US3939614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading dock seal
Assignee: Rite Hite Corp
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Filing: 1974-07-26
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Granted: 1976-02-24
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Expires: 1994-07-26
Abstract
Abstract A loading dock seal embodying an inflatable member disposed in overlying relation to a resilient, compressible pad member.
Inventors
- 👤 Cyril P. Frommelt
- 👤 Sylvan J. Frommelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/008; Y; Y10; Y10S; Y10S52/00; Y10S52/13
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
209 words
In a loading dock seal of the type to sealingly engage a truck disposed in loading and unloading position relative to a doorway in a warehouse wall, a. an elongated section, and b. means for securing said section on such a wall in position to extend along such a doorway in position to so engage such a truck c. said section comprising 1. an elongated backing member adapted to be mounted on such a wall with one side thereof disposed in facing relation to said wall, 2. an elongated compressible resilient pad mounted on the side of said backing member remote from said one side, and 3. an inflatable member a. secured to said backing member by means disposed exteriorly of said pad, and b. projecting outwardly from the side of said pad remote from said backing member, d. said pad being secured to said second mentioned side of said backing member in substantially covering relation thereto, e. said inflatable member comprising a tubular portion having two spaced securing means extending therefrom, and f. said securing means being secured to respective opposite edge portions of said backing member in position to support said tubular portion in overlying juxtaposition to said side of said pad remote from said backing member.
Claim 2
Dependent Claim
209 words
In a loading dock seal of the type to sealingly engage a truck disposed in loading and unloading position relative to a doorway in a warehouse wall, a. an elongated section, and b. means for securing said section on such a wall in position to extend along such a doorway in position to so engage such a truck c. said section comprising 1. an elongated backing member adapted to be mounted on such a wall with one side thereof disposed in facing relation to said wall, 2. an elongated compressible resilient pad mounted on the side of said backing member remote from said one side, and 3. an inflatable member a. secured to said backing member by means disposed exteriorly of said pad, and b. projecting outwardly from the side of said pad remote from said backing member, d. said pad being secured to said second mentioned side of said backing member in substantially covering relation thereto, e. said inflatable member comprising a tubular portion having two spaced securing means extending therefrom, and f. said securing means being secured to respective opposite edge portions of said backing member in position to support said tubular portion in overlying juxtaposition to said side of said pad remote from said backing member.
Claim 3
Dependent Claim
32 words
A loading dock seal for mounting on a wall having a doorway therein, said seal comprising a. an elongated head section, b. two elongated side sections, c. each of said sections comprising
Claim 4
Dependent Claim
32 words
A loading dock seal for mounting on a wall having a doorway therein, said seal comprising a. an elongated head section, b. two elongated side sections, c. each of said sections comprising
Claim 5
Dependent Claim
110 words
an elongated resilient pad having one face adapted to be disposed in facing relation to such a wall, and 2. an inflatable member a. mounted on the face of said pad remote from said one face, and b. projecting outwardly therefrom in a direction perpendicular to said one face, and d. means directly connected to said inflatable member exteriorly of said pad and securable to such a wall for supporting respective ones of said sections in position to extend along respective sides of said doorway in such a wall with said one face of said pad of each of said sections being disposed in said facing relation to said wall
Claim 6
Dependent Claim
110 words
an elongated resilient pad having one face adapted to be disposed in facing relation to such a wall, and 2. an inflatable member a. mounted on the face of said pad remote from said one face, and b. projecting outwardly therefrom in a direction perpendicular to said one face, and d. means directly connected to said inflatable member exteriorly of said pad and securable to such a wall for supporting respective ones of said sections in position to extend along respective sides of said doorway in such a wall with said one face of said pad of each of said sections being disposed in said facing relation to said wall
Claim 7
Dependent Claim
29 words
A loading dock seal as defined in claim 2, and in which a. each of said sections includes a backing plate mounted on said one face of said pad.
Claim 8
Dependent Claim
84 words
A loading dock seal as defined in claim 3, and in which a. said inflatable members comprise tubular body portions, and b. said means for supporting said sections comprise spaced securing members projecting from the exterior of said body portions, and c. said securing members are secured to respective opposite edge portions of respective ones of said backing plates in position to support said tubular body portions in position to dispose the exteriors thereof in overlying covering relation to respective ones of said pads.
Claim 9
Dependent Claim
35 words
A loading dock seal as defined in claim 3, and in which a. each of said inflatable members comprises a tubular body portion mounted on the face of said pad remote from said backing plate.
Claim 10
Dependent Claim
25 words
A loading dock seal as defined in claim 3, and which includes a. means for interconnecting said inflatable members for the passage of air therebetween.
Claim 11
Dependent Claim
52 words
A loading dock seal as defined in claim 6, and in which a. said means for interconnecting comprise 1. openings in said pads for feeding air between adjacent ones of said sections, and 2. openings between said pads and said inflatable members in respective ones of said sections for feeding air therebetween.
Claim 12
Dependent Claim
45 words
A loading dock shelter as defined in claim 7 and in which a. said means for interconnecting comprise 1. means disposed around said first mentioned openings for releasably and repeatedly securing the latter in operable communication with each other for the passage of air therebetween.
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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |