US4311023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning servicing apparatus
Assignee: Individual
•
Filing: 1980-05-15
•
Granted: 1982-01-19
•
Expires: 2000-05-15
Abstract
Abstract In an apparatus for use for servicing air conditioning equipment, particularly in an automobile, the apparatus includes a container or cannister having a flow tube centrally located within it, extending from its upper closure member to within proximity of its base, with the upper section of the container being removable, and having a filter located therein. During usage, the container is useful for draining the refrigerant and lubricant from an automobile air conditioning system, with the refrigerant filtering through the filter, while the lubricant is collected within the container, and can be reused. The container also includes a magnetic member associated with the base to assure stable attachment of the apparatus to any metallic supporting surface during usage.
Inventors
- 👤 James P. Watral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00507; B60H1/00585; F; F25; F25B; F25B45/00; F25B2345/00; F25B2345/002
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
203 words
An air conditioning servicing apparatus principally for use in conjunction with an automobile, or the like, air conditioning system of the type which includes a charge of refrigerant and lubricant materials, comprising, a container of appreciable capacity for holding at least the quantity of lubricant normally added to the aforesaid type of air conditioning system, an upper closure member for the container, and an upper portion for the container, said closure member connecting upon said upper portion of the container, said upper portion of the container having at least one vent opening therethrough for allowing the escape of gaseous refrigerant being released from the aforesaid type of system while capturing the discharging lubricant material, a filter provided within said upper portion of the container to filter the release of the said type of refrigerant, a flow tube extending down the container, said closure member having an aperture therethrough and with the flow tube being located through said aperture, whereby the flow tube communicated with the aforesaid type of air conditioning system for accomodating the discharge of any refrigerant and lubricant to the container where the lubricant may be collected and the gaseous refrigerant be released through its upper disposed filter to the atmosphere.
Claim 2
Dependent Claim
203 words
An air conditioning servicing apparatus principally for use in conjunction with an automobile, or the like, air conditioning system of the type which includes a charge of refrigerant and lubricant materials, comprising, a container of appreciable capacity for holding at least the quantity of lubricant normally added to the aforesaid type of air conditioning system, an upper closure member for the container, and an upper portion for the container, said closure member connecting upon said upper portion of the container, said upper portion of the container having at least one vent opening therethrough for allowing the escape of gaseous refrigerant being released from the aforesaid type of system while capturing the discharging lubricant material, a filter provided within said upper portion of the container to filter the release of the said type of refrigerant, a flow tube extending down the container, said closure member having an aperture therethrough and with the flow tube being located through said aperture, whereby the flow tube communicated with the aforesaid type of air conditioning system for accomodating the discharge of any refrigerant and lubricant to the container where the lubricant may be collected and the gaseous refrigerant be released through its upper disposed filter to the atmosphere.
Claim 3
Dependent Claim
43 words
The invention of claim 1 and including a valve means operatively associated with the flow tube and said valve means capable of being opened to allow passage of the said refrigerant and lubricant therethrough, or closed to curtail the passage of such materials.
Claim 4
Dependent Claim
21 words
The invention of claim 2 and wherein said valve means is located externally of the container and above its closure member.
Claim 5
Dependent Claim
13 words
The invention of claim 3 and wherein said valve means comprises a petcock.
Claim 6
Dependent Claim
40 words
The invention of claim 1 and wherein said filter seats within the upper portion of the container, and said upper portion of the container having at least one aperture therethrough to vent the gaseous refrigerant passing through the said filter.
Claim 7
Dependent Claim
21 words
The invention of claim 5 and wherein there are a series of vent apertures provided through the said container upper portion.
Claim 8
Dependent Claim
16 words
The invention of claim 5 and wherein said filter is fabricated to a sponge like consistency.
Claim 9
Dependent Claim
14 words
The invention of claim 7 and wherein said filter is formed of a polyurethane.
Claim 10
Dependent Claim
25 words
The invention of claim 8 and including a retainer associated within the upper portion of the container and useful for holding the filter in place.
Claim 11
Dependent Claim
20 words
The invention of claim 1 and hwerein said flow tube extends downwardly into proximity with the bottom of the container.
Claim 12
Dependent Claim
16 words
The invention of claim 10 and wherein the lower end of the flow tube is slanted.
Claim 13
Dependent Claim
19 words
The invention of claim 10 and including another filter means enveloping the said lower end of the flow tube.
Claim 14
Dependent Claim
14 words
The invention of claim 12 and wherein said filter means comprises a screen filter.
Claim 15
Dependent Claim
12 words
The invention of claim 1 and wherein said container is quart size.
Claim 16
Dependent Claim
20 words
The invention of claim 14 and including calibration provided upon the container to indicate the quantity of lubricant contained therein.
Claim 17
Dependent Claim
30 words
The invention of claim 15 and including an indicator associated with the container and upon setting furnishing an indication regarding the quantity of materials being handled by the said container.
Claim 18
Dependent Claim
31 words
The invention of claim 1 and including a magnetic member operatively associated with the base of the container to assure stable attachment of the apparatus to a metallic support during usage.
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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) | 1985-01-18 | 1985-07-20 | 1986-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-18 | 1989-07-20 | 1990-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-18 | 1993-07-20 | 1994-01-19 | $7700.00 | Window Closed / Lapsed |