US3755861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension free cloth dispensing apparatus
Assignee: Raytheon Co
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Filing: 1971-06-28
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Granted: 1973-09-04
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Expires: 1991-06-28
Abstract
Abstract Means and method for spreading cloth on a moving support surface from a roll or bolt of cloth with a negligible amount of tension on the cloth to cause the cloth to lie flat. The cloth is rolled off the bolt into a slack loop where sensing means determine the extent of the loop and generate signals to control the dispensing of cloth off of the roll into the loop. The cloth is then pulled out of the slack loop over a smooth surface onto the surface of a belt by the mere friction between the cloth and the belt, the tension in the cloth on the belt being minimal, thereby avoiding forming of tension wrinkles in the cloth.
Inventors
- 👤 R Castro
- 👤 W Newton
- 👤 E Toscano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:54
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/34; D06B3/345
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
Apparatus for spreading a strip of cloth from a source thereof onto a horizontal support surface with a minimum of wrinkling comprising: a. a frame; b. means for effecting relative horizontal movement between said support surface and said frame; c. an arcuate, smooth slide mounted on said frame, said slide having: 1. a cloth dispensing front edge adjacent said support surface and across the width thereof, 2. a substantially horizontally extending but slightly upwardly humped cloth de-wrinkling shelf extending from said front edge away from said support surface; and e. means for feeding cloth under substantially constant tension from said source to said shelf.
Claim 2
Dependent Claim
104 words
Apparatus for spreading a strip of cloth from a source thereof onto a horizontal support surface with a minimum of wrinkling comprising: a. a frame; b. means for effecting relative horizontal movement between said support surface and said frame; c. an arcuate, smooth slide mounted on said frame, said slide having: 1. a cloth dispensing front edge adjacent said support surface and across the width thereof, 2. a substantially horizontally extending but slightly upwardly humped cloth de-wrinkling shelf extending from said front edge away from said support surface; and e. means for feeding cloth under substantially constant tension from said source to said shelf.
Claim 3
Dependent Claim
37 words
a substantially horizontally extending but slightly upwardly humped cloth de-wrinkling shelf extending from said front edge away from said support surface; and e. means for feeding cloth under substantially constant tension from said source to said shelf.
Claim 4
Dependent Claim
37 words
a substantially horizontally extending but slightly upwardly humped cloth de-wrinkling shelf extending from said front edge away from said support surface; and e. means for feeding cloth under substantially constant tension from said source to said shelf.
Claim 5
Dependent Claim
62 words
The apparatus of claim 1 characterized further in that said shelf terminates in a wall extending downwardly therefrom, there being a smooth transition between said shelf and said wall and in that said means for feeding includes means for dispensing cloth from said source into a loop adjacent said wall in response to the depth of said loop relative to said wall.
Claim 6
Dependent Claim
42 words
The apparatus of claim 1 characterized further in that said support surface is sufficiently rough in comparison to the surface of said slide to pull the cloth off said slide conjointly with the relative movement between said support surface and said frame.
Claim 7
Dependent Claim
39 words
The apparatus of claim 1 characterized further in that a wall extends vertically down from said shelf so as to create a sharp bend between said wall and said shelf for stretching said cloth, thereby aiding in de-wrinkling it.
Claim 8
Dependent Claim
53 words
The apparatus of claim 2 characterized further in that said means for dispensing is operative to stop dispensing cloth when said loop reaches a first predetermined position above the bottom of said wall and to start dispensing cloth when said loop reaches a second higher predetermined position above the bottom of said wall.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |