US3742899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder marker
Assignee: TRIPLE A TROUSER Mfg CO Inc
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Filing: 1971-09-23
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Granted: 1973-07-03
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Expires: 1991-09-23
Abstract
Abstract A marking device is disclosed for producing a powder mark upon a fabric piece when it is positioned against the device, having sensing orifice which normally projects a flow of low pressure air, the positioned fabric piece obstructing the low pressure flow and thereby causing a back air pressure which is sensed and amplified, the amplified air signal activating a cylinder which produces a pulse of compressed air which is communicated to the interior of a powder box. The power box houses a supply of marking powder and contains, on the front face thereof, the sensing orifice and an immediately adjacent marking port, such that when the fabric piece is positioned at the marking port it also obstructs the sensing orifice, causing an exact amount of powder to be expelled out of the port and to be impinged upon the fabric at the point desired to be marked.
Inventors
- 👤 J Alperin
- 👤 J Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:07
CPC Classifications
A; A41; A41H; A41H23/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
127 words
Apparatus for automatically marking an object at a desired point when the object is positioned in specific registry with the apparatus, comprising: a. marking means for expelling marking substance onto said object; b. sensing means, for sensing when an object is in position to be marked, and normally emitting a sensing signal; c. fluid supply means for providing a fluid under pressure; d. energizing means, connected to said sensing means and said fluid supply means, and having a fluid output connected to said marking means; and, e. said sensing means adapted to activate said energizing means when said object is positioned in registry therewith such as to obstruct said emission, the output of said energizing means causing said marking means to expel marking substance onto said object.
Claim 2
Dependent Claim
127 words
Apparatus for automatically marking an object at a desired point when the object is positioned in specific registry with the apparatus, comprising: a. marking means for expelling marking substance onto said object; b. sensing means, for sensing when an object is in position to be marked, and normally emitting a sensing signal; c. fluid supply means for providing a fluid under pressure; d. energizing means, connected to said sensing means and said fluid supply means, and having a fluid output connected to said marking means; and, e. said sensing means adapted to activate said energizing means when said object is positioned in registry therewith such as to obstruct said emission, the output of said energizing means causing said marking means to expel marking substance onto said object.
Claim 3
Dependent Claim
101 words
The apparatus as described in claim 1, wherein said energizing means contains an amplifier for producing a relatively high pressure output in response to a relatively low pressure signal from said sensing means, a cylinder and piston for producing a pulse of fluid pressure in response to an output from said amplifier, adjusting means for controlling the magnitude of said pulse of fluid pressure. and a double check valve for communicating said pulse to said powder box, and for providing air intake to said cylinder after said pulse, which air intake is free of any marking substance from said marking means.
Claim 4
Dependent Claim
18 words
The apparatus as described in claim 2, wherein said fluid is air, and said marking substance is powder.
Claim 5
Dependent Claim
72 words
The apparatus as described in claim 3, wherein said marking means is a box with a hollow interior housing said powder, having a marker port from which powder is expelled, and having equal length channels communicating from the output of said double check valve to oppositely located ports at the interior of said box, whereby to supply air pressure to the interior of said box in equal amounts from substantially opposite directions.
Claim 6
Dependent Claim
78 words
The apparatus as described in claim 4, wherein said sensing means comprises a back pressure orifice mounted on the front of said box aNd adjacent to said marker port, said back pressure orifice communicating with a tee through which low pressure air is passed to said orifice, said tee being adapted to pass low pressure air to said amplifier when said object is positioned so as to obstruct the flow of low pressure air out of said orifice.
Claim 7
Dependent Claim
33 words
The apparatus as described in claim 5, wherein said fluid supply means comprises an air regulator for providing a controlled low pressure air supply which is communicated to the input of said tee.
Claim 8
Dependent Claim
181 words
Apparatus for powder marking a fabric element at a desired point when such element is positioned in specific registry with the apparatus, comprising: a. air supply means, for providing a source of relatively high pressure air and a source of regulated relatively low pressure air; b. back pressure sensing means, having a sensing orifice in communication with said regulated source, for providing a low pressure signal when said orifice is obstructed by the positioning of said fabric element so as to generally block the flow of air therefrom; c. fluid amplifier means connected to said high pressure source, adapted to provide a high pressure output of air when said low pressure signal is connected to it; d. air pulse means, having a cylinder with piston contained therein, for providing a pulse of air under pressure in response to said high pressure output from said fluid amplifier; e. powder marker means, for issuing a pulse of marking powder in response to receiving said pulse of air; and f. a valve, for unilaterally passing said pulse from said cylinder to said marker means.
Claim 9
Dependent Claim
181 words
Apparatus for powder marking a fabric element at a desired point when such element is positioned in specific registry with the apparatus, comprising: a. air supply means, for providing a source of relatively high pressure air and a source of regulated relatively low pressure air; b. back pressure sensing means, having a sensing orifice in communication with said regulated source, for providing a low pressure signal when said orifice is obstructed by the positioning of said fabric element so as to generally block the flow of air therefrom; c. fluid amplifier means connected to said high pressure source, adapted to provide a high pressure output of air when said low pressure signal is connected to it; d. air pulse means, having a cylinder with piston contained therein, for providing a pulse of air under pressure in response to said high pressure output from said fluid amplifier; e. powder marker means, for issuing a pulse of marking powder in response to receiving said pulse of air; and f. a valve, for unilaterally passing said pulse from said cylinder to said marker means.
Claim 10
Dependent Claim
157 words
Apparatus for automatically marking an object at a desired point when the object is positioned in specific registry with the apparatus, comprising: a. marking means for marking said object with a marking substance, having a housing containing said substance and having a marker port therein through which the substance is expelled; b. sensing means, providing a flow of low pressure air through an orifice adjacent to said marker port, for sensing when an object is in position to be marked; c. actuating means, connected to said sensing means, and having an output connected to said marking means; and d. said sensing means communicating a signal to said actuating means when said object is in position such that the air flow through said orifice is substantially obstructed, the actuating means producing an output which causes said marking means to expel marking substance, producing a mark on the object at said desired point in registry with the marker port.
Claim 11
Dependent Claim
157 words
Apparatus for automatically marking an object at a desired point when the object is positioned in specific registry with the apparatus, comprising: a. marking means for marking said object with a marking substance, having a housing containing said substance and having a marker port therein through which the substance is expelled; b. sensing means, providing a flow of low pressure air through an orifice adjacent to said marker port, for sensing when an object is in position to be marked; c. actuating means, connected to said sensing means, and having an output connected to said marking means; and d. said sensing means communicating a signal to said actuating means when said object is in position such that the air flow through said orifice is substantially obstructed, the actuating means producing an output which causes said marking means to expel marking substance, producing a mark on the object at said desired point in registry with the marker port.
Claim 12
Dependent Claim
31 words
The apparatus as described in claim 8, comprising adjusting means for adjusting the output of said actuating means, to cause said marking means to expel an exact amount of marking substance.
Claim 13
Dependent Claim
36 words
The apparatus as described in claim 9, wherein said actuating means comprises an air-driven piston, and said adjusting means comprises an adjustable piston stop element, the adjustable position of which controls the stroke of said piston.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |