Robert R Mackendrick from 48 Pond St, Milford, CT 06460, age 87, Phone: 2038747470

Pressure Sealing Bearing Assembly For Use In Environmental Control Suits And Environmental Suits Containing Such Bearing Assemblies
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US Patent:

45960542, Jun 24, 1986
Filed:

Jul 3, 1984
Appl. No.:

6/627455
Inventors:

Robert R. MacKendrick - Milford CT
Dennis L. Finch - West Haven CT
Assignee:

Air-Lock, Incorporated - Milford CT
International Classification:

A62B 1700
B63C 1104
F16J 1532
US Classification:

2 21A
Abstract:

A bearing assembly for sealing the relatively rotatable adjoining portions of a pressurized environmental control suit for human use utilizes a pair of rotatable bearing members with an annular sealing member having a body portion and a lip portion extending from the body portion at an angle thereto. The lip portion includes an outer end portion of relatively thin cross section and a thicker portion disposed adjacent the body portion. The relatively thin outer end portion deflects in contact with the opposed surface and extends therealong to provide a seal therewith with relatively little friction. Upon conditions for extreme pressure differential, the thicker portion of the lip will be deflected to increase the amount of lip length bearing upon the surface of the opposed member to increase the sealing action.

Bearing For A Pressurized Protective Suit
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US Patent:

55991106, Feb 4, 1997
Filed:

Jun 7, 1995
Appl. No.:

8/483387
Inventors:

Robert R. MacKendrick - Milford CT
Assignee:

Airlock, Incorporated - Milford CT
International Classification:

F16C 3361
A62B 1700
US Classification:

384501
Abstract:

A pressure sealing bearing (13) for use in a protective environmental suit (10) is provided. The bearing employs inner and outer races (44,54) composed of a light weight, relatively weak material, such as a plastic or aluminum alloy. To provide long wear and adequate strength, the bearing includes contoured race wires (46,48,56,58) and an interlock mechanism (72,74). The ends of inner race wire 48 are designed to butt against one another to control the deformation due to compression of the inner race (44) when pressure is applied to the bearing. The ends of outer race wire 56 include interlocking hooks (82,84) which control the deformation due to tension of the outer race (54). In this way, the bearings achieve the performance of all stainless steel bearings while providing weight reductions of at least 60%.

Spacesuit Sizing System
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US Patent:

50689193, Dec 3, 1991
Filed:

Jul 17, 1990
Appl. No.:

7/553980
Inventors:

Robert R. MacKendrick - Milford CT
Mario Gonsalves - Shelton CT
Assignee:

Air-Lock, Incorporated - Milford CT
International Classification:

A62B 1700
F16L 2500
F16L 922
US Classification:

2 21A
Abstract:

A system for adjusting the size of a spacesuit is provided in which threaded rings of varying sizes are screwed into annular collars which are affixed to the section of the spacesuit whose size is to be adjusted. The rings and the collars include redundant interlocks designed to prevent inadvertent uncoupling of the components. In certain preferred embodiments, multi-start, centralizing, acme screw threads are used.

Valve For Puncturing And Releasing Gas From A Pressurized Cylinder
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US Patent:

48058025, Feb 21, 1989
Filed:

Feb 10, 1987
Appl. No.:

7/012868
Inventors:

Robert R. MacKendrick - Milford CT
John J. McKeon - Hamden CT
Assignee:

Air-Lock, Incorporated - Milford CT
International Classification:

B67B 764
US Classification:

222 5
Abstract:

A valve mechanism for opening the seal on a high pressure gas cylinder, e. g. , a cylinder having an internal pressure on the order of 6,000 psi, is provided. The valve includes a piston assembly which carries a cutter for puncturing the cylinder's seal. The initial puncture is performed manually. Thereafter, the escaping gas from the cylinder is used to force the piston towards the seal to complete the puncturing process.

Spacesuit Sizing And Tension Relief Bearing
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US Patent:

61580503, Dec 12, 2000
Filed:

Dec 15, 1998
Appl. No.:

9/211401
Inventors:

Robert R. MacKendrick - Milford CT
Assignee:

Air-Lock, Incorporated - Milford CT
International Classification:

A62B 1700
B64G 600
US Classification:

2 212
Abstract:

An assembly (100) for adjusting the size of a spacesuit and/or for relieving tension applied to the spacesuit is provided in which first and second members (102,104) slide relative to one another along a longitudinal axis (106) to vary the assembly's length. The members (102,104) define a first region (116) which is internal to both members and which changes in volume as the length of the assembly is varied and a second region (118) which is external to the first member (102) and internal to the second member (104) and which also changes in volume as the length of the assembly is varied. The first and second regions (116,118) are connected to one another by a gas conducting path (120). These regions (116,118) have sealed cross-sectional areas which are substantially equal to one another. In this way, pressurization of the spacesuit produces no net sliding motion of the first and second members (102,104) along the longitudinal axis (106).