Patent US3815635A successfully refreshed from Google Patents.
US3815635A
Expired / Lapsed
US
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Temperature compensator device and fluidic assembly incorporating it
Assignee: Automatic Switch Co
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Filing: 1973-07-30
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Granted: 1974-06-11
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Expires: 1993-07-30
Abstract
Abstract In a fluidic apparatus, annular body members are stacked between upper and lower plates. The plates and body members provide a centrally located aperture through which a manifold axially extends. The outer contour of the manifold resembles a bolt in that it includes a head and a threaded section. When the apparatus is assembled, the head abuts the upper plate and a nut engaged with the threaded section biases, via a washer and a plurality of bi-metallic washers, a spacer against the lower plate. Each of the bi-metallic washers resembles a truncated hollow cone and the metal on the concave side of the washer has a higher thermal coefficient of expansion than the metal on the convex side. Thus, if after the apparatus is assembled the ambient temperature rises causing the body members to expand, the bi-metallic washers tend to flatten out, thereby reducing pressure variations between the body members. The temperature reaction of the assembled apparatus is reversible and, therefore, the fluidic apparatus is useable over a wide range of temperatures.
Inventors
- 👤 T Jansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
F; F16; F16B; F16B31/00; F16B31/04; F15; F15C; F15C1/00; F15C1/02; F15C1/06; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/96; Y10T; Y10T137/00; Y10T137/206; Y10T137/2224
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
116 words
A fluidic circuit apparatus comprising: a. a stack of component body members, at least some of said members increasing and decreasing in thickness with increases and decreases, respectively, of the ambient temperature, b. means for locking said body members together, and c. temprature compensator means arranged between said locking means and said stack, said temperature compensator means including an element whose effective thickness decreases and increases with increases and decreases, respectively, of the ambient temperature, whereby when the ambient temperature changes, the effective thickness of said temperature compensator element changes in a manner opposite to the change in thickness of said body members so as to maintain the pressure between the stacked body members substantially constant.
Claim 2
Dependent Claim
116 words
A fluidic circuit apparatus comprising: a. a stack of component body members, at least some of said members increasing and decreasing in thickness with increases and decreases, respectively, of the ambient temperature, b. means for locking said body members together, and c. temprature compensator means arranged between said locking means and said stack, said temperature compensator means including an element whose effective thickness decreases and increases with increases and decreases, respectively, of the ambient temperature, whereby when the ambient temperature changes, the effective thickness of said temperature compensator element changes in a manner opposite to the change in thickness of said body members so as to maintain the pressure between the stacked body members substantially constant.
Claim 3
Dependent Claim
34 words
A fluidic circuit apparatus as defined in claim 1 wherein said temperature compensator element is non-flat, and said element tends to flatten out or become more non-flat with increases and decreases, respectively, of temperature.
Claim 4
Dependent Claim
36 words
A fluidic circuit apparatus as defined in claim 2 wherein said temperature compensator means includes a plurality of said elements, said elements being arranged in alignment with each two adjacent elements being arranged in mirror-image relationship.
Claim 5
Dependent Claim
18 words
A fluidic circuit apparatus as defined in claim 1 wherein said temperature compensator element is a bi-metallic member.
Claim 6
Dependent Claim
22 words
A fluidic circuit apparatus as defined in claim 1 wherein said body members and temperature compensator element have the same peripheral shape.
Claim 7
Dependent Claim
25 words
A fluidic circuit apparatus as defined in claim 1 wherein said body members are circular disks, and said temperature compensator element is a frusto-conical washer.
Claim 8
Dependent Claim
74 words
A fluidic circuit apparatus as defined in claim 1 including aligned apertures in said body members, a clamp member extending through said aligned apertures, said member carrying an abutment, said temperature compensator element slidably arranged on said clamp member, and locking means coupled to said clamp member and movable with respect thereto toward and away from said abutment for applying a compressive force to said stack of body members and said temperature compensator element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |