trigger member.

Claim 9

Dependent Claim 114 words

A dispenser for flowable maerial contained within a cartridge of the type having a fluid drivable portion at one end for forced discharge of the material out of the other end, comprising; cartridge holder means for receiving and supporting such a cartridge and having a fluid drive chamber adapted for sealed communication with said fluid drivable portion of said cartridge; and manually operable fluid pressure control means connected to said cartridge holder means and having a flexible tubular fluid inlet conduit and a flexible tubular fluid exhaust conduit communicating with said pressure drive chamber, and actuator means for selectively collapsing one of said conduits while concurrently uncollapsing the other said conduit and vice versa.

Claim 10

Dependent Claim 114 words

A dispenser for flowable maerial contained within a cartridge of the type having a fluid drivable portion at one end for forced discharge of the material out of the other end, comprising; cartridge holder means for receiving and supporting such a cartridge and having a fluid drive chamber adapted for sealed communication with said fluid drivable portion of said cartridge; and manually operable fluid pressure control means connected to said cartridge holder means and having a flexible tubular fluid inlet conduit and a flexible tubular fluid exhaust conduit communicating with said pressure drive chamber, and actuator means for selectively collapsing one of said conduits while concurrently uncollapsing the other said conduit and vice versa.

Claim 11

Dependent Claim 91 words

The dispenser of claim 8, comprising, a pistol grip structure connected to said cartridge holding means for convenient manipulation of the dispenser, said inlet and exhaust conduits extending upwardly from a butt end of said pistol grip structure into communication with said pressure drive chamber of said holder means, said actuator means comprising a trigger member pivotally mounted to said pistol grip structure and abutment means against which said inlet and exhaust conduits are selectively collapsed by movement of said trigger member between first and second positions of limited relative rotation.

Claim 12

Dependent Claim 37 words

The dispenser of claim 8, said manually operable control means comprising spring biasing means continuously urging said actuator means to a disposition in which said inlet conduit is fully collapsed and said exhaust conduit is substantially uncollapsed.

Claim 13

Dependent Claim 143 words

In a method of dispensing a flowable sealant material from a cartridge containing such material including the steps of alternately applying a fluid pressure to a drivable portion of the cartridge for ejecting the material and exhausting such pressure fluid to atmosphere to terminate said ejection, the improvement in the steps of applying and exhausting the pressure fluid comprising; conducting pressure fluid at a relatively high pressure through a flexible tubular conduit into communication with the fluid drivable portion of the cartridge, exhausting the pressure fluid communicating with the drivable portion of the cartrIdge through a flexible tubular conduit to atmosphere, and selectively controlling the flow of fluid through said tubular conduits by physically collapsing one of said tubular conduits while uncollapsing the other and vice versa to achieve the alternate modes of discharge and termination of the flowable material from said cartridge.

Claim 14

Dependent Claim 143 words

In a method of dispensing a flowable sealant material from a cartridge containing such material including the steps of alternately applying a fluid pressure to a drivable portion of the cartridge for ejecting the material and exhausting such pressure fluid to atmosphere to terminate said ejection, the improvement in the steps of applying and exhausting the pressure fluid comprising; conducting pressure fluid at a relatively high pressure through a flexible tubular conduit into communication with the fluid drivable portion of the cartridge, exhausting the pressure fluid communicating with the drivable portion of the cartrIdge through a flexible tubular conduit to atmosphere, and selectively controlling the flow of fluid through said tubular conduits by physically collapsing one of said tubular conduits while uncollapsing the other and vice versa to achieve the alternate modes of discharge and termination of the flowable material from said cartridge.

Claim 15

Dependent Claim 95 words

The dispenser of claim 8, wherein said cartridge holder means comprises; a hollow generally cylindrical head portion having an open end communicating with said cartridge plunger and a closed end, said head portion being formed with external threads adjacent its open end; a plurality of adapter rings having both internal and external threads for optionally threadedly securing any selected one of said retainers to said external threads on said head portion, thereby adapting a single universal head portion of the dispenser for receiving a plurality of different size and types of cartridges and cartridge retainers.

Claim 16

Dependent Claim 123 words

The dispenser of claim 12 further comprising; a generally elongated pistol grip structure having one end connected to said head portion with the axis of said head portion generally at right angles to the longitudinal axis of said structure; said inlet and exhaust conduits extending upwardly and interiorly of said pistol grip structure from a butt end thereof into communication with said pressure drive chamber defined interiorly of said hollow head portion; and said actuator means comprising a finger operated trigger member pivotally mounted to said pistol grip structure and abutment means carried by said pistol grip structure against which said inlet and exhaust conduits are selectively collapsed by movement of said trigger member between first and second positions of limited relative rotation.

Claim 17

Dependent Claim 33 words

The dispenser of claim 12, wherein said head portion is formed with annular coaxial margins circumferentially extending about its open end for receiving and sealingly engaging with end margins of different size cartridges.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-05-27	1977-11-26	1978-05-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-05-27	1981-11-26	1982-05-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-05-27	1985-11-26	1986-05-28	$7700.00	Window Closed / Lapsed

Air powered sealant dispenser, including flexible tubular conduits as valve means

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