US4396359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor compressor unit
Assignee: Carrier Corp
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Filing: 1981-07-20
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Granted: 1983-08-02
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Expires: 2001-07-20
Abstract
Abstract A motor compressor unit comprising a compressor, a motor, a shell enclosing the compressor and the motor, a motor cap located within the shell, covering a portion of the motor, and defining an attenuation tube opening, and an attenuation tube connected to the motor cap and extending through the attenuation tube opening. The attenuation tube includes a body; first and second lower lips extending outward from the body, below and in pressure contact with an outside surface of the motor cap, first and second alignment flange portions projecting above the first and second lower lips, adjacent opposed surfaces of the motor cap defining the attenuation tube opening; said first and second upper lips extending outward from the body, above and in pressure contact with an inside surface of the motor cap.
Inventors
- 👤 Tadek M. Kropiwnicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:02
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/12; F04B39/123; Y; Y10; Y10S; Y10S181/00; Y10S181/403; Y10S285/00; Y10S285/921; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
289 words
A motor compressor unit comprising: a compressor; a motor connected to the compressor to drive the compressor; a shell enclosing the compressor and the motor; a motor cap located within the shell, secured to and covering a portion of the motor, and defining an attenuation tube opening; an attenuation tube connected to the motor cap, extending through the attenuation tube opening, and including a body having a front side and defining a pair of spaced, front slits extending downward from a top of the front side of the body to form a front, flexible body section, first and second lower lips extending outward from the body, below and in pressure contact with an outside surface of the motor cap, first and second alignment flange portions projecting above the first and second lower lips, adjacent opposed surfaces of the motor cap defining the attenuation tube opening to maintain the attenuation tube aligned therewithin, first and second upper lips extending outward from the body, above and in pressure contact with an inside surface of the motor cap, and wherein a selected one of the first and second upper lips extends outward from the front, flexible body section, and a selected one of the first and second upper lips includes a bottom section extending outward from the body, in pressure contact with the inside surface of the motor cap, and defining a beveled surface gradually sloping upward and outward to facilitate moving the bottom section into pressure contact with the inside surface of the motor cap, and a top section extending outward from the body and upward from the bottom section, and defining a beveled surface gradually sloping upward and inward to assist inserting the attenuation tube into the attenuation tube opening.
Claim 2
Dependent Claim
289 words
A motor compressor unit comprising: a compressor; a motor connected to the compressor to drive the compressor; a shell enclosing the compressor and the motor; a motor cap located within the shell, secured to and covering a portion of the motor, and defining an attenuation tube opening; an attenuation tube connected to the motor cap, extending through the attenuation tube opening, and including a body having a front side and defining a pair of spaced, front slits extending downward from a top of the front side of the body to form a front, flexible body section, first and second lower lips extending outward from the body, below and in pressure contact with an outside surface of the motor cap, first and second alignment flange portions projecting above the first and second lower lips, adjacent opposed surfaces of the motor cap defining the attenuation tube opening to maintain the attenuation tube aligned therewithin, first and second upper lips extending outward from the body, above and in pressure contact with an inside surface of the motor cap, and wherein a selected one of the first and second upper lips extends outward from the front, flexible body section, and a selected one of the first and second upper lips includes a bottom section extending outward from the body, in pressure contact with the inside surface of the motor cap, and defining a beveled surface gradually sloping upward and outward to facilitate moving the bottom section into pressure contact with the inside surface of the motor cap, and a top section extending outward from the body and upward from the bottom section, and defining a beveled surface gradually sloping upward and inward to assist inserting the attenuation tube into the attenuation tube opening.
Claim 3
Dependent Claim
70 words
A motor compressor unit as defined by claim 1 wherein: the body further includes a back side and further defines a pair of spaced, back slits extending downward from a top of the back side of the body to form a back, flexible body section; the first upper lip extends outward from the front, flexible body section; and the second upper lip extends outward from the back, flexible body section.
Claim 4
Dependent Claim
34 words
A motor compressor unit as defined by claim 2 wherein the top section includes a lower portion defining a substantially vertical surface extending between the beveled surfaces defined by the top and bottom sections.
Claim 5
Dependent Claim
144 words
A motor compressor unit as defined by claim 2 wherein: said bottom section is a front lip bottom section; said top section is a front lip top section; the first upper lip includes the front lip bottom section and the front lip top section; and the second upper lip includes a back lip bottom section extending outward from the back, flexible body section, in pressure contact with the inside surface of the motor cap, and defining a beveled surface sloping upward and outward to facilitate moving the back lip bottom section into pressure contact with the inside surface of the motor cap, and a back lip top section extending outward from the back, flexible body section and upward from the back lip bottom section, and defining a beveled surface sloping upward and inward to assist inserting the attenuation tube into the attenuation tube opening.
Claim 6
Dependent Claim
49 words
A motor compressor unit as defined by claim 2 further including an electric lead wire extending through the attenuation tube to connect the motor to an electric energy source; and wherein the body defines a curved, top edge to reduce friction between the body and the electric lead wire.
Claim 7
Dependent Claim
27 words
A motor compressor unit as defined by claims 3, 4 or 5 wherein the body tapers inward from a bottom thereof to the top of the body.
Claim 8
Dependent Claim
69 words
A motor compressor unit as defined by claim 6 wherein: the body further includes left and right sides; the first lower lips extends outward from the left side of the body; the first alignment flange portion extends upward from the first lower lip; the second lower lip extends outward from the right side of the body; and the second alignment flange portion extends upward from the second lower lip.
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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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |